Inverted Pressure Balance Lubricated Plug Valve:

~Bolt cover,structure of flip-chip balanceable pressure and light on/off operation.An oil grove is set between valve body and seal surface,which may infuse the seal grease t
increase the seal capability.

Standards compliance
Design and Manufacture: API 599,API 6D

Face to face(end to end): API B 16.10

Flanged connection: ANSI B16.5

Butt welded end: ANSI B16.25

Test and inspection: API 598,API 6D
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