Directional Spool Valve H-4WEH25HE6X/6EG12N9K4 - Bosch Rexroth R901229177

The solenoid runs on 12 V direct current and therefore matches controls with a low on-board voltage. The pilot-operated size 25 main stage switches with spool symbol E in three positions, passes up to 700 l/min and holds 350 bar operating pressure. Pilot oil comes from an external circuit and returns to it.

Benefits

• Supply voltage 12 VDC for controls with a low on-board voltage
• 700 l/min flow in size 25
• 350 bar permissible operating pressure, connection diagram ISO 4401-08-08-0-05
• Spool symbol E with three switching positions across four ports
• External pilot oil supply and external return
• 19.2 kg mass, NBR seals for HL hydraulic fluid

Application

Valves like this sit in mobile working machines and in plants with a 12 V control circuit whose cylinders call for large flows. The external control circuit feeds the pilot stage independently of the working pressure. Wiring runs through a 3-pole connector (2 + PE) according to EN 175301-803.

Manufacturer

Bosch Rexroth lists this directional valve H-4WEH25HE6X/6EG12N9K4 under material number R901229177. The data sheets Directional spool valves, pilot-operated (RE 24751) and Hydraulic valves and hydro- (RE 07600-B) carry the characteristic curves and installation dimensions. At 12 VDC the cable cross section has to be chosen so that the voltage drop at the solenoid stays small.