Product Description High-flow hydraulic one-way valve is commonly used to control the hydraulic support rack of the coal mine, it controls the blockage of high-pressure liquid in the lower cavity of the column (piston cavity), so that the rack plays an auxiliary role: when the upper cavity of the column enters the liquid, At the same time, hydraulically controlled liquid is fed, the lower cavity of the column is unlocked, so that the column falls. And by adjusting the opening pressure of the safety valve installed on the hydraulically controlled one-way valve, the working resistance of the hydraulic bracket is in the nominal value. Specifications Rated Pressure: 50MPa Rated Traffic: 630L/min Interface Passage: User Needs Interface Material: Medium Carbon/Stainless Steel/1 Cr18Ni9