How to check alarm check valve?
To check the alarm check valve, follow these steps:
Step 1: Check if the valve is visible and accessible. Make sure there are no obstructions or debris around the valve.
Step 2: Check the valve for any leaks or signs of wear and tear. Inspect the valve body, clapper assembly, and seat rings for any damage.
Step 3: Check the valve operation. Open and close the valve to test its function. The valve should operate smoothly, without any resistance or binding. Ensure that the clapper assembly is free to move.
Step 4: Check the valve trim. Make sure that all the components are intact and correctly installed, including the alarm line, trim cover, and alarm test header.
Step 5: Test the alarm system. Connect a test gauge to the alarm test header and activate the alarm system. Observe the gauge pressure and ensure that it meets the requirements of the sprinkler system.
