Proportional Directional Valve 4WRTE32V400P-4X/6EG24ETK31/A1V - Bosch Rexroth R901170733

Controlling a large axis without building a dedicated pilot circuit is what this 4WRTE version is for: pilot oil is supplied internally and returned internally. The valve meters 400 l/min nominal flow at up to 350 bar and regulates spool position through internal feedback with on-board electronics.

Benefits

• Internal pilot oil supply and internal pilot oil return, so no separate pilot circuit is needed.
• Nominal flow 400 l/min with up to 1600 l/min possible through the valve.
• Operating pressure up to 350 bar, subplate mounting to ISO 4401-10-09-0-05.
• Internal spool position feedback keeps the ±10 V command value and the opening cross section closely matched.
• Spool symbol V with a linear fine control range for smooth acceleration and braking ramps.
• FKM seals for HL hydraulic fluid, 24 VDC supply through a 7-pole connector (6 + PE) according to EN 175201-804.

Applications

The valve is installed in presses, forging lines and large test rigs that keep system pressure permanently available. Because the pilot stage feeds from the main circuit, piping work on the control manifold drops noticeably. For plants whose main circuit is unpressurised at times, the externally piloted version is the better choice.

Manufacturer

Bosch Rexroth, material number R901170733. Mounting is on a subplate to ISO 4401-10-09-0-05, which is ordered separately.