? The normally closed valve shall be of stainless steel construction with a spring to adjust the opening pressure
The valve internals are of 316 stainless steel and the inner valve shall have EPDM resilient compound for seating
? A separate port will sense pressure to open the valve when system pressure exceeds the set-point
? Maximum working temperature: 180°F/82 °C
? Maximum working pressure: 400psi/27.6bar
The 18FR is a remote sensing, high capacity, spring diaphragm actuated, normally closed valve.
The inner valve is held closed by the spring. When the sensed pressure exceeds the the spring setting, the valve opens.