Proportional Directional Valve 4WRZE25E325-7X/6EG24ETK31/F1D3M - Bosch Rexroth R901094532

When manifold pressure jumps between idle and press stroke, the pilot stage needs a supply of its own. The 4WRZE25E325-7X/6EG24ETK31/F1D3M has a pressure reducing valve built in, draws its pilot oil internally and returns it internally while metering 325 l/min nominal flow with spool symbol E.

Benefits

• Built-in pressure reducing valve keeps the pilot pressure steady even at operating pressure up to 350 bar
• Internal pilot oil supply and internal pilot oil return, so the manifold needs no X and no Y line
• 325 l/min nominal flow, max. flow 870 l/min in size 25
• 4...20 mA current command, insensitive to voltage drop over long cable runs, 24 VDC supply
• Spool symbol E with 3 switching positions and 4 ports, interface ISO 4401-08-08-0-05
• NBR seals for HL hydraulic fluid, weight 20.54 kg, UKCA conformity

Applications

Presses, injection moulding machines and power units with strongly changing load pressure are the typical hosts, wherever switching behaviour has to stay identical across the whole cycle. The current command suits control cabinets placed far from the valve. Mounting is on a size 25 subplate to ISO 4401-08-08-0-05.

Manufacturer

Bosch Rexroth builds this valve under material number R901094532. Characteristic curves, pilot oil demand and installation dimensions are given in data sheet RE 29115 for the pilot-operated proportional directional valve and in overview RE 07600-B.