Classification of solenoid directional valve

Variety of 4we4-60 bosch hydraulic valves, according to the number of its working position and the number of channels can be divided into two position three way, two position four way, three position four way and so on; according to its reduction and positioning can be divided into the form of the spring, steel ball positioning, no reset spring type; according to the connecting form of the body and the electromagnet can be divided into flange connection and screw connection; according to the structure of the distribution of its power can be divided into dry and wet type, each type has AC, DC, the whole and other forms, and there are many kinds of power supply voltage, so there are many differences in its structure.

1.Classified by the number of interfaces and the number of switches.Interface refers to a variety of connection which tubing into and exit connecting line on the bosch hydraulic valves, the oil inlet is usually labeled as P, the oil return port is R or T, and the oil outlet is represented by B and A. Rexroth directional control valve core can be moved by the number of positions known as the number of the switch position, usually we will be called “pass”, the position of the rexroth directional valve core is called “position”. Therefore, according to the number of its working position and the number of the number of channels can be divided into two position three way, two position four way, three position four way and so on.
2.Classification by operation.To promote the rexroth directional control valve movement of the hand, foot, mechanical, hydraulic, electromagnetic and other methods.
3.Classification according to its reduction and positioningIt can be divided into the spring type, steel ball positioning, no reset spring type.
4.Classification by structure of electromagnetCan be divided into dry and wet type.