A Normally Closed (NC) version of the Series 307 Pilot Operated solenoid valves refers to a type of valve that is in a closed state in the absence of an electrical signal to the solenoid. In other words, when the solenoid is not energized, the valve restricts the flow of fluid. When an electrical signal is applied to the solenoid, it causes the valve to open and allow fluid to flow freely through it.
The Normally Closed version of the Series 307 Pilot Operated solenoid valves is typically used in applications where fluid flow needs to be allowed when an electrical signal is applied to the solenoid. For example, in a pneumatic system, a Normally Closed valve might be used to control the flow of compressed air to a cylinder, closing to stop the flow when the solenoid is not energized and opening to allow air to flow when the solenoid is energized.
In summary, the Normally Closed (NC) version of the Series 307 Pilot Operated solenoid valves is a type of valve that restricts fluid flow in the absence of an electrical signal, and allows fluid to flow freely when an electrical signal is applied to the solenoid.
