Hydraulic balance valve Excavator hydraulic cylinder valve core CKCD-XCN

The relief valve is a special advantage of the hydraulic system, which is different from the mechanical transmission system and plays the role of overload protection.

For example, in the mechanical transmission system, at the part where the two gears mesh, if you fall into a metal sheet, because the prime mover is strong, it will be hard to wrap the metal sheet into it until the two gears are damaged.

However, the hydraulic system can be set or adjusted by the relief valve (manual or electric ratio) to achieve hydraulic overload protection.

For example, if the oil motor drives two gears to mesh, when the pressure is set properly, that is, the metal sheet material falls into, and the hydraulic pressure will stop turning when it cannot move, and the parts will not be hard damaged.

However, the pressure of the relief valve, once manually set, becomes a fixed value; However, the electric ratio can adjust its pressure according to the actual specific working conditions through the program to achieve the program setting pressure regulation that matches the load pressure, and the pressure conversion is soft and no impact, and is conducive to energy saving.