Eight common faults of valves and their treatment methods
Issuing time:2019-07-12 00:00
Cause of valve body leakage:
1. There are sand holes or cracks in the valve body;
2. Pull-out Crack of Valve Body during Repair Welding
1. For polishing of suspected cracks, etching with 4% nitric acid solution can reveal cracks.
2. Digging and repairing the cracks.