Proportional Directional Valve 4WRZ25E220-7X/6EG24N9TK4/D3M - Bosch Rexroth R900732452

A dedicated, finely filtered pilot branch extends the service life of the pilot stage. The 4WRZ25E220-7X/6EG24N9TK4/D3M is built with external supply for that mode of operation, limits pressure internally and controls 220 l/min nominal flow.

Benefits

• External supply from a dedicated pilot branch, filtration grade and pressure can be set apart from the working circuit.
• Pressure reducing valve in the pilot stage, the branch may run at higher pressure.
• Internal return, no Y line has to be routed.
• 220 l/min nominal flow, flow up to 870 l/min, spool symbol E in size 25.
• 20.3 kg weight, 350 bar maximum operating pressure, NBR seals, HL hydraulic fluid.

Applications

The version is used in plants with heavy contamination, for example in foundries and heavy industry. Pilot oil passes a fine filter there while the working circuit stays coarser filtered. Concealed auxiliary actuation allows function checks without an amplifier signal.

Manufacturer

Bosch Rexroth, material number R900732452. The required cleanliness class and pilot data are given in data sheet RE 29115, supplemented by RE 07600-B.