The working principle of angle seat valve

An angle seat piston valve is a pneumatically-controlled valve with a piston actuator providing linear actuation to lift a seal off its seat. The seat is set at an angle to provide the maximum possible flow when unseated. Angle seat piston valves are particularly suited to applications where high temperatures and large flow rates are required, such as steam or water. When used in reverse some models of angle seat piston valve will eliminate water hammer when operated.

Angle seat valves are 2/2-way pneumatically actuated piston valves. The piston actuator provides linear motion that lifts the seal off its seat. Because the seat is positioned at an angle, there is minimal obstruction to flow in the open position, resulting in excellent flow and low pressure loss. They are used to regulate the flow of liquids, gases, steam, vacuum and even corrosive fluids.

They can also operate with high temperatures and highly viscous media, even at zero differential pressure. The robust design makes angle seat valves a popular choice for harsh applications and they have a very long cycle life.

They are therefore an excellent long-life alternative to ball valves. These valves are also a suitable replacement for solenoid valves, especially for contaminated viscous media where typical solenoid valves can fail.