Plug Valves
Pressure-Balanced Plug Valve
Price:Quoted by size, pressure rating, body material and configuration
- Size rangeDN50 – DN600 (2″ – 24″)
- Pressure classASME Class 300 – 900 (PN 50 – PN 150)
- Body materialWCB / CF8M
- PlugSurface hardening treatment
Our Products
The pressure-balanced plug valve has pressure-balancing passages in the plug so that the radial thrust of the high-pressure medium on the plug cancels out, significantly reducing operating torque. It is intended for isolation of high-pressure, large-diameter gas media.
The plug is grease-sealed and surface-hardened, giving easy operation and reliable sealing in high-pressure natural gas, hydrogen and long-distance pipelines. It is one of the economical alternatives to ball and gate valves on high-pressure gas lines. Design basis: API 599.
Features
· Pressure-balanced design: much lower operating torque at high pressure
· Grease sealing plus surface hardening for reliable high-pressure sealing
· Suited to high-pressure, large-diameter gas media
· 90° quarter-turn, easy operation
· Sealing grease can be replenished during operation
· Handwheel / worm gear / pneumatic / electric
Technical Specifications
Size range
DN50 – DN600 (2″ – 24″)
Pressure class
ASME Class 300 – 900 (PN 50 – PN 150)
Body material
WCB / CF8M
Plug
Surface hardening treatment
Sealing method
Grease injection sealing + pressure-balancing passages
End connection
RF/RTJ flange / butt weld
Temperature range
−29 ~ +200 °C (depending on sealing grease)
Design standard
API 599 / ASME B16.34
Operation
Handwheel / worm gear / pneumatic / electric
Applications
For high-pressure natural gas, hydrogen and long-distance pipelines, in isolation and fast open/close duties for high-pressure, large-diameter gas media.