Four-way reversing valve

A four-way reversing valve is a key component for switching the flow of fluids (hydraulic oil, refrigerant, or compressed air) between four ports. It uses a solenoid coil to actuate an internal spool valve, enabling rapid switching between two or more actuators, such as braking-heating or extension-retraction. This valve boasts a compact design and fast response, making it 1.widely used in air conditioning, heat pumps, hydraulic systems, and pneumatic control.
2.It features a copper four-way pipe with an internal spool valve and four threaded or quick-connect connections.
3.The gray-encased coil with blue wiring is used for low-pressure control.
4.A transparent plastic bracket secures the valve.
5.The solenoid actuation achieves millisecond-level response, making it suitable for systems with high-frequency switching.
With its simple structure, fast response, and adaptability to a wide range of media, the four-way reversing valve has become an indispensable core component in modern hydraulic, pneumatic, and refrigeration systems. Proper selection, installation, and regular maintenance ensure efficient, reliable, and safe system operation.