The reversing valve is mainly composed of an electromagnetic reversing valve and an electro-hydraulic reversing valve according to the driving original structure.

According to the position of the valve core, it can be divided into two-position two-way, two-position three-way, three-position four-way, three-position five-way and other models.

The three-position reversing valve can be divided into O, P, H, Y, M type according to the first floor according to the median function of the spool.

The median function of the three-position reversing valve is a very important function. In the hydraulic system, such reversing valve needs to select the appropriate mid-range function according to the actual needs of the oil circuit. If the oil path requires the O-valve, However, if you accidentally use the H-type, you will not be able to lock the piston cylinder in the middle position, which will cause the piston cylinder to shift under the action of external force. In serious cases, danger may occur.