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FM Approvals 1031

M00001122

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FM Approvals 1031 Quick Opening Devices (Accelerators and Exhaustors) for Dry Pipe Valves

standard by FM Approvals, 05/01/1977

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Full Description

This standard covers quick opening devices (accelerators and exhaustors) used with dry pipe valves in fire protection systems to hasten the operation of valves when one or more sprinklers operate