Pressure Balance Lubricated Metal Seated Plug Valves
Pressure balance lubricated plug valves are 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, they are highly recommended for any critical “Full ΔP” operation and for handling any media with an high % of solids contents, further more they provide an excellent resistance to abrasion, they are free from routine maintenance, providing a long service life.
DN 1/2” to 48” Class: up to 600
DN 1/2” to 36” Class: up to 900
DN 1/2” to 24” Class: up to 1500
DN 1/2” to 20” Class: up to 2500
· Available in SHORT, VENTURI or REGULAR Pattern.
· RF, RTJ, or BW
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
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
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.