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Rules For The Latvian Et Seq Of The Lbn 221-98 "building An Internal Water Pipes And Sewerage"

Original Language Title: Noteikumi par Latvijas būvnormatīvu LBN 221-98 "Ēku iekšējais ūdensvads un kanalizācija"

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The Cabinet of Ministers of the Republic of Latvia of 21 July 1998, the Regulation No. 256 (in Riga. No. 39, § 1) rules on the Latvian et seq of the LBN 221-98 "building internal water pipes and sewerage" Issued in accordance with article 2 of the law on construction of the fourth part 1. Approve the attached Latvian et seq of the LBN 221-98 "building internal water pipes and sewerage".
2. By 1 august 1998 in the territory of the Republic of Latvia is to match the former USSR-construction norms and rules-85 "internal 2.04.01 Snips aqueduct and sewerage. The design rules ', which by 31 December 1984 decision No 292 approved the former Soviet State Construction Committee.
3. Projects of works lawfully undertaken in 1998 to July 31 and that technical solutions are compliant with the applicable period under the requirements of the law, the processing of projects according to the Latvian et seq of the LBN 221-98 "building an internal water pipes and sewerage" requirement is not mandatory.
4. the rules shall enter into force on the 1 august 1998.
 
Prime Minister g. shore environmental protection and regional development Minister-Minister of agriculture a. Rāviņš approved by the Cabinet of Ministers of 21 July 1998, regulations No 256 Latvian et seq of the LBN 221-98 buildings in the internal water pipes and sewerage i. General questions 1. This requires new et seq and compensated building internal cold and hot water tap, municipal sewage and rain-water drainage system design.
2. Et SEQ does not apply to the following object design: 2.1 for fire water supply system in buildings and structures which the fire requirements determine the regulatory documents;
2.2. fixed automatic fire extinguishing systems;
2.3. the siltummezgl of water supplies;
2.4. the hot water treatment facilities;
2.5. the production and technological equipment, including medical procedure water supply system.
3. building internal plumbing, household sewage and rainwater drainage system design must comply with the laws and other regulations, as well as the et seq.
4. building the internal are equipment and water pipeline system, which delivers consumers this one-building or group of buildings with water from the water supply network through common water metering node. If water is taken from the internal water external fire-fighting, to respect Latvian et seq of the LBN-222 p with water supply, external networks and structures.
5. building internal drainage is to the external walls of buildings designated equipment and pipeline system that provides technical and sanitary-technological equipment for the discharge of waste water from building up the first manhole. If necessary, the project provides for the local water treatment installations, as well as the discharge of sewage overflows.
6. All buildings that are being constructed in the area, which has created external sewerage network, to the ieprojekt internal water pipes and sewers. If buildings are built in the area, where there is no outer sewerage network, water supply and sewer systems need local sewage treatment installations, which the project according to the Latvian et seq of the sewers, LBN 223 external networks and structures.
7. the populated places where there is no outer sewerage network, after coordination with the regional environmental health centres may be constructing a dry toilet effluent krājtvertn or exported without water introduction installation the following buildings: 7.1. residential buildings, which are used only in summer;
7.2. in individual residential buildings;
7.3. the cafeteria, if it is not more than 10 seats;
7.4. the industrial and municipal buildings, as well as the production buildings, if shift work no more than 15 people.
8. where it is not possible to have local sewage treatment installations, transportable toilets shall be provided or biotualet.
9. The need to construct the buildings internal rainwater drainage network, determine the relevant building design standards.
10. building the aqueduct, sewage and rainwater drainage system used in pipes, fittings, equipment and materials must comply with the national standard, et seq, and technical requirements.
11. Projected main technical solutions and their realization in order to be justified, comparing them with other possible options. Technical-economic calculation to perform those variants, which benefits (shortfalls) without calculation is impossible to determine.
12. Water supply and sewage system projects should be made for measures to prevent water loss and reduces noise.
13. Internal water supply system depends on technical-economic indicators, sanitary, fire higiēniskaj and production technological requirements, as well as taking into account the external tap Options.
14. This main legend used et seq and the terms listed in annex 1 and 2.
II. Water quality and temperature of the water supply systems of household consumption in 15 easy-to-use, cold and hot water quality must meet the State standards for drinking water. Production needs of water quality determined according to technological requirements.
16. it is prohibited to combine the municipal aqueduct with water that the water does not meet drinking water quality requirements, as well as the use of municipal water pipes in construction materials that lower water quality.
17. If the water supply is a building designed from two independent external water supply systems, connecting the place must be at least 50 mm large Jet break. Both input can be connected directly, if the fitting pipe, which must be removed when running in the second input.
18. Hot water temperature distribution in the water must be not less than 55 ° C and not higher than 70 ° c.
19. The water flow rate and the temperature of the regulations to receive water distribution sites of the hot water supply hose provided with the circulation system, or from water heaters or the pipeline, which is in addition to the heated water, for at least 10 seconds after the water distribution fitting. Of the water distribution points, which is rarely used, as well as individual home the l IKE can be longer.
20. the pre-school child institutions water temperature water distribution sites, which use the children, must not be higher than 37 ° c.
21. Catering establishments, as well as elsewhere, which requires a higher temperature than specified in that rule 18, additional heating of the water used for domestic water heater.
III. Water consumption calculation and determination of the quantity of heat in the water and sewage system, hot water supply needs 22. building water supply and sewer systems need to ensure consumers of water, or sanitary engineering devices appropriate for water supply and wastewater discharge flow rate.
23. Sanitary technical devices (water distribution fitting) consumption of water per second (l/s): 23.1. separate sanitary technical device-in accordance with this annex 3 et seq;
23.2. the various sanitary technical apparatus serving the same water consumers izzar network stage-in accordance with this annex 4 et seq;
23.3. the various sanitary technical devices serving different customers, according to the following formula: (1) 14.5. network looped sanitary technical devices water consumption per second determines the system as a whole, and accept that it is the same in all stages of the loop;
14.6. residential and public buildings, for which consumption of water and sanitary engineering devices is not news, it is assumed that: 24. Maximum water consumption per second (l/s) tap the network calculates the period is defined by the following formula (ratio-determined in accordance with annex 5 of this et seq): (2) tap water flow rate 24.1. network extremes phases determined by calculation, but it may not be less than certain sanitary technical devices maximum water consumption per second;
24.2. may not take into account the washing machine or dishwasher water consumption in residential bathroom and kitchen; building a dividing network stages where water discharged to several apartments or to more consumers, these water flow rate shall be taken into account;
15.1. industrial water consumption in technological needs determined by summing the individual water consumption of technological equipment, if the operating time of the equipment the same;
15.2. block sanitary technical devices water consumption can be calculated in accordance with this annex 3 of 3 et seq. Note and summarize with the formula (2) calculation and other constant consumption of the devices during the match.
25. Sanitary technical devices for probability is calculated as follows: 25.1. If water consumers in buildings or structures are identical (ignoring U and N for the changes in individual stages of calculation),-the following formula as: (3) 25.2. If water consumers in buildings or structures are different,-according to the following formula: (4) 25.3. If you do not know the sanitary technical devices, the probability of their use can be calculated by (3) and (4) formulas assuming that U = N;

