The AIL Trunnion Mounted Ball Valve is the preferred choice of ball valve in higher sizes and pressure ratings, and is used in pipelines and critical process applications. In this design, sealing takes place by allowing the seat to move towards the ball along the flow axis, which leads to lower operating torques over other types of valves. The valves have advanced design features such as a built-in cavity relief mechanism, compact internal trunnion holder, and intrinsic double block and bleed facility. The valves are of two-piece design, bolted/welded at the body connection joint, with flanged/butt weld ends, in reduced and full bore designs and in ratings of ASME Class 150 - 2500.
For details, refer to the TMBV Catalogue No. C1098-1/04.05