A plug valve is a shutoff or plunger rotary valve that opens or closes by rotating 90 degrees to make the port on the plug connect with or separate from the port on the valve body. Pressure balance lubricated plug valve is a quick switch through valve. Movement between the sealing surface produces wiping effect, but when non-lubricated plug valve is in full open, it can completely prevent contact with the flow medium. This product is suitable for cutting and switching media, as well as diverging, and it can also be used for throttling thanks to the erosion resistance of the sealing surface.
The Pressure balance lubricated plug valve is good for frequent operation as it can be quickly opened and closed.
Its fluid resistance is lower.
The structure and volume is small and it is light in weight,easy to maintain.
Good sealing performance.
Not limited by the direction of installation. The flow direction of the medium can be arbitrary.
No vibration, little noise.
SIZE NPS 1/2 to NPS 36
CLASS 150 to CLASS 2500
Full or Reduced Bore, RF, RTJ or BW
Sleeve type or Pressure Seal Balance.
Available in forging for NPS≤2 (A105, A182 F304, F304L, F316, F316L, F51, F53, A350 LF2, LF3, LF5), Casting for NPS≥2(A216 WCB, A351 CF3, CF8, CF3M, A995 4A, 5A, A352 LCB, LCC, LC2), Monel, Inconel, Hastelloy.
Design & Manufacture acc. To API599, API6D, ISO 14313.
Face to Face acc. To API6D, ASME b16.10.
End Connection acc. to ASME B16.5(RF, RTJ), ASME B16.47(RF, RTJ), MSS SP-44(NPS 22 only) ASME B65.25(BW)
Test & Inspection according to API598, API6D.
Also available as per NACE MR-0175, NACE MR-0103, ISO 15848.
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