25.4. If several consumer groups maximum water consumption do not coincide in time, sanitary engineering devices the use of probability is given by (3) and (4) using the formula coefficients and depressing view of an analogue system operational data.
26. the maximum consumption of Sewage per second (l/s): 26.1. If the maximum water flow rate per second is a £ 8 qt water l/s,-according to the following formula: (5) 26.2. other cases according to the following formula: s = qs qt.
27. Separate sanitary technical devices water consumption per hour (l/h): 27.1. If water consumers in buildings or structures are the same, in accordance with this annex 4 et seq;
16.9. If water consumers in buildings or structures are different,-according to the following formula: (6) axis 17.0. residential and public buildings, for which sanitary technical apparatus is not news, it is assumed that: 28. Sanitary technical devices probability hour system is defined by the following formula: (7) 29. Maximum water consumption per hour (m3/h) is defined by the following formula: (8) 29.1. industrial plants and municipal administration buildings the maximum consumption of water per hour can be determined by summing the water consumption in the shower and water consumption of household needs according to annex 4 of this et seq, and taking into account the number of consumers in the busiest shift;
29.2. industrial engineering water consumption shall be determined in accordance with paragraph 25 of the et seq.
30. the average water consumption per hour (m3/h) maximum water consumption in the period (a day or shift) is defined by the following formula: (9) 31. Open United heating and hot water supply system of hot water stāvvado to provide 65 ° C, but the hot water consumption norms fixed in accordance with this annex 4 et seq by applying a coefficient of 0.85 and without changing the total quantity of water consumed.
32. the maximum consumption of waste water per hour calculated in accordance with this paragraph 28 et seq.
33. Water consumption per day is determined by summing all consumers of water consumed and the amount of water spraying.
34. Hot water supply the necessary quantity of heat (kW) peak consumption period (a day or shift) is defined by the following formula: 34.1 average consumption. hour: (10) 21.3. maximum consumption st und: (11) IV. Water pressure aqueduct systems 35. municipal water pressure and the water systems at the lowest water distribution site must not be greater than 600 kPa.
36. The water pressure in the fire mains systems at least in fire hydrant installed must not exceed 900 kPa. The water pressure in the joint municipal and fire water systems, fire extinguishing at the time the lowest installed water distribution site may not exceed 900 kPa, and the system hydraulic test must be carried out when it is installed, the water distribution fittings.
37. pievadcaurul water (except for the split pipeline network) water flow, regulations may be reduced by 70%. In that case the lowest water flow rate of the water distribution site may not exceed 150% of the legislative flow. Critical water distribution areas reinforcements are used, which requires less free sp iedien.
V. cold water tap System 38. Buildings can be one or more of the following internal tap cold water tap systems: 38.1. municipal (drinking) water aqueduct system;
38.2. the tap System (one or more);
38.3. the fire of dzēsīb water system;
23.9. the joint tap System. Building fire water system usually combines with municipal water systems or water production system.
39. The cold water tap in the system (municipal, industrial, fire, and United) consists of an introduction, water meter, dividing the network nodes, the riser pipes, sanitary-technical devices and technological equipment as well as water control, distribution and blending fitting and noslēgarmatūr. Depending on the local ākļ and around the t production technology in the internal water systems may be pumping equipment, water reserve tank and regulator tanks.
40. Water supply systems to ensure the technological requirements and take measures against the machine and pipe corrosion, deposition of salts and organic fouling growth.
41. in order to reduce water consumption, buildings and constructions can be reversed and repeated in the ieprojektē water use system, if it is economically justified.
Vi. Hot water tap System 42. Depending on the consumer, as well as water treatment building designed for centralized hot water supply system or local heater.
43. Water heater for hot water supply systems, preferably place the consumer load Center.
44. the residential, medical and children's bathrooms and showers of the institutions ' premises required Towel warmers you prefer to connect to the hot water supply inlet of the system riser.
45. The five and higher residential and public buildings gear recommended to combine sections junctions with a total circulation of wires. Section junctions can be combined from three to eight in the riser, the upper and lower distribution by placing heated premises or in unheated spaces, if provided with heat insulation of pipelines.
46. Sanitary technical devices may not add circulation pipelines.
47. Tank batteries in centralized hot water supply systems installed in accordance with chapter XIV of this et seq.
VII. Fire water system 48. Fire internal water need and minimum water consumption in residential, public and industrial administration and municipal buildings shall be determined in accordance with table 1 of these provisions, but the production and warehouse buildings-in accordance with the provisions of table 2.
49. Fire water consumption 50 and 65 mm diameter of the hydrants, depending on height, dense spray hose length and the fire barrel tip exhaust diameter indicated in table 3 of these rules. Need to install a fixed automatic fire extinguishing equipment shall be determined in accordance with the codes of the r matīv of Latvia LBN 201-96 "fire safety rules."
50. each 38, 50 and 65 mm diameter fire hydrants should be assembled with the same diameter of 10, 15 or 20 m long hose and fire barrel: 50.1. using a semi (not compressed) and lined rubber or synthetic materials, fire hoses, their length can be increased to 30 m, if necessary spiedienaugstum calculates adjustments;
50.2. fire hoses with a diameter of 19 and 25 mm, with a 25 mm diameter in the suite hydrants and barrel.
51. the production and warehouse buildings fire-fighting water consumption increases about five l/s (one spray): 51.1 3. (a) and 4 (a) the degree of fire protection in buildings from the vulnerable steel structures or one piece glued timber structures (also with pretugun in aizsargapstrād);
51.2. (a) the degree of fire protection 4 buildings that are up to 10000 m3, būvapjom and burning insulation delimiting constructions; the building, which is more būvapjom 10000 m3 and water flow rate, an increase of 5 l/s (one spray) for each full or not full of 100000 m3.
52. Fire internal tap is not necessary: 52.1. buildings and spaces būvapjom and height is less than is this 1 et seq., and in table 2;
52.2. mainstream schools (except boarding schools), also if it is a fixed kinoaparatūr;
52.3. seasonal theaters;
52.4. production building where water may cause explosion, fire, and the fire spread;
52.5.1 and 2 (D) and (E) the degree of fire protection fire risk categories of production buildings, regardless of their būvapjom and 3.-5. fire protection grade C, D and E categories of fire risk production buildings, of which the būvapjom are up to 5000 m3;
52.6. industrial production, administration and municipal buildings and facilities, as well as fruit and vegetable storage and cold storage, if it is not in the internal and external pipes for fire-fighting of water bodies or ūdenstvertn;
52.7. fodder, pesticide and fertiliser warehouses;
52.8. hay barns (also covered), where the floor area of not more than 3000 m2;
1. u n 52.9 2. fire grade agricultural products processing warehouses and (C) the categories of buildings fire risk that būvapjom is to 5000m3;
52.10. saunas.
53. If parts of buildings have different number of floors or rooms have different uses, fire-fighting and internal tap water consumption provides for each part of the building or room separately: 53.1. in buildings without fire bulkheads-after building the total būvapjom and the higher risk category and explosive;
53.2. buildings that have different categories of explosion and fire risk and dangerous of them is separated by fireproof partitions, part of the building-each individually;
53.3. If 1 and 2 the degree of safety in the building connects the transition from non-combustible materials and fire door,-būvapjom shall be calculated for each building separately; If the door is not fireproof, būvapjom and total-after building, which has the highest risk of explosion and category.

54. If to the fire tap water spiedienaugstum is greater than 400 kPa, before it be water pressure regulator or pressure reducing orifice. Aperture with the same diameter can be fitted with 3-4 floor.
55. Free spiedienaugstum before the fire hydrant should ensure solid water jet to be able to delete the fire at the highest and farthest point in the building at any time. The dense water jet range must be equal to the height of the space, but not less than: 55.1. six meters-residential and public buildings as well as industrial production, administration and municipal buildings, which do not exceed 50 m; 55.2. eight meters – residential buildings that are higher than 50 m, 55.3. Sixteen meters-public as well as industrial production, Government and municipal buildings, which is higher than 50 m. 56. Real water pressure at the hydrants down taking into account the loss of water pressure fire hose.
57. the duration of the hydrants is at least 45 minutes. If the fire hydrants shall be installed fixed automatic fire extinguishing systems, the operating time is equal to the system concerned.
 
table 1 residential, public, production company and blasted one jet production, administration and municipal building and room number of the minimum flow rate (l/s): 1. Residential buildings of up to 1.1 d ivpadsmitstāv sešpadsmitstāv 1 sešpadsmitstāv 1.5 divpadsmitstāv of up to 1.2, if the length of the corridor outside the apartments is more than 10 m 2 1.5 2. Administration building: six to 2.1 desmitstāv with būvapjom up to 25000 m3 1 1.5 up to six desmitstāv 2.2 būvapjom of 25000 m3 and with more 2 1.5 2.3. higher than the desmitstāv with the būvapjom up to 25000 m3 2 1.5 2.4. higher than desmitstāv with būvapjom of 1.5 m3 and 25000 more 3 3. Clubs (with a stage), theatres, cinemas, the courtroom (with Sas kaņ in kinoaparatūr) with 208 for publis LBN-CAI buildings 4. other public buildings: 4.1 to desmitstāv to būvapjom to 25000m3 to desmitstāv 1.5 1 4.2 with būvapjom more than 25000 m3 2 1.5 4.3 and higher desmitstāv with būvapjom up 25000m3 2 1.5 4.4. higher than desmitstāv with būvapjom more than 25000 m3
3 1.5 5. Industrial production, Government and municipal buildings, of which the būvapjom is: 5000-25000 m3 1 5.1 5.2. more than 25000 m3 1.5 2 1.5 notes.
 
 
1. If the building is greater būvapjom or number of floors than shown in the table, fire-fighting water consumption in line with the territorial fire monitoring service.
 
 
2. building of būvapjom is determined by the external dimensions, as well as including the cellars of v is.
 
 
table 2 building explosion-Jet and one jet minimum building hazard and consumption (l/s) up to 50 m high production and fire-risk warehouse buildings, of which būvapjom is the degree category 2 to 5 to 50 to 200 from 50 t up to 5 m3 m3 t. t. t. 200 400 m3 m3 1 and 2 (A), (B), (C) 2 x 2, 5 2 x 2 2x5 3x5 3 C 2x5 2x5 2x5-3.5 (D), (E)-2 x 2.5 2 x 2.5-4 and 2 x 2, 5 2x5-5 C-4 and 5-5-(D), (E) 2 x 2-notes.
1. If the building or space is greater than the height or būvapjom, shown in the table, fire-fighting water consumption, as well as the possibility of reducing the minimum consumption of one jet up to 1.5 l/s without reducing total water consumption of fire, coordinated with the regional fire monitoring service.
2. Fire water consumption and the number of buildings with a stream of fire protection grade: b 3 (frame construction that frame elements are of one-piece or glued wood or other combustible materials (mostly from wood), treated with fire protection materials); 3. (a) (not a protected building with metal frame and non-inflammable material from the plate wall structures with hard combustible insulation); 4. a (one-story building with a metal frame and a protected n o non-inflammable materials in the wall plate structures with combustible insulation), adopted depending on the buildings fire risk categories as 2nd and 4th degree of fire protection in buildings under this paragraph 45 et seq, equaling the level 3A 2. fire safety through the k and b and 3 HR 4. (a) the degree-4. fire safety.
3. būvapjom of the building shall be determined in accordance with note 1 to table 2.
table 3 58. Six and higher buildings and fire joint holding in water fire-fighting gear to the top of the sacilp. To these stāvvado ensure water circulation, sacilp together with one or more of the holding water, which set up the riser noslēgarmatūr.
59. If fire-fighting water pipes of phases a dry deployed not heated building, noslēgarmatūr onto heated spaces.
60. in determining fire riser and tap the location and number, you must meet the following requirements: 60.1. production and public buildings that require at least three calculation, and residential buildings, which is the length of the corridor outside the flats is not greater than 10 m and which require a minimum of two calculation Jet on one riser may be fitted with two fire hydrants composite;
60.2. residential buildings, which is the length of the corridor outside the flats is not greater than 10 m, as well as production and in public buildings, which require a minimum of two calculation, each space point deletes, using different gear.
61. The fire hydrant installation in technical floors, attic and technical underground is necessary if the same rooms built into the combustible structures or in combustible materials.
62. Each riser a maximum of two big jets.
63. when calculating the number of stream is four and more, can be used alongside the existing floor hydrants.
64. The fire hydrants shall be arranged 1.35 m above the floor. Inserted into the aizplombējamo cabinets with ventilation hole. Composite fire hydrants can be one above the other, and the lower the tap must be located at least 1 metre from the floor.
65. Public, manufacturing, Government and municipal buildings, the fire kilns will put fire extinguishers in accordance with the Cabinet of Ministers of 30 December 1997, regulations no 440 "fire safety rules".
66. The fire hydrant cabinets shall be labelled in accordance with the national standard (fire hydrant graphical representation, the tap number and national fire monitoring service phone number). 67. Fire hydrants typically points to the door, stairs, hallways, lobbies, patch and other easily accessible places where they do not interfere with human evacuation.
67. The fire hydrants typically points to the door, stairs, hallways, lobbies, patch and other easily accessible places where they do not interfere with human evacuation.
68. Space, equipped with a fixed automatic fire extinguishing equipment, hydrants can be fitted with a water sprinkler system behind the management nodes.
VIII. The cold water tap network calculation 69. Internal distribution network hydraulic calculation, taking into account the maximum water flow rate per second.
70. the domestic production, fire and fire water United networks, verifies what is fire fighting calculation of water flow rate of domestic and production needs, the maximum consumption of water, without taking into account the consumption of water spraying, showers and floor washing.
71. when tap network hydraulic calculation at the sanitary technical devices, as well as at the farthest and highest placed placed in fire hydrant must ensure that this annex 3 et seq pressures.
72. If there are several mains input, hydraulic calculation must take into account that one of the introduction of trips. If you have two input, each of them 100%, but should be provided if you have more input,-50% flow rate.
73. The internal pipe diameter tap to set that allows maximum use of guaranteed water pressure in the external networks. Building a parting sacilpot the network diameter must not be less than the diameter of the biggest riser. Shower connections must follow this paragraph 92 et seq conditions.
74. Water riser diameters section nodes determined pursuant to this paragraph 24 et seq these conditions and by using the coefficient 0.7.75. Allowable water flow speeds which depend on the material of the pipeline, is set in annex 6 of this et seq. The sprinkler and drencher systems water flow rate must not be more than 10 m/s. 76. Pressure loss in the pipeline stages determined according to annex 7 to the following formula: (12) 77. Coefficient up is: 77.1. residential and public buildings in the municipal tap-0.3;
77.2. residential and public buildings in the farm and the joint fire-fighting water pipes, as well as the aqueduct networks of production-0.2;
77.3. the joint production and distribution networks of fire-0.15;
77.4. fire-fighting water-0.1.78. pressure losses section junctions is defined by the following formula: (13) the factor f is: 79.79.1. municipal water systems-0.5;
79.2. the joint municipal and fire water systems-0.3. IX. Hot water tap network calculation

