NSV trunnion mounted ball valve is widely used in oil, nature gas pipeline and the industries of liquid gas, coal gas, etc. as an open/close control element. The design of seat seal uses unique two-level soft seal and metal to metal seal to form triple sealing to ensure seal reliability with small open/close torque and easy operation. So it is safe and free of maintenance to use this series of ball valve. This type of valves has advantage of less weighted and cost effective. It is ideal for frequent on-off flow control in big size and high pressure pipeline.
 
Applicable Standard
 Design Standard:    API 6D, ASME B16.34, BS 5351, API 608, MSS SP-72
 Face to Face:   ASME B16.10, API 6D, EN 558
 End Flange:    ASME B16.34, DIN 2501
 Buttwelding Ends:    ASME B16.25
 Inspection and Test: API 598, API 6D
 
Products Range
 Size:     2" ~ 48"(DN50 ~ DN750)
 Rating:     ANSI 150lb ~ 1500lb
 Body Materials:   Carbon steel, Stainless steel
 Trim:    A105+ENP, 13Cr, F304, F316
 Operation:     Lever, Gear, Electric, Pneumatic, Hydraulic actuators
 
Design Features
 Full port or reduced port
 Trunnion mounted ball
 Blowout-proof stem
 Double block & bleed
 Emergency sealant injection
 Cavity pressure self relief
 Fire safe design to API 607 / API 6FA
 Anti-static to BS 5351