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FM Approvals 1361
- Water Pressure Relief Valves
- standard by FM Approvals, 08/01/1993
- Publisher: FM Approvals
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This standard states FM Approval requirements for water pressure relief valves which relieve excess pressures in a water supply system, o rwhich are used in the discharge lin eof a fire pump to limit the pressure developed by the pump. Smaller sizes used with electric motor-driven pumps
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