80. Hot water tap network hydraulic calculation, taking into account water circulation flow rate (l/s), according to annex 8 shall be carried out according to the following formula: (14) 81. Hot water circulation flow rate is determined by the following formula: (15) 82. Sizes and (b) specify the Qh: 82.1. systems that are not designed for water circulation, stāvvado-line and dividing network if Dt = 10 ° C and b = 1;
82.2. systems that are designed for the supply of stāvvado water circulation and circulation riser resistance is variable-if Dt = 10 ° C and b = 1;
82.3. systems with the same resistance section junctions or stāvvado,-from main pipelines of the inlet to the circulation of the riser, if Dt = 8.5 ° C and b = 1.3;
in one section of 82.4 node or riser-inlet pipelines together with upper distribution if Dt = 8.5 ° C and b = 1.83. pressure losses from the hot water tap steps down: 83.1. Despite pipe overgrowth,-in accordance with this paragraph 77 et seq;
51.7. taking into account the pipe,-by overgrowth (12), where there is: 83.2.1. inlet and circulation split pipes-0.2;
83.2.2. pipes Assembly and heat riser with towel dryers-0.5;
83.2.3. the riser without towel dryers and circulation-0.1.84. riser levels water flow rate shall be determined in accordance with this paragraph 75 et seq.
85. the pressure loss in the Circulator inlet and the pipelines of the water heater until the outermost riser on each system node or loop the various nodes must not differ by more than 10%.
86. If it is not possible to respect this in paragraph 85 et seq requirements, choosing a circulation pipeline diameter, requires automatic flow rate regulators valves or diaphragm.
87. It is acceptable to use a diaphragm, the diameter of which is defined by the following formula (but it may not be less than 10 mm): (16) 88. Systems Section junctions or stāvvado is the same water pressure loss, inlet and circulation network split the total pressure loss of water from the first to the last riser must be at least 1.6 times greater than the pressure loss section node or riser, if circulation of so-called koeficien dispersion b = 1.3.89. circulating diameter riser shall be determined in accordance with this paragraph 80 et seq , subject to the condition that the water pressure loss in each section or riser on the circulation circuit of the supply to the circulating split pipes do not differ by more than 10%.
90. The circulating pressure loss in the mode section nodes attached to closed hot water heating systems, can be 30-60 kPa.
91. The loss of pressure in networks that connect to the exposed joint heating and hot water supply systems, shall be determined taking into account losses district heating circulation lines, and the circulating mode that losses must not be greater than 20 kPa.
92. If the shower room is more than three shower strainer, inlet ducts or sacilp designed by the lecturer attachment type.
93. Zonēt water supplies in the area allowed the top gravity circulation during the night.
X. the cold water tap networks 94. If the water supply may be allowed breaks and is installed in up to 12 fire hydrants, internal cold water tap in the system water network can be strupzar, in all other cases, the necessary networks serves.
95. Two or more input needed: 95.1. the buildings housed more than 12 fire hydrants;
95.2. residential buildings, which is more than 400 apartments as well as cinemas, theatres and clubs, where the audience Hall, more than 300 of the sites;
95.3 the sprinkler and drencher system., if it is more than three management node;
95.4. the sauna where is 200 and more;
95.5. laundry, with a capacity of two tonnes or more dry laundry in one shift.
96. If a building has two or more input, you add the external network of different looped. External network between input requires a damper or other noslēgarmatūr.
97. If the building requires pressure pumps, raising input before connecting them and the damper shall be provided to ensure the water supply of any type.
98. If the internal water network has multiple input and water meter nodes, one-way valves shall be provided.
99. In some cases, if the water meter is provided in the node, check valve is not fitted.
100. The distance from the input to the sewage release in the horizontal direction must not be less than 1.5 m, if you enter a diameter not greater than 200 mm and not less than 3 m, if you enter a diameter greater than 200 mm. 101. key in turn places shall be provided for anchor support or introduction, if pipe connections are not able to withstand the water pressure dynamic forces.
102. If the input passes through the basement wall, between the pipeline and 0.2 m gap to leave the buildings, which aizdrīv with a flexible water and gas tight material (wet soil will need a seal). Water can enter to insert the apvalkcaurul.
103. The residential and public buildings in sadalošo internal tap networks usually placed beneath the floor, cellars, technical floors and attic.
104. If the building is not in the attic or basement and is not permitted in the open tube placement, sadalošo internal tap networks deploys underfloor channels and provides enough remontlūk. Channels and tunnels of the deployment pipeline over electric cables is not permitted.
105. The plastic pipelines are allowed to construct sanitary technical open spaces, basements and attic if there not in the warehouse and the staff room.
106. The niche that deployed plastic piping, this is in accordance with the enclosed et seq., 243.2. section 243.1.
107. Plastic Pipe placement technical channels and tunnels below electric cables is not permitted.
108. sadalošo internal tap networks production buildings are commonly deployed to open by walls, beams, columns, farms, as well as under the hood. If this is not possible, tap sadalošo networks deploys technical channels or tunnels with other inženiertīkl, except for the pipe, through which move flammable, combustible or toxic it d rum or gas. Potable water pipes shall be placed above the sewer. Technological equipment levels leads to place the floor constructions.
109. Technical channels and tunnels in cold water tap pipes placed below the hot water and steam pipes and provides insulation.
110. A horizontal novietotaj internal water pipes need at least 2 ° inclination in the direction of the tukšošan site.
111. Technical channels, mines, tunnels, cabs and rooms with increased humidity placed tubes provided with insulation against condensation.
112. In rooms where the cold water tap, air temperature must be higher than 2 ° c. If this is not possible, take the appropriate steps to not freeze the pipes.
XI. Hot water tap networks 113 K arst tap water project in accordance with this paragraph and of the 94 et seq. 111.103-point.
114. Hot water tap in the system of the higher points of the bleed necessary equipment. Vent can also be performed from the top position distribution for water faucets. Lower points must be emptied.
115. All inlet and circulation pipelines (except Rams to the sanitary technical devices) provide thermal insulation.
116. The design of the pipelines, to take into account the thermal extension and, if necessary, compensators must be used.
XII. Pipelines and fittings the cold water tap 117. Cold water pipes and fittings must be from the following materials: 117.1. potable water pipes-from materials, which is a quality certificate for contact with drinking water;
117.2. technological needs-to-use water pipes-depending on the water quality requirements.
118. The pipes can be weld flange, threaded, that CAP, socket, cover, o-ring, brazed, valcēt and glued connections. Building the internal water pipeline materials and use the connection established by this annex 6 et seq. Galvanized steel pipe threads need be covered with paint, which is 94% of the zinc dust. These pipes must not be welded to the shelter.
119. (A), (B) and (C) explosion and fire risk categories of premises pipelines from combustible materials, as well as pipelines that provide fire-fighting water supply, must be secured against fire.
120. Holding and drinking water pipes in the United water and water distribution fittings working pressure calculation, which shall not be less than 600 kPa, but fire and holding water and fire joint water-pressure that is not less than 1000 kPa. Production building hydrogen svado pipe and fittings n calculated on the working pressure corresponding to the technological requirements.
121. the internal tap networks of noslēgarmatūr need the following locations: 121.1. each entry;
121.2. sacilpot network, to ensure at least one the loop part off repair;
121.3. sacilpot production in the cold water tap on the network to ensure bilateral water equipment, which is not allowed in the water outage;
121.4. stāvvado, which installed five and more fire hydrants;
121.5. sai mniecīb and stāvvado of the production of the aqueduct network three and higher buildings;

