Trunnion ball valve have a mechanical means of anchoring

Trunnion ball valve have a mechanical means of anchoring, the ball at the top and the bottom, this design is the standard design applied on larger and higher pressure valves.
The ball is operated by a sealed spindle to which the operator is attached. Ball valves are intended to be used as on/off flow control devices and are not to be used to throttle fluid flow. The valves should always be either fully open or closed. BFE Trunnion Ball valves design is developed using the latest software based analysis tools.