Working Principle

A hydraulic return check valve is a valve that allows oil to flow in one direction only. When oil flows from the oil inlet to the oil outlet, the valve core is pushed open by the spring force under the action of oil pressure, and the oil passes smoothly. When the oil tries to flow back from the oil outlet to the oil inlet, the valve core is tightly closed under the combined action of the spring force and oil pressure to prevent the oil from flowing in the opposite direction.

Function

- Prevent oil backflow: Ensure that the oil in the hydraulic system flows in the specified direction to avoid problems such as unstable system pressure and malfunction of actuators caused by oil backflow.

- Protective element: It can prevent oil backflow caused by sudden changes in system pressure or external factors from damaging hydraulic pumps, hydraulic cylinders, hydraulic motors and other components.

Why choose us:
1. After long-term accumulation, we have a wide range of excavator spare parts
2. We can give you a better price
3. We can control the quality
4. We can produce products according to the samples provided by customers
5. We can produce products according to customers' requirements.

Backflow Check Valve Product Pictures:

FAQ:
1.What do you mainly produce?

A;Our main business hydraulic Spare Parts,safety valve,Gear pump,hydraulic pump,control valve,Trave Motor Assy,swing motor,Seal kit, Electric parts,solenoid valve, engine assembly.etc.

2, Do you have stock for the goods?

A;We have plenty stock for many items in the warehouse.

3. Do you test all your goods before delivery?

A: Yes, we have a 100% test before delivery.

4.I know only the excavator model, but can not offer parts No., what should I do ?

A;If possible, you can send us the old photo, nameplate or the size for reference.

5.can I order one of our samples for testing first?

A: Of course!

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