Having a long service life and maintenance-free period will depend on several factors: normal operating conditions, maintaining a harmonious temperature/pressure ratio, and reasonable corrosion data
When the ball valve is closed, there is still pressurized fluid inside the valve body
Before Servicing: Depressurize the line and keep the valve in the open position; disconnect power or air supply; disengage the actuator from the yoke
The dismantling and dismantling operations must be carried out after confirming that the upper and downstream pipelines of the ball valve have been depressurized.
During disassembly and reassembly, care must be taken to prevent damage to the sealing surfaces of parts, especially non-metallic parts, and special tools should be used when removing O-rings
The bolts on the flange must be tightened symmetrically, gradually and evenly during assembly
The cleaning agent should be compatible with the rubber parts, plastic parts, metal parts and working medium (such as gas) in the ball valve. When the working medium is gas, gasoline (GB484-89) can be used to clean metal parts. Clean non-metallic parts with pure water or alcohol
Non-metallic parts should be removed from the cleaning agent immediately after cleaning, and should not be soaked for a long time
After cleaning, it needs to be assembled after the cleaning agent on the wall to be washed has evaporated (it can be wiped with a silk cloth not soaked in the cleaning agent), but it should not be left for a long time, otherwise it will rust and be polluted by dust.
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