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Flow Switches & Sensors

WFD Series Waterflow Detector

WFD Series water flow detectors are compatible with schedule 10 through 40 steel pipe, sizes 2 through 8 inch, and can be mounted in a vertical or horizontal position.

WFD Series Waterflow Detector

WFD Series water flow detectors are compatible with schedule 10 through 40 steel pipe, sizes 2 through 8 inch, and can be mounted in a vertical or horizontal position. WFD Series detectors consist of a rugged, NEMA 4-rated enclosure. Designed for both indoor and outdoor use, WFD Series detectors operate across a wide temperature range, from 32 to 120 °F.UL-listed models are equipped with tamper-resistant cover screws to prevent unauthorized entry. Inside, two sets of SPDT (Form C) synchronized switches are enclosed in a durable terminal block to assure reliable performance. The WFD Series detectors incorporate a mechanical retard feature, which minimizes the risk of false alarm due to pressure surges or air trapped in the sprinkler system. In addition, the mechanical retard’s unique sealed design is immune to dust and other contaminants. The WFD Series is designed to simplify installation. Two conduit openings permit easy attachment to the local alarm system. The retard mechanism and dual SPDT switches are field-replaceable.

Features & Benefits:
  • Two inch mounting hole provided in new WFD30-2 models
  • UL-listed models are NEMA 4 rated
  • Sealed retard mechanism immune to dust and other contaminants
  • Visual switch activation
  • Field-replaceable retard mechanism and SPDT switches
  • Rugged, dual SPDT switches enclosed in a durable terminal block
  • Accommodates up to 12 AWG wire
  • Designed for both indoor and outdoor use
  • 100% synchronization activates both alarm panel and local bell
  • Tamper-resistant cover screws
Certifications:
  • UL Listed S73
  • ULC CS169
  • CSFM 7770-1653:114
  • MEA Approved 167-93-E
  • FM Approved 3006195
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SKU
Description
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WFD40
Water Flow Detector, 4in Steel Pipe, UL
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WFD30-2A
Water Flow Detector, 3in Steel Pipe, ULC
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WFD25
Water Flow Detector, 2 1/2in Steel Pipe, UL
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WFD80A
Water Flow Detector, 8in Steel Pipe, ULC
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WFD60A
Water Flow Detector, 6in Steel Pipe, ULC
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WFD80
Waterflow Detector, WFD Series, 8in Steel Pipe
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WFD60
Water Flow Detector, 6in Steel Pipe, UL
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WFD30-2
Water Flow Detector, 3in Steel Pipe, UL
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WFD20
Water Flow Detector, 2in Steel Pipe, UL
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WFD40A
Water Flow Detector, 4in Steel Pipe, ULC