qilong valve certficate

Plug Valves

Qilong Plug valve, also called cock or stop-cock valves, is one of the most widely used valves for both on/off and throttling services. Their design is fairly simple; the body is comprised of three main parts: body, cover and plug. The plug is a cylindrical, tapered, or generally cone-shaped device that can be raised or lowered within the seat to maintain, restrict or completely shut off flow. The valve is opened by rotation, with the plug itself being the only element that is capable of movement.

Sleeve Type Soft Sealing Plug Valve Acc.To ANSI

Design and Manufacture API599,API 6D
Face to face(end to end) ANSI B16.10
Flanged connection ANSIB16.5
Butt welded end ANSIB16.25

Connection Lift Plug Valve

Design and Manufacture API599,API 6D
Face to face(end to end) ANSI B16.10
Flanged connection ANSIB16.5
Butt welded end ANSIB16.25

Inverted Pressure Balance Lubricated Plug Valve

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