3 pieces side entry bolted valve design.
Twin ball valves consist of two sealing elements (blocks) in one solid body.
This configuration provides the best option for isolation service where double block and bleed is required. System isolation could be realized also with due individual ball isolation valves, a connecting pipe and a bleed valve with an expensive cost and considerable weight.
The balls of trunnion mounted configuration are supported by bearing plates hold by the end adaptors. In such a way the pressure loads are transferred to the valve body granting a smooth rotation of the ball with low torque levels and reduced seat seal wear.
They are manufactured in a wide range of sizes and pressure classes typically from forgings.