121.6., which connected at tappings on five and more water distribution;
121.7. from maģistrālaj at tappings on lines;
121.8. each apartment or hotel room input;
121.9. the toilets flushing tank inlets, flushing faucets, local sildītājo and on the block at tappings on showers;
on buildings at tappings on 121.10. sections and section nodes;
121.11. before external watering taps;
121.12. before special devices and apparatus, if it is necessary;
121.13. fire riser in the Middle septiņstāv and higher buildings.
122. Noslēgarmatūr ieprojekt the sacilpot of the riser on both ends to ensure water supply in both directions of the loop.
123. ensure access riser noslēgarmatūr at any time. Riser noslēgarmatūr must not be fitted in rooms where it is possible for the space of absence the operator.
124. If noslēgarmatūr is installed on the flat, at the fork of toilets flushing tank not be allowed ot it.
125. in the introduction to Noslēgarmatūr may not be provided if it is building a water meter node.
126. Noslēgarmatūr closing quickly (for example, konuskrān, ball valve), the notional diameter must not exceed 50 mm. 127. Where not allowed water flowing in the opposite direction, one-way valves in the ieprojekt.
128. If the fixture with a diameter of 50 mm and greater is installed higher than 1.6 m from the floor, do not need the bridge crew.
129. the 150 mm and the diameter of the smaller fitting service to 3 m in height can use mobile ladders, platforms or ladders stairways, which slope not greater than 60 °, the compliance with the relevant safety regulations of work.
130. The drinking water fountains and soda-water rigs located not more than 75 m from the production sites.
131. the automatic pressure regulator required for buildings with individual farms and water fire-fighting water system tap ievado and drinking water feed pipe that connected behind the fire pumps, if the pressure is greater than 32 and 33 of this et seq., paragraph.
132. the pressure regulator, if necessary, may be provided in separate buildings or parts thereof and individual apartments.
133. prior to distribution of water taps may be fitted with a diaphragm.
134. the introduction of the building pressure regulator placed behind the water meter or pressure of node, noslēgarmatūr promotions, and behind the pump pressure regulator shall be noslēgarmatūr. To control the pressure regulator's job before and behind it you need a pressure gauge. Push e na regulator flat type valve placed behind.
135. Residential waste Chambers be watering tap, which leads to the cold and hot water. Desmitstāv and the highest building in the room you will also need a sprinkler.
136. Watering valves are required in the following locations: 136.1. work clothes wardrobe, if the production process is messy;
136.2. in public toilets;
136.3. toilets, with at least three toilets;
136.4. laundry, with at least five hand washbasin;
136.5. in rooms that require wet cleaning;
136.6. external wall niches or in the grave at the home of every 60-70 m along the building's perimeter.
137. where the buildings are in hot water, watering the taps supplied cold and hot water, with the exception of 136.6. this subparagraph et seq places if the yard is not for fat tray.
XIII. Pipes and fittings for hot water 138. Hot water pipes, fittings and equipment must be heat resistant. In the open in joined heating and hot water supply systems can be used, if the steel tube diameter greater than 150 mm. 139. Hot water tap in the system check valve is required in the following locations: 139.1. hot water pipeline stages, from which water runs into the block jaucējkrāno;
139.2. circulation of the district heating nodes run before the thermostat;
139.3. circulation runs before the connection to district heating in open joined heating and hot water supply systems;
139.4. circulation and cold water tap before connection or transmission of water heaters to warm the water source.
140. the Noslēgarmatūr project in accordance with this 121 et seq., 128, 135 and 136 of the..
XIV. The water flow rate measuring device for recording 141. Water needed for hot and cold water meters, the building or plumbing ievado network nodes.
142. Water meter for individual consumers in public, residential and industrial buildings shall be provided, if the water flow rate is greater than 0.1 m3/h. 143. Water meter diameter choice according to the average of water consumption per hour maximum water consumption per day (shift), which must not be greater than the manufacturer's technical regulations for water consumption, and rated in accordance with this paragraph 144 et seq. Wing type water meter diameter of the guide can be selected by this annex 9 et seq.
144. Water meter check: 144.1. pressure loss maximum flowrate time of one second. Wing type water meter for pressure loss must not exceed 25 kPa and the type of water turbine meters-about 10 kPa;
the loss of pressure 144.2. maximum flowrate time of one second, in the light of the fire water flow rate which must not be greater than 100 kPa.
145. The Special water meter diameter shall be determined in accordance with the manufacturer's specifications.
146. where it is not possible to choose ie water meter, which is within the range between the minimum and maximum water consumption per hour, select the combined water meter or more parallel connected to the water meter with a smaller diameter.
147. Water meter to water to enter the premises shall be provided to the external walls of buildings or near easily accessible location and natural or artificial lighting and the air temperature is below 5 ° c.
148. Hot water flow rate is measured with the nodes heat cold water meter that is set up before water heaters.
149. in joined the open heating and hot water supply systems water meter shall be arranged to supply the wire behind the mixer and on the total circulation.
150. If the water meter is not possible to place a building, it can be placed in the yard special aka.
151. On each side of the water meter project in straight pipe stages according to the manufacturer's requirements and noslēgarmatūr, as well as the drain cock between the water meter and valve (latch) on the side of the consumer. If necessary, you must set up an etr manom.
152. The cold water meter node is required if the building of by-pass has one input, as well as if the water meter is not intended for fire water flow rate measurement. To pass the required valve (Gate), which sealed in the closed position. If the water meter is not intended for fire water flow rate measuring, to pass the necessary elektroaizbīdn that automatically open when the fire pumps are switched on.
153. The water ievado with a diameter of 50 mm and smaller, cold water meter node may not be pass, if the building does not fire if the aqueduct and water supply are allowed breaks. Hot water meters pass is required.
154. If residential buildings in the neighborhood are the common water supply system, emergency relief or fire water consumption during hot water supply can not predict if an automatic hot water supply system of fire-fighting water consumption off-line.
XV. The pumping equipment 155. Pump units are required, if the water supply systems independently or intermittently cannot provide the required pressure or if in centralized hot water supply system in need of forced circulation.
156. the type of pump units and its mode of operation is chosen in accordance with technical and economic considerations, taking account of the following variations: 156.1. pumps working continuously or periodically without regulatory tanks;
156.2. pumps, whose capacity is greater than or equal to the maximum consumption of water per hour and working in temporary mode again with hidropneimatiskaj pressure tanks (shower) or the volume of water tanks;
156.3. pumps, which capacity is less than the maximum consumption of water per hour and working continuously or periodically along with the volume of water tanks.
157. The pumping equipment household, fire and circulation system needs are commonly deployed to boilers, water treatment facility, or the heat element.
158. the pumping equipment (except fire pump installations), located below and adjacent to the apartments, the children's rooms in children's pre-school institutions, school classroom, hospital wards, audiences and similar premises, the total noise level must not be higher than 30 decibels.
159. The fire pump units with or without hidropneimatiskaj pressure tanks (shower) can be deployed to the building's basement, first floor and technical floors. If the space does not match the required degree of fire protection, they must be separated from other parts of the building by fireproof walls (partitions) and space divisions, jābū t and provided with separate heated exit, staircase or hallway.

