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What are the commonly used directional valves of t

  Electric directional valve. Electric directional valve of four-column hydraulic press is called stroke valve. It is to be installed near the hydraulic cylinder of the hydraulic press and the valve is displaced by stopping or CAM mounting on the moving parts.
Solenoid directional valve. The solenoid directional valve of the four-column hydraulic press is a directional valve, which uses the transposition of the valve core in the electromagnet suction groove.
Electro-hydraulic directional control valve. The electro-hydraulic directional valve of the four-column hydraulic press is flexible and easy to be automated, but the electromagnet suction is limited and it is difficult to switch the large flow rate. Hydraulic directional valves of four-column hydraulic press are rarely used alone, and small directional valves are needed to change the flow direction of hydraulic oil control. Standard components usually combine solenoid and hydraulic valves into electro-hydraulic directional valves.
Hydraulic directional valve. Four-column hydraulic directional control valve is a directional control valve that uses pressure oil to push the spool to move.
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