Valveinspection

Add Time:2014-10-17 Hits:773

1. Leakage at static seal of flange gasket and dynamic seal of valve stem.
2. Whether status of start or stop is normal.
3. Abnormity (damage, leakage, etc.) of valve body.
4. Rotate the normally closed or normally open valve for 1-2 circles, or conduct an up-and-down test.
5. Lubricate the valve stem of normally closed or normally open valve.
6. Check and debug unit head and electrical system of air-operated valve and electric valve;
7. Debug opening indicator, stroke controller of air-operated valve and electric valve.

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