Checkthevalvepartwhether

Add Time:2014-10-17 Hits:627

1. Joint of valve clack and valve base is tight and flawless;
2. Joint of valve stem and valve clack is flexible and reliable;
3. Valve stem is bent and rusting; combination of valve stem and stuffing gland is proper; screw thread is flawless;
4. Any crack of valve cap and valve body; matching is good;
5. Gasket, stuffing and bolt are secure and flawless.

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