Proportional Directional Valve 4WRZE16W8-180-7X/6EG24N9EK31/A1D3V - Bosch Rexroth R901526015

Large directional valves only behave repeatably when the pilot stage sees constant pressure. The 4WRZE16W8-180-7X in size 16 solves this with a built-in pressure reducing valve, providing 180 l/min nominal flow and up to 460 l/min maximum flow at 350 bar.

Benefits

• The integrated pressure reducing valve keeps pilot pressure constant even while system pressure varies up to 350 bar.
• 180 l/min nominal flow and 460 l/min peak flow in size 16.
• A ±10 V command value with on-board electronics removes the need for an external amplifier.
• Internal pilot oil supply with external pilot oil return suits raised tank pressure.
• Concealed auxiliary actuation allows the switching position to be checked without removal.
• FKM seals at 12.16 kg mass, the valve carries UKCA marking under SI2016/1091.

Application

Intended duties are main axes in presses, rolling mills and test rigs where large oil volumes are distributed precisely. Spool symbol W8 with a blocked centre position stops the axis if the signal fails. The subplate must match ISO 4401-07-07-0-05.

Manufacturer

Bosch Rexroth, material number R901526015. Characteristic curves and installation dimensions are given in the data sheet Proportional directional valve, pilot-operated (RE 29115) and Hydraulic valves and hydro- (RE 07600-B).