These Norgren Prospector Series 3-way valves have an inlet, outlet, and exhaust port and are typically used to pressurize and then exhaust air from such devices as single-acting cylinders. They are available in normally closed or normally open models. The normally closed model exhausts air from the device when in its normal position, and pressurizes the device when actuated. The normally open model pressurizes the device when in its normal position and exhausts air from the device when actuated. The normally closed valve is available with two options: a position indicator pin and an air or solenoid momentary signal operator. The indicator pin can be used to operate a switch or other device to provide a signal for a control circuit. The momentary signal operator is used when it is desirable to control the valve with two alternately applied momentary signals (first signal shifts and holds the poppet; the second allows the poppet to return to its normal position).
