Day: November 8, 2021

tilting check valve with hydraluic damper 3
Peter Lee

How to perform routine maintenance on the valve? It’s nothing after reading this!

Leakage of valve body and bonnet:


1. The casting quality of iron castings is not high, and there are defects such as blisters, loose tissues, slag inclusions on the valve body and bonnet body

2. Freeze cracking;

3. Poor welding, there are defects such as slag inclusion, non-welding, stress cracks, etc.;

4. The cast iron valve is damaged after being hit by a heavy object.


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