Hydraulic directional control valve controlled by electromagnet

摘要

The directional control valve has the pre-control valve (32,33) formed between the valve needle (33) and the valve seat (32). It is inserted in a pipe (21) between the inlet connection (28) and a reaction chamber (30) of the slider (21). The reaction chamber is permanently connected to the outlet connection (29) via a pipe (36). The slider is made as a pressure-relieved piston with a seal (22), and is loaded in the opening direction of the throughflow valve (24,25) by a spring (23).