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25Nb - 50Nb Weflo Flow Switch c/w Retard
VMSWFS2550WR
The Weflo UL / FM Waterflow Detectors are a Vane Type design used in fire protection piping systems.
The Flow Switch is designed for both indoor and outdoor use, with a temperature range of 0° C to 68° C.
Flow Switch devices are enclosed in a sturdy, die-cast housing, offering the ultimate in accuracy and reliability.
UL / ULC Listed / FM Approved.
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Availability date:
The Weflo UL / FM Waterflow Detectors are a Vane Type design used in fire protection piping systems.
The Flow Switch is designed for both indoor and outdoor use, with a temperature range of 0° C to 68° C.
Flow Switch devices are enclosed in a sturdy, die-cast housing, offering the ultimate in accuracy and reliability.
UL / ULC Listed / FM Approved.
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TECHNICAL DATA SHEETS
Product Information
Water flow detectors are mounted to water-filled pipes in sprinkler systems. It is used on wet sprinkler systems that use 1" (25mm), 1¼" (32mm), 1½" (38mm) or 2"(50mm) pipe size.
Water flow in the pipe deflects a vane, which triggers a switch usually after a specified delay period. All water flow detectors have a pneumatically controlled mechanical delay mechanism. Delays reset if the flow of water stops before the entire delay has elapsed. All switches actuate when the water flow rate is 10 gallons per minute or greater, but will not actuate if the rate is less than 4gallons per minute.
The cover incorporates tamper resistant fasteners that requires a special key for removal. One key is supplied with each device.
