Lubricated plug valve is a valve that trough 90°rotation to make the access of the valve plug and the body same or separate to achieve the opening or closing. Lubricated plug valve is suitable for flow cutting and switching or shunt, and sometimes can be used for throttling according to the characteristics of medium and erosion resistance of sealing surface. In order to reduce the friction between the body and the plug sealing surface. The lubricated plug valve is generally the grease lubricated seat sealing structure. Ordinary spur drive lubricated plug valve is sealed by contacting the metal plug body and the valve body directly.

We are a fully stocked manufacturer and supplier of lubricated plug valve and we make the valve easy to find for your need. PERFECT provides a complete line of lubricated plug valve for sale that is supplied to various industries. Available forms are flanged and bolted bonnet connections. Our Lubricated plug valve is available from DN 150 up to 900 sizes. We can also accept the OEM design, so whether you need special valves or have a large order to place, we can provide you with the customized service for you. Please review the charts below for available sizes & pressure & material or fill the contact form below.

  • Simple structure, quick switch and low fluid resistance;
  • The lubricated plug valve usually use the rectangular flow path to reduces the torque while increases the fluid resistance;
  • The sealing surface of the cone and valve body is ground with lower opening and closing torque;
  • STL alloy material or surface hardening technology can be surfacing in the cone seal of the cock to enhance the wear resistance and corrosion resistance of the sealing surface, with long service life.

Lubricated plug valve design

Application Flow-cutting and switching or shunt
Design Standard
  • ASME B16.10
  • ASME B1.20.1
  • MSS SP-6
  • MSS SP-25
  • MSS SP-78
F to F Standard ASME B16.10
Testing Standard API 598
End Connection Standard ASME B16.5
  • DN 150 to 900
  • NPS 6 to 36
Pressure Class Range
  • 120 to 500 CWP
Ends Socket weld, Butt weld
  • Body Material: ASTM A216WCB, ASTM A351-CF8, CF8M, CF3, CF3M, etc
  • Seat & Seal Materials: Virgin PTFE, Reinforced PTFE, PFA Lined, Soft and Hard Rubber Lined, NBR, EPDM, PEEK,etc

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