The System Sensor WFDT is a T-Tap waterflow detector for use with a 1" NPT connection.
Sensor T-Tap Water-flow Detectors are designed for primary signaling in
residential systems and branch line signaling in larger systems.
design of the WFDT and WFDTNR makes them easy to install and simple to
maintain. Either can be mounted in the vertical or horizontal position.
Two conduit openings permit easy attachment to the local alarm system.
The retard mechanism (Model WFDT only) and switch assemblies are
Twelve different flexible plastic paddles fit
1", 11/4", 11/2" and 2" tees. Sizes are marked clearly on the paddles for
ease of installation. Plastic paddles slip over the actuating lever and
are securely fastened with one screw. The handy depth gauge ensures the
proper installation depth and clearance of the detector to the tee.
WFDT and WFDTNR include a durable, tamper-resistant enclosure and
rugged switch assembly. The robust covers completely enclose the
electrical components to keep out dust and dirt. Improved self-guiding
security screws and removal tools make the detectors resistant to
tampering and simplify field maintenance. Dual SPDT switches are
enclosed in a durable terminal block for added strength.