Piston valve S U T X series

hydraulically-operatednormally closed

The S U T X sequence valves are used for pressure control. They are direct-acting and normally closed. They are available in two nominal sizes for flows up to 150 l/min and in four pressure adjustment ranges. Opening takes place by means of a pilot pressure that, acting on a small piston, resists the force of the adjustment spring. The valve can be easily modified to get any one of the four versions S: U, T, X, turning the upper and the bottom covers in order to obtain the X and Y internal connections, as indicated in par. 7. The figure represents the section of a type S valve.