CRYOGENIC TRUNNION MOUNTED BALL VALVES

CRYOGENIC TRUNNION MOUNTED BALL VALVES 

GWC Offers Cryogenic Trunnion Mounted Ball Valves to service at temperatures down to minus 196 'C

Cryogenic Trunnion Mounted Ball Valves Cryogenic service valves are offers safe, prevents frost or ice formation around the packing box area and minimizes heat transfer in the operating fluid itself. specially designed for the production, storage and transport of liquefied gases such as oxygen, nitrogen, LNG, argon and helium, etc. All valves are produced with extended bonnet, enclosed vapour chamber to keep the stem packing exposed only to vapour, and thus ensuring proper function.

Trunnion Mounted Ball Valve Description

The trunnion ball valve is a form of quarter-turn valve which uses a hollow, perforated and fixed/supported ball to control flow through it. A trunnion mounted valve means that the ball is constrained by bearings and is only allowed to rotate, the majority of the hydraulic load is supported by the System constraints, resulting in low bearing pressure and no shaft fatigue. The line pressure drives the upstream seat against the stationary ball so that the line pressure forces the upstream seat onto the ball causing it to seal. The mechanical anchoring of the ball absorbs the thrust from the line pressure, preventing excess friction between the ball and seats, so even at full rated working pressure operating torque remains low. This is particularly advantageous when the ball valve is actuated because it reduces the size of the actuator and hence the overall costs of the valve actuation package.

• Design: API 603, OS and Y BB RF 

• Body Material: CF8, CF8M, CF3, CF3M

• Class: 150 ~ 1500

• Inspection and Test: BS 6364

 FEATURES 

• FULL AND REDUCED BORE

• 2-3 PIECE BODY

• ANTI-BLOW OUT STEM

• ANTI STATIC DEVICE

• FIRESAFE TO API -607 /6FA

• ZERO EMISSIONS FROM STEM 

• NACE MR-01-75

FOR MORE INFORMATION ABOUT THE PRODUCT

PLEASE CLICK LINK BELOW

CATALOGUE.PDF