Check valve knowledge: common faults of check valves

Check valve knowledge: common faults of check valves
Clicks: 40 Release time: 2009-5-13
Common faults of check valves are:
1 valve broken;
2 The media is reversed. The reason why the valve is broken is that the medium pressure before and after the check valve is in a state of being close to balance and "saw" each other. The valve is often tapped with the valve seat, and some brittle materials (such as cast iron, brass, etc.) are made. The valve office was broken.
Prevention approach is to use a valve to do is check the toughness of the material.
The reasons for the backflow of the check valve medium are as follows: 1 the sealing surface is broken; 2 the impurities are trapped. Repairing the sealing surface and removing impurities can prevent backflow.
Previous valve knowledge: Check valve knowledge: basic knowledge of swing check valves
Next valve knowledge: Check valve knowledge: check valve maintenance and maintenance
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