Trunnion Ball Valve

Trunnion Mounted Ball Valve – A trunnion mounted ball valve has additional mechanical anchoring at the top and bottom on the ball. This special mounting is suitable for larger and higher pressure valves. Moreover, this design allows for reduction in valve torque as the ball is supported in two places. Every ball valve is trunnion mounted. The trunnion mounted stem 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. Shield TM trunnion mounted ball valves are utilized in some of the most demanding processes in virtually every industry. The extensive range includes soft-seated designs that provide excellent leak-resistance; top entry valves with a one-piece body design that allow in-line maintenance and metal-seated valves that provide superior operation at high temperatures as well as providing abrasion resistance in demanding applications. Welded body designs are ideal for buried service applications to decrease potential leak points and reduce the potential of fugitive emissions from flanges.