A directional control valve is a directional control valve with more than two flow forms and more than two oil ports.

A reversing valve is a directional control valve with more than two flow modes and more than two oil ports

It is a valve that realizes the communication, cutting off and reversing of hydraulic oil flow, as well as pressure unloading and sequential action control. It can be divided into manual reversing valve, electromagnetic reversing valve

, electro-hydraulic reversing valve, etc.

Also known as Chris valve, a type of valve with a multi-directional adjustable channel that can change the flow direction of the fluid in a timely manner.

During operation, the drive shaft is rotated by the drive transmission mechanism outside the valve, driving the rocking arm and starting the valve plate, so that the working fluid sometimes flows from the left inlet to the valve

The lower outlet sometimes changes from the right entrance to the lower outlet, achieving the purpose of periodically changing the flow direction.

This type of change valve is widely used in petroleum and chemical production, and is most commonly used in synthetic ammonia gas generation systems. In addition, the reversing valve can also be made into a disc-type structure, which is mostly used in situations with smaller flow rates. When working, you only need to turn the handwheel to change the flow direction of the working fluid through the valve disc.