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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
    • Electrical Connection
      • UL-LISTEDNEWLINECOMPATIBLENEWLINECONTROL PANEL
    • For Use With
      • Piping System
    • Relay Contact Type
      • SPDT
    • Brand
      • System Sensor
    • Regulatory Approvals
      • Standard with ULC models, optional for ULNEWLINEmodels, part no. 546-7000

    Others

    • Minimum Operating Ambient Temperature
      • 0 / 32 °C / °F
    • Maximum Operating Ambient Temperature
      • 49 / 120 °C / °F
    • Electrical Connection
      • UL-LISTEDNEWLINECOMPATIBLENEWLINECONTROL PANEL
    • For Use With
      • Piping System
    • Relay Contact Type
      • SPDT
    • Brand
      • System Sensor
    • Regulatory Approvals
      • Standard with ULC models, optional for ULNEWLINEmodels, part no. 546-7000
    • Minimum Operating Ambient Temperature : 0 / 32 °C / °F
    • Maximum Operating Ambient Temperature : 49 / 120 °C / °F
    • Electrical Connection : UL-LISTEDNEWLINECOMPATIBLENEWLINECONTROL PANEL
    • For Use With : Piping System
    • Relay Contact Type : SPDT
    • Brand : System Sensor
    • Regulatory Approvals : Standard with ULC models, optional for ULNEWLINEmodels, part no. 546-7000
    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
    application/pdf 99.02 KB
    3/9/2022
    99.02 KB
    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
    WFD-WFDT(NR) Data Sheet
    application/pdf 251.29 KB
    5/14/2023
    251.29 KB
    Water Flow Detectors Datasheet
    application/pdf 454.86 KB
    5/14/2023
    454.86 KB
    WF SERIES Waterflow Detector Data Sheet
    application/pdf 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
    application/pdf 168.17 KB
    5/14/2023
    168.17 KB
    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
    WFD: FACP Wiring and Typical Bell Connection
    application/pdf 99.02 KB
    2/3/2022
    99.02 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
    Fire Sprinkler Monitoring Overview
    application/vnd.openxmlformats-officedocument.presentationml.presentation 34.84 MB
    6/16/2022
    34.84 MB
    Waterflow Detector Drawing
    image/vnd.dwg 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
    Product Number
    Part Number
    Description
    Add to list
    WFD25
    Water Flow Detector: 2.5in Steel Pipe: UL
    WFD30-2
    Water Flow Detector: 3in Steel Pipe: UL
    WFD30-2EXP
    WATERFLOW DETECTOR 3 EXP
    WFD50
    Water Flow Detector: 5in Steel Pipe: UL