Directional Spool Valve H-4WEH25HD6X/6EG24N9SK4QMABG24 - Bosch Rexroth R901421078

During the rapid stroke of a large cylinder the cross section of the directional valve sets the cycle time. The H-4WEH25HD6X/6EG24N9SK4QMABG24 is built in size 25 for that reason and passes up to 700 l/min at a maximum operating pressure of 350 bar.

Benefits

• 700 l/min maximum flow in size 25 to connection diagram ISO 4401-08-08-0-05.
• 350 bar maximum operating pressure with NBR seals and HL hydraulic fluid.
• Spool symbol D with 2 switching positions and 4 ports.
• External pilot oil supply and external pilot oil return for circuits with their own pilot pressure.
• Solenoid actuation on 24 V DC through a 3-pole (2 + PE) connector to EN 175301-803.
• 19.12 kg weight, so lifting equipment should be planned for installation.

Technical data

Applications

The valve controls main and rapid stroke cylinders on presses, shears and injection moulding machines in the larger sizes. Pilot supply and pilot return run separately, which keeps the pilot stage clear of main pressure. Size 25 with subplate mounting.

Manufacturer

Bosch Rexroth, material number R901421078, product family H-4W.H... Switching times, pilot oil demand and installation dimensions are given in the datasheets Directional spool valves, pilot-operated (RE 24751) and Hydraulic valves and hydro- (RE 07600-B).