160. the spaces in which the hydro pressure tank (shower) must not be co-located premises is possible mass gatherings of people (50 people or more), such as medicines, stage, wardrobe.
161. Fire pump installations is prohibited to place buildings, where the staff was absent at the power supply.
162. the compact pumping equipment with hidrostat or hydropneumatic pressure tank (shower) to 50 l volume can be deployed directly to the place of consumption.
163. The pumping equipment used in residential neighbourhoods or production needs the project in accordance with the Latvian et seq of the LBN 222 on water supply, external networks and structures.
164. The pumping equipment that works without Jet break, do not need sanitary protection zone.
165. the production needs of the pump units are usually placed directly at the place of production. If necessary, they must provide a safety fence.
166. Domestic and production needs to use the pump capacity of the equipment must be: 166.1. pumps work without water volume control tanks-not less than the maximum consumption of water per second;
166.2. pumps, working together with water or pressure tanks hidropneimatiskaj (shower) and the pumps working again, temporarily-not less than the maximum consumption of water per hour;
166.3. If pump maximum pressure hydropneumatic tank used (shower) or the volume of water tank,-in accordance with this et seq.
167. The pumping equipment in spiedienaugstum, taking into account the minimum guaranteed entry spiedienaugstum, is defined by the following formula: (17) 168. If necessary, check the system pressure minimum water consumption, taking into account the spiedienaugstum input.
169. Pumping Plant pumps usually engage in parallel. If the pressure fluctuations before them are greater than 200 kPa and water volume regulation, preferably tanks are not interconnecting circuits of series pumps with automatic control depending on the required pressure.
170. When the pressure in the external network is less than 50 kPa before the pumps require making tank capacity shall be determined in accordance with this et seq.
171. If the breaks are not allowed in the water supply, the number of the spare pump shall be determined in accordance with Latvian et seq of the LBN 222 on water supply, external networks and structures.
172. in hot water supply system in the circulating pump of the reserve is not required.
173. Spiedvad at each pump requires a one-way valve, pressure gauge, but noslēgarmatūr and sūcvad-noslēgarmatūr and a pressure gauge.
174. If there is no pressure in the sūcvad, noslēgarmatūr is not required, but is used to measure manovaku-mmetr.
175. The pumping equipment to ensure against the total allowable noise levels being exceeded.
176. Pump equipment serving the domestic, industrial and fire-fighting systems, are necessary for the security of energy supply of the following categories: 176.1. If fire water consumption is more than 2.5 l/s, as well as pumping equipment that breaks are not allowed-I category;
176.2. If fire water consumption 2.5 l/s 12-16 storey residential buildings with a total fire flow rate 3 l/s, as well as pumping equipment, which permitted the temporary breaks, and they are enough to be able to switch to a backup power source-category II.
177. If it is not possible to ensure power supply safety class I pump equipment power supply from two independent power sources, it may be possible to supply one power supply, if the various 0.4 kV lines and two different two-transformer substation transformer or two closest one transformer substation.
178. Where it is not possible to ensure sufficient supply of pump units, installed a spare pump with internal combustion engines. Such pumps are not installed in the basement rooms.
179. All types of water supply systems, pump equipment must be manually, or automatic control of distance. If the pressure increases pumping equipment is automatic control, it must: 179.1. the automatic switch on the pump and stop depending on the pressure in the system;
179.2. spare pump automatic power on working the pump in the event of an emergency;
179.3. at work wide signal to the pump in case of emergency.
180. Fire pump installations 50 m and the highest buildings, as well as audience halls, Conference and Conference halls and buildings that have sprinkler and drencher systems designed with the hand, distance and automatic control.
181. If the pump has automatic fire or management requires continuous pressure testing the system.
182. Fire fighting can use municipal needs to use pumps if they are designed for automatic pressure test.
183. With automatic distance control and actuation of fire fighting pumps and sprinkler system activation drencher or automatically open the damper, located on enter the pass.
184. The distance control of fire pump starting button placed in the fire in the oven. When these pumps are switched on, a signal is given to the officer or operating personnel. Start button, you can use the hydraulic signal transducer, acting when at v er hydrants.
185. If water is pumped from the tanks, normally pump placed under the tank water level. If the pump is positioned above the water level in the tank, you need pašsūcoš pump or pump filling machine with water before starting the pump. You can also use iegremdējamo pumps.
186. the pumping of water from the tanks require at least two sūcvad with the full system capacity of each tank. One of the sūcvad may be provided, if not a spare pump or pump at least two jobs.
XVI. Spare capacity and adjust these volumes 187. Spare capacity and regulatory capacity (for example, watertower, receptacles, the pressure receptacles hydropneumatic (shower), thermal battery) capacity must be sufficient to balance the water consumption. If necessary, the appropriate fire-fighting water tank stores reserve provided for use for other purposes. Fire water reserve storage is not recommended to use the hydro pressure tank (shower), but it must ensure minimum water reserve that guarantees fire pumps of t u actuation of the pressure transducer.
188. Zero tank-battery you can use sauna, laundry or similar location where the expected large short-term water consumption.
189. the production company shower in rooms that have 10 or more shower strainer, zero tank-battery, if necessary from an external network, it is not possible to provide the required amount of water.
190. the regulatory capacity of the tank (m3): 190.1. pressure hidropneimatiskaj pressure tanks or tanks (shower), if the pump capacity is greater than or equal to the maximum consumption per hour: 190.2. zero tanks and pressure tanks when pumping capacity is less than the maximum consumption per hour: (19) 190.3. heat accumulators, if heater does not provide maximum capacity per hour: (20) 191. Regulatory volume coefficient: 191.1. If pumping equipment (water heaters) runs continuously with a variable capacity maximum water consumption per day (shift) or if the pumping equipment running long -According to the following formula: (21) if pumping equipment 191.2. (water heaters or heat generator) works continuously and evenly (maximum consumption hours)-according to the following formula: (22) 192. If the calculation is made of the heat accumulators (21) and (22) in the formula in the j1 and j2 193. down at the 10 and 11 et seq. of the annex.
194. Water dispersion coefficient per hour is defined by the following formula: (23) 195. Pumping machine water supply dispersion coefficient per hour is defined by the following formula: (24) 196. heat dispersion coefficient of consumption per hour maximum hot water consumption per hour is determined by the following formula: (25) 197. heat supply dispersion coefficient of hot water supply needs of the maximum consumption of hot water per hour is determined by the following formula: (26) 198. Apart from aprçíina without pressure tank-battery capacity must be not less than (as a percentage of consumption per hour) : 198.1. saunas-150;
198.2. residential buildings, hostels, hotels, and hospitals-100;
198.3. laundromats, where productivity is up to 3000 kg dry shift,-75;
198.4. laundromats, where productivity is higher than 3000 kg of laundry, change-50;
198.5. in industry 10-20 shower strainer-200;
198.6.21-30 in industry shower strainer-300;
198.7.31 in industry and more shower strainer-400.199. Off-site hot water supply system of heat accumulators are not required, except where necessary to accumulate the water margin (for example, saunas, laundry).
200. sdzēsīb Fire water reserves amount to at least 10 minutes of fire hydrants from peak water demand during domestic and production needs. This fire water reserve can not predict if is guaranteed automatic fire pumps on.

201. Regulatory tanks capacity (m3): 201.1. hidropneimatiskaj pressure tank (shower): (27) 201.2. the zero and pressure tanks: (28) 201.3. heat accumulators: (29) 202. the maximum and minimum pressure ratio is: (A) 202.1. equipment that works in priekšspiedien mode-0.8;
202.2. equipment with a pressure of up to 50 m,-0.75;
202.3. equipment with push-over 50 m, now-0.7.203. Regulatory capacity reserve factor B is: 203.1. If pump equipment working again in short mode,-1.2-1.3;
203.2. If pumping capacity is less than the maximum water consumption per hour-1.1;
203.3. heat accumulators-1.204. pressure tank location height and minimum pressure in pressure tank hydro (shower) must provide to the consumer the required water spiedienaugstum.
205. All types of tanks must be made from non-corrosive materials. If used for corrosive materials need insulation and anti-corrosion of the tank to be used on the inside, which does not lower the quality of drinking water.
206. the pressure tank and the tank zero-batteries deployed in the warm ventilated room, which height is at least 2.2 m. load-bearing structures of the premises must be of non-combustible materials. Emergency ground tanks must be waterproof pads or waterproof flooring with a ladder. The distance from the tank to the room's walls must be 0.7 m, ismaz v, up to the ceiling-m and 0.6-0.5 m to pad. 207. zero the pressure receptacles and tanks-batteries are in need of the following tubes and devices: 207.1. the water supply tube with pludiņvārst, before which shall be noslēgarmatūr;
207.2. entraining;
207.3. overflow tube;
207.4. emptying tube (with the noslēgarmatūr) that is added to the overflow pipe;
207.5. devices for protection against water condensate criminal space;
207.6. devices that ensure water circulation, if drinking water tank does not change more frequently than every 48 hours;
207.7. ventilation tube;
207.8. water level indicator on the control panel for alarm.
208. The water supply pipe and the pipe can be combined if, before entering the water feed pipe in pipe shall be the total one-way valve and noslēgarmatūr.
209. If the tank is not water level warning device required signālcaurul with a diameter of 15 mm, which adds 5 cm under the overflow pipe and drain in the sink in the room where the workers or the supervising personnel.
210. the Hydro pressure tank (shower) equipped with the supply pipe and the tubs, drain pipe and the safety valve. If the vessel does not require additional membranes, water level indicator and air filling and adjustment devices.
211. Reverse water supply tanks to be deployed outside the building. The project in accordance with the Latvian et seq of the LBN 222 on water supply, external networks and structures.
XVII. 212. Sewage system depending on the functional usage of the building and collection requirements designed such internal sewerage systems: 212.1. municipal waste-sewage system sewage discharges from sanitary-technical devices;
212.2. production waste water sewage system-production waste water discharges;
212.3. Joint waste water sewage system-municipal wastewater and industrial wastewater discharges, if it is possible a common transport and treatment;
212.4. internal rainwater gutter-rain and snow melt water drainage from the roof of the building.
213. the production buildings can be designed more for waste water sewage system, which differs in content, temperature, aggressiveness and other indicators, when mixing is not permitted or is not useful.
214. individual production waste water sewage and municipal waste water sewer network must be designed: 214.1. production buildings, production of which the effluent shall be treated or processed;
214.2. If sauna and laundry siltumuztvērēj, shall be provided in the construction of local water treatment installations;
214.3. grocery store, catering and food processing plant buildings.
215. the technological waste waters, technological tanks after cleaning sludge, toxic products and reagents are prohibited from entering sewers, but they must be channelled in a special tank for further disposal or decontamination.
XVII. technical devices and Sanitary sewage receivers 216. If the municipal sewage or industrial sewage add to the sanitary-technical devices or receivers, which do not enter into the design of the hydraulic (siphon), hydraulic seal (siphons) placed under the devices or receivers.
217. In one room located hand mazgātņ Group (no more than six washbasin) or vessel basin with multiple compartments can be one single with a diameter of 50 mm the siphon, which can be cleaned. Each production sinks (bathroom detergent) compartment for the fitting of the siphon with a diameter of at least 50 mm. 218. Hydraulic seal is not required in the production process is not contaminated or only with mechanical pulp (for example, pollution, turbidity) contaminated waste water of production if it omits an independent sewer network.
219. It is not permissible for a number of different rooms put sanitary technical devices one siphon.
220. The slide tray water discharge may be fitted with not more than six showers: 1-2 showers need trap with a diameter of 50 mm, but several showers-with a diameter of 100 mm. 221. Special production waste water trap type and number is determined by the technological part of the project.
222. Every klozetp od equipped with individual flushing tanks taps or flushing.
223. The schools, hospitals and medical centres toilets toilets flushing is recommended be equipped with devices that operated with the pedal.
224. In public buildings, which keeps many people, as well as public toilets and toilets flushing of urināl can be made of the total tank, if the process automation.
225. The male toilet compartments on the wall or placed on the floor urināl.
226. The kindergarten, as well as the mainstream school and boarding school students the latest class to be fitted with toilet facilities of sēdpod children.
227. The public and production buildings, female staff hygiene indoors requires a bidet.
228. some of the above divisions deployed in shower rooms, as well as industrial and sports structures in municipal spaces recommended shower water scold.
229. the gangways are required in the following locations: 229.1. hotel number in sanitary knots, sanatorium, camping, tourist bases, technical premises, sanitary toilets that have three or more women's toilets, staff hygiene, and laundry room with five and more hand washbasin – with a diameter of 50 mm gangways; 229.2. residential waste Chambers-trap with 100 mm diameter; 229.3. in rooms where you need the floor damp maintenance or production conditions require it -in accordance with the technological task;
229.4. shower in rooms that have three to eight shower-slide with a diameter of 50 mm, but in rooms that have more than eight shower-trap diameter 100 mm. 230. Gangways do not need housing and nursing home of HEIs in bathrooms.
231. Floor slope to the shower rooms must be 10-20 º tray or trap. Size and tilt trays must ensure the flow of waste water purification and filling speed not more than 0.8 from tray depth.
232. Sania out of technical devices are definitely the height of this annex 12 et seq.
XIX. the sewerage network in the sewage discharged by 233. closed by gravity pipes.
234. the production waste water with no unpleasant odours and harmful gases and emit vapours can be fed through the open gravity trays, if it is technologically necessary. In that case, shall be the total hydraulic seal.
235. Sewerage network spans built in a straight line. Sewage pipeline construction direction changes and the appropriate device adds to the connecting parts. It is prohibited to change the slope of the pipe between the connections.
236. under the ceiling of the premises, cellars and underground will be novadošo the technical pipeline adds riser with a sloping krustgabal and tee.
237. N ovadoš add the pipe riser from the two-sided bath one level only with a sloping krustgabal.
238. Sanitary technical devices, placed on the floor in different apartments, must not add to the total duct.
239. Use it for krustgabal, sno placing it in the horizontal plane, is prohibited.
240. According to the strength and stability against corrosion requirements sewage system, the following pipes: 240.1. gravity systems-ķet, stainless or steel, chemically resistant plastm sharp, glass, concrete or reinforced concrete;
240.2. pressure systems-pressure ķet, chemically resistant stainless or steel, copper or plastic.
241. building internal drain pipes used materials and their connection are set in annex 6 of this et seq.
242. the internal sewer networks usually builds:

