Proportional Directional Valve 4WRZE25W9-220-7X/6EG24N9EK31/F1M - Bosch Rexroth R900747301

Shared return lines, coolers and filters raise tank pressure and disturb the pilot stage. The 4WRZE25W9-220-7X/6EG24N9EK31/F1M therefore discharges its pilot oil externally through Y while taking it internally, and meters 220 l/min at up to 350 bar.

Benefits

• External pilot return through Y keeps the pilot stage independent of back pressure in the return line
• Internal pilot oil supply, so no X line is needed
• 220 l/min nominal flow with a maximum size flow of 870 l/min
• Concealed manual override and a build without a pressure reducing valve in the pilot stage
• Command value 4 to 20 mA, 24 V DC supply, 7-pole connector (6 + PE)
• Mass 20.58 kg, spool symbol W9, NBR seals, UKCA conformity

Applications

The build fits plants with a long shared return line, for example press lines and test halls. It drives large size 25 cylinders at 220 l/min. Because only the Y line is added, the piping effort stays modest.

Manufacturer

Bosch Rexroth, material number R900747301, type designation 4WRZE25W9-220-7X/6EG24N9EK31/F1M. The datasheets Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B) belong with it.