Turn off the valve body sewage and empty mouth, inject the cleaning agent, repeat the cycle switch valve according to the required amount.
Grease or sealing fat, circulating switch valve to ensure flexible valve operation.
The valve body is vented, and the valve seat seal is tested. If the valve seat still has a leak, the spool position is adjusted.
After adjusting the position of the spool, the seat leak is still not stopped, and the sealing fat is injected again.
The above is some related content of the pneumatic butterfly valve for comprehensive maintenance, for your reference
