Original Main Relief Valve For Excavator ZAX Series 4372038 4654858 4651860 YA00011313

We have other various types of relief valves that you can contact us to know more.

Performance requirements of the hydraulic system on the relief valve:
(1) High accuracy of constant pressure.
(2) The sensitivity should be high.
(3) Work should be stable and free from vibration and noise.

(4) When the valve is closed, the seal should be good and the leakage should be small.

When the hydraulic cylinder suddenly stops moving. Open the relief valve quickly, otherwise. The oil output by the quantitative pump will not be discharged in time, which will cause the system pressure to rise suddenly and exceed the set pressure of the relief valve. It is called dynamic pressure overshoot, which increases the pressure of each component and pipeline in the system and affects its life. The more sensitive the relief valve is. The smaller the dynamic pressure overshoot.

Beijing Silk Road Enterprise Management Services Co.,LTD is a professional company focus on Excavator Spare Parts business. Beijing Silk Road also will responsible with exporting and logistic business.

Founded in 2009, Our company is a leading manufacturer and supplier of Excavator Spare Parts in China.

Our products including: Excavator Spare Parts, Hitachi Excavator Parts, Kobelco Excavator Parts, Engine Parts and so on.

We have many good cooperation business relationship at home and abroad, and a good team together, We will continue to make great efforts to achieve a win-win future for our global customers!