Butterfly valve maintenance precautions

Daily inspection: Check for leakage, abnormal noise, vibration, etc.

Regular inspection: the valve and other system components should be regularly checked for leakage, rust and lag phenomenon, and the maintenance, cleaning, dust removal, residual stains.

Decomposing inspection: the valve should be inspected and repaired regularly. During decomposing inspection and repair, parts should be washed again, foreign matter should be removed, stains and rust spots should be removed, gaskets and fillers damaged or badly worn should be replaced, and sealing surface should be corrected. After maintenance, hydraulic pressure test should be carried out again on the valve, which can be used again after passing.

If a fluid leakage situation is found during the inspection of the pneumatic butterfly valve, do not touch or get close to the cylinder control valve before confirming safety.