SYSTEM SENSOR | WFD60N
Waterflow Detector, 6" Pipe Size

MFR PART #  WFD60N
PART #  674613
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Description

The new WFDN Series waterflow detectors from System Sensor consists of a rugged, NEMA 4-rated enclosure that is more damage resistant than previous metal designs. The waterflow detector is designed for both indoor and outdoor use, with the widest avail able temperature range, from 32ºF to 150ºF. They are also approved for installation on the widest range of pipe schedules, sizes 2 in. through 4 in. are approved for installation on pipe schedules 7 through 40.

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 with new layout designed to make wiring easy with wire ready terminals, COM terminals are on a dif ferent elevation, large barrier between switches and easy to read raised textured lettering all make wiring easy. An optional cover tamper switch is available, securely snaps into place, no tools required.

The WFDN series incorporates a mechanical time delay feature, which minimizes the risk of false alarm due to pressure surges or air trapped in the fire sprinkler system. The larger and easy to turn timer dial makes setting the waterflow detector easy with high contrast pad printed markings. The dial offers three tabs to help with turning, with one larger tab located on the dial position for approximately 60 seconds, a notch is also indicated on the dial to locate approximately 30 seconds making setting the detector in dimmly lit locations eas y.

The WFDN series is designed for accuracy and repeatability. The detector also offers improved performance during vibration in riser applications where detectors are exposed to a large in rush of water.

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Features

  • New directional cover allows installers and inspectors to easily see the direction of flow
  • UL-listed models are NEMA 4 rated
  • New cover provides a better seal, is lighter weight, not painted and corrosion resistant
  • Sealed retard mechanism immune to dus and other contaminants
  • Less exposed metal reduces shock hazard, plastic cover acts as insulator and is resistant to arcing
  • Visual switch activation
  • Audible switch activation (73 dBA)
  • Field-replaceable timer/switch assembly
  • Accommodates up to 12 AWGre
  • Switch Synchronization activates both alarm panel and local bell or horn strobe
  • Tamper-resistant cover screws
  • Improved water sealing
  • Reduced product weight
  • Wire-ready terminals
  • Improved wiring with new terminal block layout
  • Snap-in optional covmper switch
  • Improved timer repeatability and accuracy

Specifications:

UNSPSC Code 46171600

Spec Sheet

Spec Sheet

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