Proportional Directional Valve 4WRZ25W6-220-7X/6EG24N9TK4/D3M - Bosch Rexroth R900726580

Machines with separate high and low pressure branches cannot always feed pilot control from the circuit currently active. The 4WRZ25W6-220-7X/6EG24N9TK4/D3M is therefore fed externally, limits pressure inside the valve and controls 220 l/min nominal flow.

Benefits

• External pilot supply, the source can be chosen freely from the branch that is permanently pressurised.
• Own pressure reducing valve, a high-pressure branch can serve as the source as well.
• Internal return through the tank channel, only one additional line is needed.
• 220 l/min nominal flow, flow up to 870 l/min, spool symbol W6 in size 25.
• 20.56 kg weight, 350 bar maximum operating pressure, concealed auxiliary actuation.

Applications

Two pressure stages are found on clamping fixtures, drawing presses and test rigs with rapid and force strokes. Pilot control is then taken from the branch that carries pressure across the whole cycle. The valve brings that pressure down to its own level.

Manufacturer

Bosch Rexroth, material number R900726580. Permitted supply pressure and reduced pilot pressure are given in data sheet RE 29115, range overview in RE 07600-B.