WET-PIPE PROCEDURES Part 4

A. Startup:

1. Close main drain valve. Leave auxiliary drain valves, or other vent connections open.

2. Open the ¼” gauge test valves for the supply and system pressure gauges.

3. Slowly open main control valve until the sound of flowing water just starts, then open the valve one more turn.

4. Observe auxiliary drain valves and close after a solid flow of water (not aerated), has continued for at least 15 seconds.

5. Fully open main control valve.

6. Reset Tamper Alarm.

7. Verify stabilization of supply and system pressure gauges.

8. Verify that the water ceased to flow from alarm drain line.



The above information is provided as a courtesy and is not intended to replace the outlined procedures as given in NFPA 24. It is the owner’s responsibility to follow the outlined procedures in NFPA 24.


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