Double Block and Bleed
Both in valves adopting the single piston effect or double piston effect seat design, UA Trunnion Mounted ball valves permit the body cavity to be bleed through the drain plug valve with the ball in the fully closed or fully open position. This permits the checking of the seating integrity without the need to turn the ball in its fully closed position, this avoided out generating troubles for the operation of the line.
Parts and Material List
The range can be integrated with a range of pneumatic / electric actuators and complete flow control packages. These valves service a wide spectrum of industries such as chemical, petrochemical, oil, gas and pharmaceutical industries and provide an easy and convenient way of providing 2 separate isolations and a visual confirmation of a tight seal.