The WFDT is a vane-type waterflow detector intended for wet sprinkler systems. FM Approved for steel-pipe (schedule 10 through 40) installations, it is offered in sizes from 25 mm to 50 mm. Suitable for mounting on 1″, 14″ , 1½” and 2″ Ferrous / Brass Tees. The unit features a non-corrosive vane insert and an enclosure suitable for both indoor and outdoor installation. Fitted with an adjustable pneumatic retard, the device contains two single-pole, double-throw snap-action switches that operate when downstream flow is in range of 15 to 37.5 LPM (4-10 GPM), provided the flow continues long enough to clear the preset retard period.
| Model Number | BT-WFDT |
|---|---|
| Approvals | FM Approved |
| Working Pressure | 450 psi |
| Max temperature | 4.5 ºC to 49 ºC (40 ºF to 120 ºF) |
| Maximum Surge | 18 FPS (5.5 m/s) |
| Electrical Ratings | Two sets of SPDT (Form C) |
| Enclosure Rating | NEMA 4- suitable for indoor/outdoor use |
| Cover Material | Aluminium Die-casting |
Engineered for dependable flow control and long-term operation.
Manufactured to meet recognised quality and performance standards.
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