DELCO Normally Closed Stem Welded Pneumatic Angle Seat Piston Valve, High-Temperature & Leak-Proof Control

A pneumatic angle seat valve offers a high flow rate and can operate at zero pressure difference and high temperatures. It is also suitable for handling high viscosity and dirty media. To operate in an explosive environment (Eex area), simply place the pilot valve outside the area. The valve is controlled by a pneumatic actuator driven by a three-way solenoid valve. The pilot medium pressure enters the actuator cylinder, pushing the piston to open or close the gasket through the stem. The gasket returns to its default position thanks to the return spring in the pneumatic actuator.

• Design: Typically has one port on the pneumatic head.
• Operation: Uses a spring to return to its default position. It is further classified into normally open and normally closed types based on the spring function.