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Water Detectors

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.

Overview

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
Specifications

Others

  • Minimum Operating Ambient Temperature
    • 0 / 32 °C / °F
  • Maximum Operating Ambient Temperature
    • 49 / 120 °C / °F
  • For Use With
    • Piping System
  • Electrical Connection
    • UL-LISTEDNEWLINECOMPATIBLENEWLINECONTROL PANEL
  • Relay Contact Type
    • SPDT
  • Regulatory Approvals
    • Standard with ULC models, optional for ULNEWLINEmodels, part no. 546-7000
  • Brand
    • System Sensor

Others

  • Minimum Operating Ambient Temperature
    • 0 / 32 °C / °F
  • Maximum Operating Ambient Temperature
    • 49 / 120 °C / °F
  • For Use With
    • Piping System
  • Electrical Connection
    • UL-LISTEDNEWLINECOMPATIBLENEWLINECONTROL PANEL
  • Relay Contact Type
    • SPDT
  • Regulatory Approvals
    • Standard with ULC models, optional for ULNEWLINEmodels, part no. 546-7000
  • Brand
    • System Sensor
  • Minimum Operating Ambient Temperature : 0 / 32 °C / °F
  • Maximum Operating Ambient Temperature : 49 / 120 °C / °F
  • For Use With : Piping System
  • Electrical Connection : UL-LISTEDNEWLINECOMPATIBLENEWLINECONTROL PANEL
  • Relay Contact Type : SPDT
  • Regulatory Approvals : Standard with ULC models, optional for ULNEWLINEmodels, part no. 546-7000
  • Brand : System Sensor
Others
Name
Description
File Size
Date
Size
Certificados y copias compulsadas de resoluciones Product Bulletin
application/pdf 313.56 KB
6/9/2006
313.56 KB
System Sensor- WFDEXP Series- explosion proof- vane type water flow detectors Declaration of Conformity
application/pdf 317.45 KB
1/8/2024
317.45 KB
System Sensor- WFD Series- vane type- water flow detectors Declaration of Conformity
application/pdf 317.15 KB
1/8/2024
317.15 KB
Water Flow Detectors Datasheet
application/pdf 454.86 KB
5/14/2023
454.86 KB
System Sensor Models WFD20, -25, -30, -35, -40, -50, -60, -80, WFD-30-2, WFDT, WFDTH, WFDTNR, and RFDTH paddle-type waterflow indicators Listing
application/pdf 168.17 KB
5/14/2023
168.17 KB
WFD: FACP Wiring and Typical Bell Connection
application/pdf 99.02 KB
2/3/2022
99.02 KB
Fire Sprinkler Monitoring Overview
application/vnd.openxmlformats-officedocument.presentationml.presentation 34.84 MB
6/16/2022
34.84 MB
Technical Bulletins
Name
Description
File Size
Date
Size
WFD: FACP Wiring and Typical Bell Connection Tech Bulletin
application/pdf 99.02 KB
3/9/2022
99.02 KB
CAD Drawings
Name
Description
File Size
Date
Size
Waterflow Detector Drawing
image/vnd.dwg 240.97 KB
4/28/2023
240.97 KB
Waterflow Detector Drawing
image/vnd.dwg 247.02 KB
4/28/2023
247.02 KB
Waterflow Detector Drawing
image/vnd.dwg 168.84 KB
4/28/2023
168.84 KB
Waterflow Detector Drawing
image/vnd.dwg 170.38 KB
4/28/2023
170.38 KB
Waterflow Detector Drawing
image/vnd.dwg 288.68 KB
4/28/2023
288.68 KB
Waterflow Detector Drawing
image/vnd.dwg 167.94 KB
4/28/2023
167.94 KB
Data Sheet
Name
Description
File Size
Date
Size
WFD-WFDT(NR) Data Sheet
application/pdf 251.29 KB
5/14/2023
251.29 KB
WF SERIES Waterflow Detector Data Sheet
application/pdf 256.71 KB
5/14/2023
256.71 KB
Name
Description
File Size
Date
Size
WFD: FACP Wiring and Typical Bell Connection Tech Bulletin
99.02 KB
3/9/2022
99.02 KB
Certificados y copias compulsadas de resoluciones Product Bulletin
313.56 KB
6/9/2006
313.56 KB
System Sensor- WFDEXP Series- explosion proof- vane type water flow detectors Declaration of Conformity
317.45 KB
1/8/2024
317.45 KB
System Sensor- WFD Series- vane type- water flow detectors Declaration of Conformity
317.15 KB
1/8/2024
317.15 KB
WFD-WFDT(NR) Data Sheet
251.29 KB
5/14/2023
251.29 KB
Water Flow Detectors Datasheet
454.86 KB
5/14/2023
454.86 KB
WF SERIES Waterflow Detector Data Sheet
256.71 KB
5/14/2023
256.71 KB
System Sensor Models WFD20, -25, -30, -35, -40, -50, -60, -80, WFD-30-2, WFDT, WFDTH, WFDTNR, and RFDTH paddle-type waterflow indicators Listing
168.17 KB
5/14/2023
168.17 KB
Waterflow Detector Drawing
240.97 KB
4/28/2023
240.97 KB
Waterflow Detector Drawing
247.02 KB
4/28/2023
247.02 KB
WFD: FACP Wiring and Typical Bell Connection
99.02 KB
2/3/2022
99.02 KB
Waterflow Detector Drawing
168.84 KB
4/28/2023
168.84 KB
Waterflow Detector Drawing
170.38 KB
4/28/2023
170.38 KB
Waterflow Detector Drawing
288.68 KB
4/28/2023
288.68 KB
Fire Sprinkler Monitoring Overview
34.84 MB
6/16/2022
34.84 MB
Waterflow Detector Drawing
167.94 KB
4/28/2023
167.94 KB
Name
Description
File Size
Date
Size
Certificados y copias compulsadas de resoluciones Product Bulletin
313.56 KB
6/9/2006
System Sensor- WFDEXP Series- explosion proof- vane type water flow detectors Declaration of Conformity
317.45 KB
1/8/2024
System Sensor- WFD Series- vane type- water flow detectors Declaration of Conformity
317.15 KB
1/8/2024
Water Flow Detectors Datasheet
454.86 KB
5/14/2023
System Sensor Models WFD20, -25, -30, -35, -40, -50, -60, -80, WFD-30-2, WFDT, WFDTH, WFDTNR, and RFDTH paddle-type waterflow indicators Listing
168.17 KB
5/14/2023
WFD: FACP Wiring and Typical Bell Connection
99.02 KB
2/3/2022
Fire Sprinkler Monitoring Overview
34.84 MB
6/16/2022
WFD: FACP Wiring and Typical Bell Connection Tech Bulletin
99.02 KB
3/9/2022
Waterflow Detector Drawing
240.97 KB
4/28/2023
Waterflow Detector Drawing
247.02 KB
4/28/2023
Waterflow Detector Drawing
168.84 KB
4/28/2023
Waterflow Detector Drawing
170.38 KB
4/28/2023
Waterflow Detector Drawing
288.68 KB
4/28/2023
Waterflow Detector Drawing
167.94 KB
4/28/2023
WFD-WFDT(NR) Data Sheet
251.29 KB
5/14/2023
WF SERIES Waterflow Detector Data Sheet
256.71 KB
5/14/2023