Mechanical · M-RZSDP

Floor Control Valve Assembly

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A floor control valve assembly ties into a main standpipe and sprinkler system drain riser. The layout incorporates a floor control valve equipped with a tamper switch, a check valve, and a pressure gauge with a petcock. A flow switch monitors system flow and connects with wiring directed to the fire alarm panel by the electrical contractor. The test and drain loop features a one-inch sight glass, a drain valve, a test valve, and a one-inch union housing a brass orifice disk. The orifice is sized to match a flow equivalent to the smallest orifice in the system, and piping offsets above the ceiling according to floor plan routing requirements.

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