Sprinkler Systems Monitoring WFDN Series Waterflow Detectors The new WFDN Series waterflow detectors provide an easy to see, feel, and set time delay mechanism. The timer dial is large and easy to turn, with high contrast pad-printed markings. Set by feel in dimly lit locations with tactile features for approximate setting at 30 and 60 seconds. The delay/switch assembly is field replaceable for ease of maintenance. See, feel, and set timer dial The new WFDTN T-Tap 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 available temperature range, from 32°F to 120°F. The new timer dial has high-contrast lettering and tactile markings. Now you can set the timer by sight or touch with repeatable precision: a must when waterflow detectors are installed in hardto-reach or dark places. 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 Sizes 2" through 4” approved for schedule 7, 10 and 40 pipe Sizes 5” through 8” approved for schedule 10 and 40 pipe. Sealed retard mechanism immune to dust and other contaminants Less exposed metal reduces shock hazard, non-metallic 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 AWG wire 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 cover tamper switch Improved timer repeatability and accuracy QR Code label on terminal block for easy installation manual reference WFD to WFDN Series Conversion Current Model NEW Model Description WFD20 WFD20N 2" Waterflow Detector WFD25 WFD25N 2.5" Waterflow Detector WFD30-2 WFD30N 3" Waterflow Detector WFD40 WFD40N 4" Waterflow Detector WFD50 WFD50N 5" Waterflow Detector WFD60 WFD60N 6" Waterflow Detector WFD80 WFD80N 8" Waterflow Detector WFDT WFDTN T-Tap Waterflow Detector for use with 1" NPT WFDTH WFDTN T-Tap Waterflow Detector for use with 1" NPT WFDTNR WFDTNRN T-Tap Waterflow Detector for use with 1" NPT, without time delay — CTS Cover Tamper Switch — FS-RT Replacement Timer/Switch Assembly Sprinkler Systems Monitoring Product Cross Reference Waterflow Detectors Explosion-Proof Tamper Switches System Sensor Model No. Product Description Potter Electric Model No. System Sensor Model No. Product Description Potter Electric Model No. WFD20N 2" Pipe Diameter, Waterflow Detector VSR-2 OSYEXP Outside stem and yoke switch OSYS-U-EX WFD25N 2.5" Pipe Diameter, Waterflow Detector VSR-2.5 PIBVEXP Post indicator/ butterfly valve switch PIVS-U-EX WFD30N 3" Pipe Diameter, Waterflow Detector VSR-3 EPS10-1 Pressure switch, 4-20 PSI, 1 SPDT PS10-1 WFD40N 4" Pipe Diameter, Waterflow Detector VSR-4 Pressure switch, 4-20 PSI, 2 SPDT PS10-2 WFD50N 5" Pipe Diameter, Waterflow Detector VSR-5 PS40-1 WFD60N 6" Pipe Diameter, Waterflow Detector VSR-6 Pressure switch, 10-100 PSI, 1 SPDT WFD80N 8" Pipe Diameter, Waterflow Detector VSR-8 Pressure switch, 10-100 PSI, 2 SPDT PS40-2 WFDTN T-Tap Waterflow Detector with built-in time delay VSR-SF EPS120-1 PS120-1 WFDTNRN T-Tap Waterflow Detector without built-in time delay VSR-SP Pressure switch, 10-200 PSI, 1 SPDT (Potter pressure range: 25-175 PSI) EPS120-2 Pressure switch, 10-200 PSI, 2 SPDT (Potter pressure range: 25-175 PSI) PS120-2 (Potter pressure range: 4-15 PSI) EPS10-2 (Potter pressure range: 4-15 PSI) EPS40-1 (Potter pressure range: 10-60 PSI) EPS40-2 (Potter pressure range: 10-60 PSI) Explosion-Proof Waterflow Detectors System Sensor Model No. Product Description Potter Electric Model No. WFD20EXP 2" Pipe Diameter, Waterflow Detector VSR-FEX 2 WFD25EXP 2.5" Pipe Diameter, Waterflow Detector VSR-FEX 2.5 WFD30-2EXP 3" Pipe Diameter, Waterflow Detector VSR-FEX 3 WFD40EXP 4" Pipe Diameter, Waterflow Detector VSR-FEX 4 WFD50EXP 5" Pipe Diameter, Waterflow Detector VSR-FEX 5 WFD60EXP 6" Pipe Diameter, Waterflow Detector VSR-FEX 6 WFD80EXP 8" Pipe Diameter, Waterflow Detector VSR-FEX 8 Tamper Switches Explosion-Proof Pressure Switches System Sensor Model No. Product Description Potter Electric Model No. EPS10EXP Pressure switch, 4-20 PSI, 2 SPDT PS10-EX EPS40EXP Pressure switch, 10-175 PSI, 2 SPDT PS40-EX EPS120EXP Pressure switch, 10-200 PSI, 2 SPDT None System Sensor Model No. Product Description Potter Electric Model No. SSV120-6 6" alarm bell, 120 VAC PBA-1206 SSV120-8 8" alarm bell, 120 VAC PBA-1208 SSV12-10 10" alarm bell, 120 VAC PBA-12010 Alarm Bells System Sensor Model No. Product Description Potter Electric Model No. PIBV2 Post indicator/ butterfly valve switch PCVS-1 PCVS-2 SSM24-6 6" alarm bell, 24 VDC PBA-246 SSM24-8 8" alarm bell, 24 VDC PBA-248 OSY2 Outside stem and yoke valve switch OSYSU-1 OSYSU-2 SSM24-10 10" alarm bell, 24 VDC PBA-2410 PSP1 Non-rising stem gate/ ball and angel valve switch PTS-C ©2015 System Sensor. 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