Waterflow Detectors

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Waterflow Sprinkler Products

- Waterflow Detectors

WFD
Durable and dependable, a number of System Sensor's products are UL listed for outdoor as well as indoor application. The WFDTH model is designed for residential systems and fits nicely into 2 in.x 4 in. wall stud construction.

450 PSI pressure rated

NEMA4 rated

Visual switch activation

Durable metal enclosure

Sealed retard mechanism

WFDT EXPLOSION PROOF

U.S. / Int'l Models

Pipe Size / Schedule
Hole Size o o

WFDT
Fits 1 in., 1.25 in., 1.5 in. ferrous and brass threaded tees; 1 in., 1.25 in., 1.5 in., 2 in. copper sweat tees; 1 in. CPVC tees; 1.5 in. polybutylene tees. Now includes paddles for 1" Central Sprinkler, Spears®*, and Victaulic® brand CPVC TEES**.

WFDTNR Non-retard; fits same tees as above

WFDTH For residential systems; fits same tees as above

WFD20
WFD20EXP 2 in. / 50 mm – schedule 10 through 40
(see data sheet for LPC, VDS nominal pipe O.D.) 1-1/4"

WFD25
WFD25EXP 2.5 in. / 65 mm – schedule 10 through 40 1-1/4"

WFD30
WFD30EXP 3 in. / 80 mm – schedule 10 through 40 1-1/4"

WFD30-2
3 in. / schedule 10 through 40 2"

WFD35 3.5 in. / schedule 10 through 40 1-1/4"

WFD40
WFD40EXP 4 in. / 100 mm – schedule 10 through 40 2"

WFD50 5 in. / schedule 10 through 40 2"

WFD60
WFD60EXP 6 in. / 150 mm – schedule 10 through 40 2"

WFD80
WFD80EXP 8 in. / 200 mm – schedule 10 through 40 2"

(For Canadian models add "A" to the model number)

* Spears® is a registered trademark of Spears Manufacturing Company.
** Victualic® is a registered trademark of Victualic Company of America.

Data Sheet Installation Instruction