Humphrey 250A-21-N Three Way Pneumatic Pilot Valve is a 1/4-inch pilot valve from Humphrey designed to control pneumatic circuits with a three-way configuration. As a pilot valve, it uses a controlled air signal to shift a larger valve or actuator in automation systems. Model 250A-21-N represents Humphrey's line of pneumatic pilot valves intended for compact, reliable signal routing in pneumatic control applications.
