Pipoy04
Mechanical
- Nov 22, 2014
- 40
Dry pipe system (Pre-action Valve activated by smoke detector). During alarm gong testing pressure switch is activated due to the flow of water, does the pressure switch will give signal to the solenoid valve to open the check valve? We are facing issues with our clients because in order to test the water alarm gong and pressure switch, we are deactivating the solenoid so that it will not open the clapper during the alarm gong test but they did not allow.