242.1. openly-sanitary rooms, technical, the Underground cellars, units, utility room, hallways, technical floors, attic and special network deployment for premises, shall be affixed to the building structures (such as walls, columns, ceiling, farms) or strengthening on special supports;
242.2. cover-building shelter, beneath the floor (ground, channels), panels, wall cladding, in the box below on the walls piebūvēt cans, suspended ceiling, vertical shafts and floor structures fitted Luke opposite audits.
243. by using plastic drain pipes, must adhere to the following rules: 243.1. risers built a cover for mounting the shaft in the communications box, channels and boxes, which the containment structures are of non-combustible materials, except for the front panel that provides access to the mine;
243.2. open the front panel door or removable Panel is authorized to be made from combustible materials, if the use of polyvinyl chloride pipes, and from poorly combustible materials, if the use of polyethylene pipes. Front panel is allowed to use combustible materials, if the use of polyethylene pipes and door is not opening. To access the fitting and audits must be open hatches with covers, k ur area is not greater than 0.1 m2;
243.3. plastic pipelines are allowed to construct sanitary technical open spaces, basements and attic if there not in the warehouse and the staff rooms;
243.4. where riser crosses divisions throughout the thickness of the Division into the cement mortar, but pipe wrapped with sheet waterproofing material;
243.5. not less than 8 cm above the shelter novadoš the riser to the horizontal pipe shall be provided with pretugun protection (the circumference), which after the load resistance, viengabalainum and insulation ability is not less than 45 minutes in accordance with the Latvian et seq of the LBN 201-96 "fire safety rules";
243.6. taking into account the possible workload, are allowed to tubes incorporated ground floor.
244. construction of internal sewerage network is prohibited in the following locations: 244.1. low ceiling, walls and floor in the living room of the dormitory, kindergarten, hospital wards, medical offices, dining hall, administrative offices, the building work Chamber, audience halls, libraries, training, audiences, transformers and power distribution control room automation, supply ventilation mode the cameras and special production facilities;
244.2. low ceiling (or cover) kitchens, catering company, trading halls, food products and valuable goods warehouse spaces, lobbies and rooms, which is a valuable artistic design, production premises built in ovens, the production of which is not permitted, as well as the moisture from entering the premises, which produced valuable anti-m and materials whose quality falls if they get wet.
245. the supply lines of the camera premises permitted gutter overflows riser placement outside air intake area.
246. Catering establishments, hospitals and medical offices the Court permitted sewage discharged into the wall and floor construction for sanitary technical devices and equipment that are required to deploy in the areas concerned.
247. Municipal and industrial wastewater sewer gear (also from other consumers through requirement), catering for the production, storage, trade, sales and utility room you can deploy boxes and installation audits.
248. Sewerage network requires the following attachments that Jet break is at least 20 mm from the surface of the receiving Castle 248.1. uv: technological equipment for the manufacture of food products and processing;
248.2. equipment and sanitary engineering devices catering facilities for washing dishes;
248.3. basin and potable water tank overflow and discharge pipelines.
2 49. Sanitary technical devices in the pipeline should be novadošo over the floor (hospital and medical offices in the Court it covers and provides waterproofing).
250. The pipeline through which the County's aggressive and toxic waste, fitted under the floor channels that built up to the level of the floor and covered with removable plates, or, if there is appropriate justification, the caurstaigājamo tunnels.
251. Each explosive must separate the plant's sewage output, with autonomous ventilated riser and hidroaizvar according to the safety requirements and in accordance with the relevant laws and regulations. Production waste water containing combustible and flammable liquids, it is prohibited to add municipal wastewater and rainwater gutters.
252. I ekšējo of municipal and industrial sewage network, which conducts urban waste water sewer network, external ventilated through the riser, which stages a deployable air exhaust in the following height: 252.1. above the flat roof is not operational-0.3 m; 252.2. above the sloping roof-0.5 m above the operational 252.3. roof-3 m above the savācoš of 252.4. airing of the shaft surface-0.1 m. 253. Sewer air exhaust riser steps above the roof placed at least 4 m (horizontal) away from open Windows and balconies If they are at the same level or a higher level in relation to the air outlet and at least 8 m from the supply lines. Airing riser of the caret is not required.
254. it is prohibited to connect the drain riser lines of air exhaust stages with room ventilation systems and chimneys.
255. in the case of the need To observe the movement of waste from technological equipment on the pipeline, which conducts urban waste water, jets break or be a checkbox ´.
256. Municipal and industrial sewage networks require revision or locking Stud cleaning in the following locations: on the bottom of riser 256.1. and top floor and above indents, as well as the riser sections located in the cellars;
426. a five-storey residential buildings and higher-at least every three floors;
256.3. novadcauruļvad stage start (yield stress direction), if the number of devices that have three or more and they are not being used for cleaning the Earth;
256.4. the network turns-a change in flow direction and the stage of the pipeline could not be cleared through the other stages at t.
257. the horizontal sewerage network stages the largest distance between the audits, or locking Stud cleaning for table 4.
258. Sewer pipeline minimum installation depth must be such as to protect the tubes from the ruin of the permanent or temporary assignment of effects. If the pipeline is located indoors, they must be protected from mechanical damage, or frost.
259. the sewerage network, through which the waste water discharge, which does not emit an unpleasant odor, harmful gases or vapours, can construct the manhole production premises. Manhole on internal production waste water sewer networks with a diameter of 100 mm and more is necessary: 259.1. pipeline yaw;
259.2. where a change in the slope of pipelines and DIA meter;
259.3. tappings and long straight stages in accordance with the Latvian et seq of the LBN 223 for sewerage, external networks and structures.
260. the production wastewater sewer network, through which the waste water discharge, which emits unpleasant smells and harmful gases or vapours, manhole installation options and their construction shall be determined in accordance with the relevant sectoral et seq.
261. Manhole installation on municipal sewer networks inside buildings is prohibited.
table 4 Distance between audits and locking Stud cleaning depending on the type of waste water contaminated municipal and large ra? o? an ra? o? an peldviel of pipeline Cleaning waste water effluent quantity rigs the diameter and type of rainwater containing ra? o? an effluent of less than 100 mm 16 m 12 m 10 m of less than 100 mm audit 10 m 5 m 6 m to clean up locking Stud 100-150 mm 20 m 15 m 12 m 100-150 mm of the audit 15 m 10 m 10 m to clean up locking Stud
 
200 mm and over 25 20 15 audit notes.
1. Low ceiling, built-in sewage network suspended lines desired locking Stud cleaning that output to a higher figure, placed here in the floor or open (depending on the functional use of space).
2. Audit and clean the locking Stud deployed to areas where it is possible to conveniently serve.
3. the underground sewer pipes, the audit built into wells with a diameter of at least 0.7 m Oh bottom slope must be at least 5 º audit flange.
263. Sewerage network outputs from the basement rooms must be at least 20 ° inclined.
264. The basement room where the sewer pipes, with bezail walls must be removed from the premises of the warehouse where you store products or valuable belongings. May be provided by hand-operated latch, if the basement room service staff keeps continuously.
265. The output length of the riser, audit or cleaning up locking Stud manhole axis must not be greater than specified in table 5.
table 5 pipeline diameter (mm) 50 100 150 and more output length of the riser, audit or cleaning up locking Stud manhole axis (m) 8 12 15 notes.

