Inverted Pressure Balanced Lubricated Plug Valve Manufacturers

Inverted pressure balance lubricated plug valve acc. to ANSI is applicable to the cutting and connection of pipelines medium that are used in various industries such as petroleum, chemical, pharmacy, chemical fertilizer, electric power, etc. under nominal pressure of CLASS 150 – 2500 lbs and working temperature of -29°C -180°C.

  • It has logical structure, reliable seal and excellent performance
  • It has the structure of flip-chip balance able pressure and light on/off operation
    An oil groove is set between valve body and seal surface, which may infuse the seal grease to increase the seal capability
  • The part material and flange dimension may be selected according to current operating condition and users requirement, so that it meets the requirements of various engineering


Design Standard:API 6D / API 599
Pressure/Temperature Chart:ASME B16.34
Face to face Dimension:API 6D / ASME B16.10
Testing Standard:API 6D / API 598
Flange Details:ASME B16.5 UP TO 24”ASME B16.47 ABOVE 24”
Fire Testing:API 6FA
Visual Inspection:MSS SP – 55
Materials:WCB / LCB / LCC / CF8M / CF8 / CF3M
Trims:F6A / F316 / F304 / F316L / F51 /
Ends:Flanged / Butt-weld End


Valve TypeClass RatingSize Range
Plug150#2″ to 24″
Plug300#2″ to 24″
Plug600#2″ to 18″
Plug900#2″ to 16″
Plug1500#2″ to 12″
Plug2500#2″ to 8″

Types of Inverted Pressure Balanced Lubricated Plug Valve