Trunnion Ball Valve

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.


Size                                   :    1/2″ – 24, DN50 – DN600

Rating                             :   Class150 – Class1500

Working Pressure   :   ASME150, ASME300, ASME600, ASME900

Material                         :   Carbon Steel, Alloy Steel, Austentic Stainless Steel, Duplex Stainless Steel, High Alloy Steel, Nickel Based Alloy

Temperature               :   -29°C  – 500°C / 0°F – 900°F

End                                   :   Flanged, Butt Welding

Manufacturer            :   BONNEY FORGE, KITZ, Other Request

» Standard double block sealing performance

» Full die forged structure for all pressure containing parts

» Low operation torque design

» Anti blow-out proof stem design

» Standard split & bolted design for body-closure connection

» High quality stem gasket for reliable tightness and low emission performance