1. contaminated sewage and overflows the output length can be increased to 20 m if pipe diameter 100 mm and more.
2. Municipal sewage to output is not possible to place kontrolak before connecting the street sewer network or provide audit installation above the street level inside the buildings must provide for audits where the edge of the well is at least 0.5 m higher than the audit.
266. Output diameter must be calculated. It may not be less than the greater of the respective output diameter riser to be added.
267. The output to the external network to add at least 90 ° (see the waste water flow direction). The outputs can be fitted with following pārgāz: 0.3 m to 267.1.-open-water on concrete drain tray, with flowing turn come into external sewers;
more than 0.3 m 267.2.-cover-up to 45 ° angled riser or pipe in the form of a cross section of not less than pievadcauruļvad cross-section. In that case, you must ensure the drain outlet cleaning from the manhole.
268. Sewage output to 150 mm in diameter may be provided with the free falling in kontrolak or pārgāz in the manhole before connection special Street sewer network.
269. Where output passes through the basement wall or building foundations, make this a referred to in paragraph 102 et seq.
270. the riser adds horizontal pipes at least a 45 ° angle.
XX. Sewer network calculation 271. Sewer pipeline performs the calculation in determining the average movement of the liquid the speed v (m/s) and filled H/d on the condition that you (30) K = 0.5-plastic and glass pipes;
K = 0.6-pipes of other materials.
272. the average rate of movement of the liquid must be at least 0.7 m/s and pipeline stuffing-at least 0.3. If condition (30) can not be executed without sufficient flow rate of municipal waste water pipeline, bezaprēķin stage in which the pipeline is to 50 mm in diameter, must be built with 30 º inclination, but the period in which the pipeline diameter is 75-100 mm,-20 ° inclination. If the pipeline diameter is larger, you must comply with the Latvian et seq of the LBN 223 sewerage, external networks and premises in a condition.
273. If the calculation methodology of the pipeline given the manufacturer's instructions, rules 271 and 272 this. the conditions referred to in the paragraph are not binding, except in conditions of bezaprēķin.
274. the production waste water collecting systems (also in open trays) purification and filling the pipeline will be determined, taking into account the production wastewater pollution transport.
275. the slope of the pipeline must not be greater than 150 º (except in the realm of the sanitary-technical devices, which have a length of up to 1.5 m).
276. Drains riser diameter is determined by table 6, depending on the waste water flow rate calculation, the maximum diameter of the duct and its add angle riser.
277. Sewer risers airing stage diameter must not be less than sanitary engineering devices the largest diameter of the duct.
278. the total airing riser can add more drainage gear. If sewer lines of pipeline combines multiple gear, its diameter is determined taking into consideration the system connected to the sanitary technical devices: up to 100 mm; 120 devices-up to 300 devices-125 mm up to 150 mm devices-1200; more than 1200 devices-200 mm. 279. Combined the horizontal lines of the pipeline must be 10 º riser inclination.
280. where the waste water flow rate is greater than specified in table 6 shall be provided for in riser, sewer additional airing riser that every floor is added to the sewage to the riser or every floor connects two close to sewer risers, which have the same diameter. Additional lines of s tāvvad's must have a diameter of about one size smaller than the diameter of the drain riser.
281. additional airing riser connected to sewers below the last bottom riser sanitary technical devices or move the bevel on the top of the tee, which is built into the sewer in the riser above the floor of the top-most sanitary technical devices an edge or audit.
282. vēdināmo will Not drain riser may be fitted if the building has at least one ventilated riser and effluent flow rate in the relevant stāvvado is not greater than the size specified in table 7. Not ventilated sewer risers must end with the locking Stud for cleaning, which installed krustgabal or tee coupling over discharge from the top-most sanitary technical devices.
283. In buildings no higher than five floors, not the end of the riser where it can insert drains vakuumvārst, if the building is ventilated at least one riser. Vakuumvārst must be located above the top-most sanitary technical devices. In that year (j) generally riser capacity determined by table 6.
284. the production sewage pipelines which discharged waste waters that contain many mechanical impurities (such as slag, metal shavings, lime), the slope is determined by the hydraulic calculation, if the tubes have a self-cleaning and filling speed not less than 0.3. Xxi. Local installations for waste water treatment and liquid waste production, 285. in accordance with the provisions of the waste water discharges may not be discharged to the sewer network or body of water, as well as the production of waste water that is a valuable industry, treating local water treatment plant, which will deploy a given building or next to it.
286. If necessary, chemical reagents used before the evacuation from the laboratory neutralize with laboratory products, and wastewater pH must be from 6.5 to 8.5.287. hospital and Department of infectious waste, as well as the microbiological laboratory waste, which works with 2-4 hazard class cultures, before entering municipal sewer network sanitized.
288. Combustible substance receivers to pievadoš pipes are required for hydraulic seal and exhaust ventilation.
289. Oil receivers ievadāmo sewage sludge or previously treated sand trays.
290. If the effluent is peldviel or other impurities be untouchable grilles-common to the entire sewer system or only for certain waste water if the liquid has impurities for pumps. The bars shall be provided in special containers of adoption, or the well amer k direct channels. Iron rake angle on the horizontal plane of the sewage flow direction must not be less than 60 °.
291. Converters, sand traps, mixer, tuner, oil bars and other rigs, as well as the treatment of municipal and industrial sewage pumping station project in accordance with the Latvian et seq of the LBN 223 for sewerage, external networks and structures.
292. the adoption of the pump equipment tank capacity determined in accordance with the schedule of hours of sewage pietec and pump working mode, in addition, the adoption of a tank pumping equipment that works automatically, you must comply with the condition that the pumps be switched on more frequently, as indicated in the manufacturer's technical regulations, but if pietec's hourly schedule,-to capture volume I set n to 5-10% of the maximum sewage pietec hour.
293. acceptance level shall be indicators tanks, supply-exhaust ventilation and, if necessary, precipitated sludge uzmaisīšan rigs.
294. Making tanks and pumps which pumped the waste water of production that do not emit unpleasant odours, noxious gases and vapours as well as pneumatic pump units are permitted to deploy public and production buildings inside.
295. Making tanks and pumps which pumped household and production waste water containing toxic or quickly rotting pollution or which give off unpleasant odours, noxious gases and vapours, located in a separate building or basement, but if the basement is not a separate heated in-ground floor room or isolation room that has a separate exit to the outside of the staircase or hallway. Pump station equipment in the room a supply-exhaust ventilation.
table 6 riser realm ventilated sewer risers, the maximum capacity (l/s) riser internal diameter (mm) diameter of the Attachment angle 50 55 70 75 85 100 105 125 150 (mm) riser (in degrees) 60 50 90 45 45 90 0.7 0.9 1.6 1.9 2.6 3.8 4.3 6.6 10.3 1.0 1.3 2.4 2.9 3.9 5.8 6.5 9.9 15.4 1.2 1.5 2.8 3.3 4.4 6.6 7.4 11.3 17.6 0.7 0.9 1.5 1.8 2.5 3.7 4.1 6.3 9.8 60 1.0 1.3 2.3 2.7 3.7 5.5
45-70 90-6.2 9.5 14.8 1.2 1.5 2.6 3.1 4.2 6.3 7.1 10.8 16.8 1.3 1.6 2.2 3.2 3.6 5.5 8.5-45-60-75 90 2.0 2.4 3.2 4.8 5.4 8.2 12.8-2.3 2.7 3.7 5.4 6.1 9.4 14.6-1.5 2.1 3.1 3.5 5.3 8.3-45-60--2.3 3.1 4.6 5.2 8.0 12.4-2.6 3.5 5.3 6.0 9.1 14.1 85 90----60-2.0 2.9 3.3 5.0 7.9-3.0 4.4 5.0 7.6 11.8 45----3.4 5.0 5.6 8.6 13.4 100
90-----2.7 3.1 4.7 7.3 60-----45----4.1 4.6 7.1 11.0-4.7 5.3 8.0 12.5-105 90-----3.0 4.6 7.2 60------4.5 6.9 10.8 45------5.2 7.9 12.3 125 90------------60 4.3 6.7--45----6.4 10.0

