Directional Spool Valve 4WEH16HD7X/6EG24N9SK4 - Bosch Rexroth R901028025

As soon as a cylinder is reversed at up to 300 l/min, a directly operated solenoid no longer provides the required force. The pilot-operated 4WEH16HD7X/6EG24N9SK4 directional spool valve in size 16 takes over that job and switches two positions to spool symbol D at a maximum operating pressure of 280 bar.

Advantages

• Pilot-operated design for up to 300 l/min in size 16, the 24 VDC solenoid only has to move the pilot valve.
• Two switching positions to spool symbol D, four ports and the ISO 4401-07-07-0-05 connection diagram for mounting on a standard subplate.
• External pilot oil supply and external pilot oil return, so the pilot pressure stays independent of the pressure in the main channel.
• Electrical connection through a connector, 3-pole (2 + PE) according to EN 175301-803, the valve can be wired without opening the solenoid.
• NBR seals for hydraulic fluid HL, weight 10.26 kg.

Application

The valve controls the direction of oil flow in presses, lifting gear and machine tools where large cylinders or hydraulic motors have to be moved. Subplate mounting to ISO 4401-07-07-0-05 allows it to sit on control manifolds and valve stacks without a special adapter. Because pilot oil is fed in and returned externally, the valve suits circuits with a separate pilot circuit or with high tank pressure.

Manufacturer

Bosch Rexroth, material number R901028025. Further details are given in the data sheets Directional spool valves, pilot-operated (RE 24751) and Hydraulic valves and hydro- (RE 07600-B).