13
IOM D-040
5.3. Second Stage Maintenance
Perform if the first stage doesn't solve the leak, if one of
the seals or inner parts need replacement or for periodic
maintenance to thoroughly clean the valve.
5.3.1. Releasing Pressure
•
Shut the isolating valve located on the riser under the air valve
•
Carefully release the pressure and drain the air valve
•
Important: Discard liquid to comply with local regulations
5.3.2. Removal of the Air Valve Body
•
Slowly turn the Body (1) counterclockwise, and
remove it [2]
•
Remove the Discharge Outlet Elbow [3], [4] (snap-on
or thread)
4
3
1
2
