Water Flow Switches

The System Sensor WFDN series is compatible with schedule 7 through 40 steel pipe, for sizes 2" through 4" and compatible with schedule 10 through 40 steel pipe, sizes 5" through 8" and can be mounted in a vertical or horizontal position.

The System Sensor WFDTN T-tap waterflow detectors are designed for signaling in residential systems and branch line signaling.

Specifications: 
  • Allows installers and inspectors to easily see the direction of flow
  • Visual switch activation
  • UL Listed

Tabs

Part Table

8 Items

Part Size
WFD20N
WFD20N
2”
WFD25N
WFD25N
2½”
WFD30N
WFD30N
3”
WFD40N
WFD40N
4”
WFD50N
WFD50N
5”
WFD60N
WFD60N
6”
WFD80N
WFD80N
8”
WFDTN
WFDTN
T-Tap (1 - 2”)