Proportional Directional Valve 4WRZE25E1-325-7X/6EG24N9ETK31/F1D3M - Bosch Rexroth R901188957

Where a curing press closes its mould quickly and then holds it under pressure, the mix of high flow and a defined centre position decides the result. The 4WRZE25E1-325-7X/6EG24N9ETK31/F1D3M delivers 325 l/min nominal flow with spool symbol E1 and feeds its pilot stage internally.

Benefits

• Nominal flow 325 l/min in size 25, plant flow up to 870 l/min.
• Internal pilot oil supply and internal return save two lines on the manifold.
• Spool symbol E1 with 3 switching positions for profiles with a defined centre position.
• Current command 4 to 20 mA, on-board electronics, supply 24 V DC.
• Operating pressure up to 350 bar, connection diagram ISO 4401-08-08-0-05, weight 20.66 kg.
• UKCA conformity to SI2016/1091, NBR seals for HL hydraulic fluid.

Applications

The valve moves clamping units, heating platens and tensioning cylinders in rubber and plastics processing. Internal pilot routing makes it independent of a separate control oil pump. A pressure reducing valve in the pilot circuit keeps pilot pressure within limits even at 350 bar system pressure.

Manufacturer

Bosch Rexroth, material number R901188957. Characteristic curves and installation notes are in datasheet RE 29115, further data in the overview RE 07600-B.