Trunnion Ball Valve

trunnion mounted ball valves feature: a full line product offering with valves ranging in 2"-42", ANSI classes 150LB - 2500LB, forged steel bolted or all welded body, close coupled trunnion block design for low operating torques, secondary seat sealant feature.API-6D valves are offered with self relieving seats or optional double piston sealing. Special seat compounds are also available. Each valve meets, API-6D, API 6FA and Nace requirements. Options include stem extensions, actuators, pipe pups and specialized coatings.

Design Features

Trunnion mounted ball valves meet all the requirements of API 6D as well as the other design codes; Minimum wall thickness comply with ASME B16.34. Valves are usually supplied with lever,gear box,actuator or bare shaft on customer request
ISO5211 platform design is adopted for the convenience of installing the actuator
Double block and bleed function
Anti-blow-out stem design
The pressure balancing hole is provided on the steel ball
The body is provided with a device for cleaning the valve cavity
Automatic pressure relief function
Fireproof and antistatic design
Sealant injection system for emergency seal
Multiple driving modes facilitate the realization of automatic control
Reliable stem seal and low operating torque. Metal hard seal seat can be made according to requirements


Design & Manufacturing Standard:API 608, API 6D, ASME B16.34,
Face to face:ASME B16.10 ,API 6D,DIN 3202
Flange Connection Size:ASME B16.5, ASME B16.47, DIN 2543~2550, ASME B16.25
Butt Welding Size:ASME B16.25.
Test and inspection: API 6D, API 598


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