--------7.3 11.4 150 90-60-6.2-----------45-9.3-10.5 notes.
in table 1 the riser capacity, if the riser has a 50 mm high hydraulic seal. If the riser has a 60 mm high hydraulic seal, flow could be increased by 20%, if the riser has a 70 mm high hydraulic seal,-40%.
2. Capacity calculated for riser height is greater than its diameter 90. If the riser height is less than 90 diameter, capacity must increase ÷ 90D/L times.
296. Small compact toilets behind the manufacture of pumping equipment placed with sealed adoption of municipal waste water tank can be placed in the place of consumption, if equipment is provided ventilation. The following equipment can be connected to four orderlies technical apparatus, also one of the toilets.
7. a table riser not ventilated sewer risers, the maximum capacity (l/s) riser height (m) internal diameter (mm) 50 55 70 75 85 100 105 125 150 1 2 3 4 1.8 2.4 3.9 4.4 5.8 7.8 8.7 12.2 17.3 1.1 1.3 2.3 2.6 3.4 4.7 5.8 7.2 10.2 0.5 0.6 0.8 1.0 1.3 1.7 1.9 2.7 3.8 0.5 0.6 0.7 1.0 1.5 1.8 2.3 3.1 3.4 4.8 6.8 0.6 0.7 1.1 1.3 1.7 2.3 2.5 3.5 4.9 5 6
0.7 0.8 1.0 1.4 1.5 2.1 3.0 7 8 9 10 0.5 0.6 0.6 0.6 0.8 1.1 1.3 1.7 2.5 0.5 0.6 0.6 0.6 0.7 0.9 1.1 1.4 2.1 0.5 0.6 0.6 0.6 0.7 0.8 0.9 1.2 1.8 0.5 0.6 0.6 0.6 0.7 0.8 0.8 0.9 1.3 and 0.5 0.6 0.6 0.6 0.7 0.8 0.8 1.1 1.4 11 12 13 more 0.5 0.6 0.6 0.6 0.7 0.8 0.8 0.9 0.9 0.5 0.6 0.6 0.6 0.7 0.8 0.8 0.9 1.1 note.
Given in table riser capacity, if the riser has a 50 mm high hydraulic seal. If the riser has a 60 mm high hydraulic seal, flow could be increased by 20%, if the riser is 70 mm high hydraulic seal,-40%.
297. Pumping Station noise must conform to this paragraph 15 et seq requirements.
298. to manufacture compact pump equipment or small pumping stations, which allowed breaks, spare pumps are not needed.
299. The pumping unit design with automatic, hands in the distance and the wire.
300. each pump suction pipeline and pressure pipeline requires noslēgarmatūr, but also spiedienavad-one-way valve. Transport of waste water containing sand, mud or other floating particles, the check valve is not necessary for s. XXI. Rainwater drains 301. building rainwater gutters to ensure rain and snow melt water from the roof. If rainwater drains built unheated spaces, pipelines to ensure positive temperature even when the external air temperature is negative.
302. Rainwater drains rainwater or pilnsistēm to connect the external drainage network.
303. If the grounds of unpolluted rainwater can be fed or repeatedly consumed production waste water sewer system.
304. There are ai zliegt a discharge rainwater to municipal sewers, as well as add sanitary technical devices for internal rainwater drainage system.
305. If not installed rainwater sewage, rainwater in the external releases open trays (open release), which is located beside the building, Furthermore, measures should be taken to prevent the leaching of the surface of Earth. If the output is to be an open riser buildings inside, you need a hydraulic seal, from which the winter thaw days water discharged into municipal sewers.
306. Rainwater capture funnels on the roof to be placed, in view of the terrain, the permissible roof catchment area for rainwater capture the funnel and the building structure. The maximum distance between the funnels rainwater capture any type of roofs may not be big on 48 m. 307 ks. Add one riser at different levels-most rainwater capture hopper can if the total calculated flow rate per riser is not greater than the size specified in table 8.
table 8 rainwater riser internal diameter (mm) 85 100 150 200 rainwater riser allowable calculated flow rate (l/s) 6.5 11 18 32 308. minimum slope hanging pipes are 5 º and pipelines laid beneath the floor-this Chapter XIX et seq requirements.
309. The internal rainwater drainage pipeline cleaning required audits, cleansing and locking Stud manhole in accordance with this Chapter XVIII et seq requirements. Audit on the riser in the lower floor and fitted above exemptions, if any.
310. Rainwater capture funnel add the riser with flexible aizblīvēt compensation sleeve.
311. Rainwater flow rate calculation (l/s) of water catchment area are given in table 9, or is determined by the following formulae: 311.1. you the s that the slope is 15 º and less: (31) 311.2. roofs slope is more than 15 º: (32) n-parameter is given in table 9.
312. the calculation of flow rate on one rainwater run-off riser must not be larger than the size specified in table 8, but rainwater capture to calculate the flow rate of the funnel by the type of funnel passport data.
313. The calculation of catchment area, in addition to added to the 30% of the vertical wall of the square, which connects to the roof and rise above it.
table 9 q20 locality n l/s, q5 = 4nq20 l/s ha, ha QST, w, l/s m2 no100 name q20 q5: the Baltic Sea coast Ventspils Kolk 0.57 48.7 107 112 0.51 1.12 0.47 1.07 0.57 50.8 U? Cīrav-0.55 1.21 0.57 54.8 AVA 121 121 107 0.57 54.8 0.55 1.21 Liepaja 0.57 48.7 0.47 1.07 sweet and Stands in the neighborhood : stende 0.68 78.4 0.78 2.01 Kuldiga 0.68 67.2 201 172-187 0.73 1.87 0.67 1.72 Kabil 0.68 72.8 Mounds of sweet 165 187 0.68 72.8 0.73 1.87 0.68 64.4 Riga and Riga 0.64 1.65 neighborhood: Riga 0.72 79.5 0.80 2.16 OGRE 0.72 79.5 216 216 0.80 2.16 Jelgava 0.72 73.8 200 0.74 2.00 central district: 0.66 75.9 0.76 1.89 Ieriku str. 67A, Priekuļi, 189 183-196 0.66 73.2 0.73 1.83 Dzērben 0.66 78.6 0.66 73.2 0.73 1.83 Stāmerien Ranka 0.79 1.96 183-0.66
of 203 210 84.0 0.84 2.10 Lejasciems 0.66 81.3 0.84 2.03 Gulbene 0.66 73.2 183 0.73 1.83 Kos 0.66 84.0 210 0.84 2.10 mālpils 0.66 73.2 0.73 1.83 Gureļ 0.66 78.6 196 183 in Rezekne and Daugavpils 0.79 1.96 neighborhood: Rezekne 0.62 59.1 0.59 1.40 subate 0.62 52.6 140 124 0.53 1.24 Daugavpils 0.62 67.9 160 0.68 1.60 Dagda 0.62 63.5 0.64 1.50 314 150. Rainwater pipes must withstand hydrostatic pressure of clogging , pārpildījum and water ice bound conditions.
315. the internal rainwater gutters used plastic or ķet pipes, respecting this 241-243 et seq., the conditions referred to in paragraph 1. Horizontal piekārtaj lines, if there is vibration loads, you can use steel tubes.
 
Environmental protection and regional development Minister-Minister of agriculture a. Rāviņš annex 1: Cabinet of Ministers of 21 July 1998, regulations No 256 symbols used in Sanitary et seq of the technical devices water consumption per second (total (cold and hot), hot, cold water) l/s (3. and annex 4).
 
 
 
 
 
 




Sanitary technical devices for waste water flow rate l/s (annex 3).
Sanitary technical devices water consumption per hour (total (cold and hot), hot, cold water) l/h (3 and 4).
 
Water consumption is calculated per second maximum (maximum flow rate per second) (total (cold and hot), hot, cold water) l/s.
 
Calculate the maximum consumption of waste water per second (maximum flow rate per second) l/s maximum calculation. water consumption per hour (total (cold and hot), hot, cold water) l/h.
 
The average water consumption is calculated per hour m3/h.
 
Hot water circulation flow rate l/s calculated. calculation of hot water flow rate, taking into account the necessary additional circulation l/s.
 
Rainwater flow l/s calculations.
 
Statutory maximum consumption water consumption per hour (total (cold and hot), hot, cold water) l/h (annex 4).
Statutory maximum consumption water consumption per day (total (cold and hot), hot, cold water) l/dn (annex 4).
Regulatory water consumption average daily consumption (total (cold and hot), hot, cold water) l/dn (annex 4).
 
S anitār technical devices use probability (total (cold and hot), hot, cold water), dimensionless.
 
Sanitary technical devices use probability per hour (total (cold and hot), hot, cold water), dimensionless.
 
The factor that determines the sanitary-technical devices for the duration of the hour, the dimensionless (annex 4).
 
The number of consumers.
 
Sanitary-engineering devices.
 
Consumer type or sanitary engineering devices.
Spiedienaug in tum loss meters of one meter long stage of the pipeline, the flow of overcoming frictional resistance, dimensionless.
 
Hot water heat flow required (kW) maximum and average consumption per hour.
 
Calculation of heat flow loss (kW).
 
Hot water supply system in the circulating factor, dimensionless (annex 4).
 

Hot water circulation coefficient of unevenness, dimensionless.
 
Temperature losses of hot water supply system (° C).
 
Cold water temperature (° C). In the absence of relevant research data, in the summer it can be + 15 ° C water service life in hours (24 hours or shift).
The average yield rate of water pipes (m/s).
Gravity pipe filling, dimensionless.
 
The pipeline calculates the length of the period (m).
 
Sewer work riser height (m).
Local resistance factor, dimensionless.
 
Tank capacity (m3).
 
Regulating the volume of the tank (m3).
Fire water reserve (m3).
 
The relative volume of regulating factor, dimensionless.
Diennak s (Exchange) the maximum hours of water consumption coefficient of unevenness (total (cold and hot), hot and cold water), dimensionless.
 
Pump capacity hours unevenness coefficient of maximum consumption day (shift), at $ bezdimension.
 
Hot water heat flow coefficient of unevenness of hours the maximum daily consumption (shift), dimensionless.
 
Water heaters heat flux calculation of quantity (kW).
 
The maximum and minimum pressure for regulatory capacity calculation, dimensionless.
The regulatory capacity of the reserve ratio, dimensionless.
 
Rainwater catchment area (m2).
 
Pumping equipment production (m3/h).
 
The permissible pump cut the number of times an hour (after the manufacturer's data).
 
Pumping equipment working pressure s.
 
Geometric mean water lifting height (m).
 
Total loss calculation spiedienaugstum (friction and local) (m).
 
Regulatory free spiedienaugstum at the sanitary-technical devices (m).
 
External tap network guaranteed minimum pressure (m) ugstum.
 
Free spiedienaugstum (m).
 
Hydraulic spiedienaugstum loss amount (m).
 
Regulatory orifice diameter (mm).
 
Pipe internal diameter (mm).
 
Relative diameter (mm).
 
The water table height (mm) of the pipeline itself.
 
Five minutes of rain runoff (l/s ha), where P is the recurrence period of one year.
 
Twenty minutes of rain runoff (l/s ha), where P is the recurrence period of one year.
Parameter, which depends on rainwater drainage district's geographical location, dimensionless.
 
The number of the section of the riser Assembly.
 
The factor that determines the operating at the sanitary technical devices, dimensionless (? 4).
 
The number of servings cooked catering company in an hour; 24 hours.
 
The relative number of servings in one catering to visitors.
 
The number of servings nutrition regulations for business day (shift).
 
Visitor frequency of replacement of a catering company in an hour.
 
The number of sites catering company ēdienzāl.
 
Number of employees in the catering company.
 
Food sales ratio catering company hour, dimensionless.
 
Food sales ratio in the catering company day (shift), dimensionless.
 
Thousand (1/1000).
 
Environmental protection and regional development Minister-Minister of agriculture a. Rāviņš annex 2 Cabinet of 21 July 1998, regulations No 256 et seq of the terms used in No.
The term BC the term explanation
Latvian language in Russian English 1 2 3 4 5 1.
Damper Pfldb; rf gate valve Noslēgarmatūr networks (aizlaidn), which allows the water movement in both directions 2.
Shutter Pfckjyrf slide gate Noslēgplat, which moves the vertical direction 3.
Aka: Rjkjltw Well Structures in the network crews control ~ Rjynhjkmysq ~ ~ ~ Cvjnhjdjq ~ control-see the manhol ~ Yfcjcysq ~ of the pump the pump well with submersible pump for well 4.
Indent Jncneg double bend fitting, which alters the fittings in the location of the riser vertik lo 5.
Flange pipe Akfytw Flank details of connecting with bolts 6.
Jnhjcnjr Branch of the pipeline branch (branch) from the side line or dividing network 7.
Bidet