Proportional Directional Valve 4WRZE25W6-325-7X/6EG24N9TK31/F1D3V - Bosch Rexroth R901070153

Once an axis of size 25 asks for more than 300 l/min under stepless control, the layout of the pilot circuit becomes the deciding detail. This valve works at 325 l/min nominal flow, draws its pilot oil from a separate external supply and returns it internally to tank.

Benefits

• 325 l/min nominal flow, with up to 870 l/min possible on the valve side
• External pilot oil supply holds pilot pressure steady even while operating pressure swings up to 350 bar
• Internal pilot oil return saves the separate Y line on the manifold
• Spool symbol W6, three switching positions, four ports to ISO 4401-08-08-0-05
• Command value 4-20 mA on 24 VDC on-board electronics, mass 20.6 kg

Application

The valve serves presses, rolling mill drives and large test rigs where several axes share one common pilot supply. Internal return is permissible as long as tank pressure in the main circuit stays low enough. At 20.6 kg it is one of the more compact spool valves in its size class.

Manufacturer

The manufacturer is Bosch Rexroth and the material number is R901070153. Data sheet RE 29115 carries all characteristic curves and installation data, complemented by overview RE 07600-B.