Alarm pressure switch with retard is a pressure operated switch with an adjustable, instantly recycling pneumatic retard to prevent false alarms due to water pressure variation. It is connected into the alarm port of a wet sprinkler system alarm check valve.
Available size
| Switch | Time delay setting (Sec.) | Connection | Max operating pressure (psi) | Ref. No. |
|---|---|---|---|---|
| Two SPDT | 0- 65 | 1/2″ NPT, male | 200 | V8701 |
| Two SPDT | 0- 90 | 1/2″ NPT, male | 175 | V8702 |
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