2015年5月22日星期五

Rexroth Type Electro-Hydraulic Directional Control Valve 4weh10 3 Spool Positions Function section

Product Description
 
Rexroth Type Electro-Hydraulic Directional Control Valve 4weh10 3 Spool Positions is made up of electromagnetic reversing valve and hydraulic explorers to the valve is optimized configuration synthesis. When the electromagnetic coil current and the guide valve switching pilot oil flow direction, used to drive hydraulic control reversing valve valve core, so as to change the oil in the hydraulic system of the oil flow direction. With big thrust wet-type electromagnet, optimize the flow design, greatly reduces the pressure loss, the product has a high pressure, large flow, low energy consumption, strong pollution resistance, light weight, etc. Through the mounting screw, can easily achieve the guide way and drainage way of combination and transformation.

Rexroth Type Electro-Hydraulic Directional Control Valve 4weh10 3 Spool Positions Function section
 
Valves of type WEH are directional spool valves with electrohydraulic actuation. The control the start, stop and direction of a flow. These directional valves basically consist of the main valve with housing, main control spool, one or two return springs and , as well as pilot valve with one or two solenoids “a”and/or “b”. Main control spool in the main valve is held in the zero or initial position by springs or through pressurization. In the depressurized condition, the two spring chambers and are pressureless connected to the tank via pilot valve. The pilot valve is supplied with pilot oil via pilot line. The supply can be provided internally or externally (externally via port X). When the pilot valve is operated, e.g. solenoid “a“, pilot spool is pushed to the left and spring chamber is therefore pressurized to pilot pressure. Spring chamber remains pressureless.

Rexroth Type Electro-Hydraulic Directional Control Valve 4weh10 3 Spool Positions Function section

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