Directional Spool Valve H-4WEH25HC6X/6EG24N9S2K4QMAG24 - Bosch Rexroth R901262670

From size 25 upwards solenoid force is no longer enough for direct actuation, so this valve works pilot-operated. Pilot oil is supplied and returned externally, which decouples pilot pressure from working pressure and switches up to 700 l/min of main flow reliably.

Advantages

• 700 l/min maximum flow in size 25, handled through the pilot stage
• External pilot oil supply and external pilot oil return, independent of pressure in the main gallery
• Maximum operating pressure 350 bar, symbol C with two switching positions
• Connection diagram ISO 4401-08-08-0-05 for size 25 subplate mounting
• Solenoid actuation at 24 VDC through a 3-pole connector (2 + PE) to EN 175301-803
• NBR seals for HL hydraulic fluid, 18.36 kg mass

Application

It is used in presses, forging plant and power units with wide piston areas. Because the pilot circuit has its own supply, the valve still switches cleanly when the main circuit is running unpressurised. That is the normal case during rapid traverse and pressing stages.

Manufacturer

Bosch Rexroth, material number R901262670. All sizing data and characteristic curves are given in the data sheet Directional spool valves, pilot-operated (RE 24751) and Hydraulic valves and hydro- (RE 07600-B).