1513.0320 Container Valves, Accessories, And Discharge Connections

Published: 2015

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Subpart 1.

Excess flow valves.

All vapor and liquid connections, except for pressure relief valves and those specifically exempted in part 1513.0150, subparts 5 and 6, must be equipped with approved excess flow valves. Back-pressure check valves are acceptable in container filling connections. Alternatively, vapor and liquid connections covered by this subpart may be fitted with quick-closing internal valves which, except during operating periods, shall remain closed. If internal valves are not practical, external quick-closing valves may be used according to part 1513.0150, subpart 6, and with appropriate protection as required in part 1513.0370.

Subp. 2.

Pressure gauge.

Each storage container must be provided with a pressure gauge graduated from 0 to 400 psig. Gauges must be designated for use in ammonia service.

Subp. 3.

Vapor equalizing connection.

All containers must be equipped with a vapor equalizing connection.