Proportional Directional Valve 4WRZ25E220-7X/6EG24N9EK4/D3M - Bosch Rexroth R900959247

When several consumers discharge at once, pressure in the return jumps up for a moment. The 4WRZ25E220-7X/6EG24N9EK4/D3M keeps its pilot stage clear of that, taps pilot oil internally through a pressure reducing valve and controls 220 l/min nominal flow.

Benefits

• Dedicated Y line for the pilot drain, pressure peaks in the return do not reach pilot control.
• Internal supply with pressure reducing valve, an additional X line is not required.
• 220 l/min nominal flow, flow up to 870 l/min, spool symbol E in size 25.
• 20.36 kg weight, 350 bar maximum operating pressure, NBR seals, HL hydraulic fluid.
• Concealed auxiliary actuation, 24 VDC through a 7-pole (6 + PE) plug to EN 175201-804.

Applications

This version is found on multi-axis plants such as sheet metal centres and handling gantries. Several valves switch on the same beat there, and the collecting return answers with pressure peaks. The separate Y line keeps the control loop unaffected by them.

Manufacturer

Bosch Rexroth, material number R900959247. Permitted back pressure in the Y line and the reduced pilot pressure are given in data sheet RE 29115, range overview in RE 07600-B.