The information contained in this document is subject to change without notice.
BERMAD shall not be liable for any errors contained herein. All Rights Reserved. © Copyright by BERMAD Control Valves.
ON LINE STATIC TEST PROCEDURES
OPEN VALVE: STATIC TEST
1. Close cock valve #1 and #2 to isolate the pilot control
system. This prevents dirt exposure in the control loop.
2. Remove plug from the cover of the valve.
Caution: This will allow the valve to fully open. Make sure
that this condition does not cause system damage!
3. Check for leaks at the flange connection fittings etc.
CLOSE VALVE: STATIC TEST
1. Open cock valve #1 and close cock valve #2.
2. Close the plug on the cover. Pressure will be built in the
main valve cover. Release tube connector slightly to release
air traps and then close it. The main valve should close.
3. Check the valve cover and diaphragm for leaks, tighten
bolts if necessary.
START-UP OPERATION
Note: Ensure upstream pressure exist.
1. Close cock valves 1 and 2 to isolate the control system.
This prevents dirt exposure in the control loop.
2. Remove the cover plug on the main valve cover, allowing
the valve to fully open.
3. Open isolation valves.
4. Replace the cover plug and close cock valve #2, the main
valve will close.
5. The needle valve #5 is factory set at one to one-and-a-half
turns. Turn the needle valve clockwise - to reduce the
closing rate speed of the main valve - or vice versa.
6. Check valve operation by slowly opening / closing cock