Ball valve daily maintenance

A long service life and maintenance-free period will depend on several factors: normal working conditions, maintaining a harmonious temperature/pressure ratio, and reasonable corrosion data
Ball valve in the closed state, there is still pressure fluid inside the valve body
Before maintenance: relieve pipeline pressure and keep valve in open position; Disconnect the power or air source; Detach the actuator from the support
It is necessary to confirm that the pressure has been removed from the upper and downstream pipelines of the ball valve before disassembly and decomposition
When disassembling and reassembling, care must be taken to prevent damage to the sealing surface of the parts, especially non-metallic parts, and special tools should be used when removing the O-ring
The bolts on the flange must be tightened symmetrically, gradually and evenly during assembly
The cleaning agent should be compatible with rubber parts, plastic parts, metal parts and working media (such as gas) in the ball valve. When the working medium is gas, the metal parts can be cleaned with gasoline (GB484-89). Non-metal parts should be cleaned with pure water or alcohol