The Potter Electric Signal VSR-S is a vane-type waterflow alarm switch for small sprinkler pipe. Specifically, it fits 1″, 1-1/4″, 1-1/2″, and 2″ pipe. It detects water movement in wet-pipe sprinkler systems. As a result, it signals the fire alarm panel when flow indicates a possible fire.
How the Potter Electric Signal VSR-S works
The unit threads into a 1″ NPT tee using its brass bushing. A paddle then moves when water flows downstream. After the selected retard period, the switch activates. This adjustable pneumatic retard runs from 0 to 90 seconds. Therefore, it helps prevent false alarms from water surges. The switch activates on a flow of 10 GPM or more.
Key features
- Fits 1″ to 2″ CPVC, copper, brass, or iron pipe
- Twelve paddles included, one for each pipe size and tee type
- Two SPDT (Form C) snap-action switch contacts
- Field-replaceable 0-90 second pneumatic retard
- Requires no power to operate; 5-year warranty
Specifications
- Contact rating: 10.0 A at 125/250 VAC; 2.0 A at 30 VDC resistive
- Service pressure: up to 300 PSI
- Operating temperature: 40°F to 120°F (4.5°C to 49°C)
- Maximum surge: 18 FPS
- Enclosure: NEMA 4 / IP54; composite cover with die-cast aluminum base
- Conduit: two 1/2″ connections
- Listings: UL, cUL Listed, LPCB Approved, CE Marked
- Standards: NFPA 13, 13D, 13R, and 72
First, select the correct paddle for the pipe size and tee type. Then thread the device into the tee using no more than three wraps of Teflon tape. Also, orient the bushing arrow in the direction of waterflow. However, do not use this device in hazardous locations. Finally, set the retard to the minimum delay needed.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
Additional information
| Weight | 2.5 lbs |
|---|---|
| Dimensions | 7 × 9 × 4 in |
| Condition | New |
| Manufacturers | Potter |
| Part Type | Replacement Part |
