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Lubricated Plug Valve

  • Lubricated Plug Valve
  • Inverted Pressure Lubricated Balance Plug Valve
  • Inverted Lubricated Plug Valve
  • Inverted Pressure Balance Lubricated Plug Valve

Lubricated Plug Valve

AFC is the first one in China who manufactures plug valve for the world market. Today, AFC has become one of the biggest plug valve manufacturer who export worldwide. AFC Lubricated Plug Valves also called Inverted Pressure balance lubricated plug valve acc. To API 599 or API 6D to cutting and connection of pipelines medium that are used in various industries such as pharmacy, chemical fertilizer, electric power industry etc. under normal pressure of Class 150~ -2500 and working temperature of -29~180 Degree C.
The valve is metal seated valves providing a tight shut off ( 0 leakage ) sealing, valves shall be regularly lubricated along with their operation by injection of suitable grease. Due to the absence of any body cavity and as well as a simple & tough design.



AFC Plug Valve Features

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

Design Standard

– Design & manufacture according to API 6D.
– Face-to-face according to API 6D, ASME B16.10
– End Connection according to ASME B16.5 (RF, RTJ), ASME B16.47(RF, RTJ), MSS SP-44 (NPS 22 Only), ASME B16.25 (BW)
– Test & inspection according to API 598, API 6D
– Also available per NACE MR-0175, NACE MR-0103, ISO 15848
– Size Ranges from 1/2”thru 60″.
– Pressure Rating: Class 150 to Class 2500, PN16 to PN420
– Ends Connections in Flanged R.F or RTJ, Wafer, Fully Lugged and Grooved


– Available in Forging for NPS ≤ 2 (A105, A182 F304, F304L, F316, F316L, F51, F53, A350 LF2, LF3, LF5), Casting (A216 WCB, A351 CF3, CF8, CF3M, CF8M, A995 4A, 5A, A352 LCB, LCC, LC2), Monel, Inconel, Hastelloy.

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