Proportional Directional Valve 4WRLD16V1-250P-4X/MPT/24ND6T - Bosch Rexroth R901492706

Starting and braking a heavy axis calls for resolution around mid position, while the rest of the cycle calls for flow. The 4WRLD16V1-250P-4X/MPT/24ND6T answers that with spool symbol V1 and its fine control range, delivering 250 l/min nominal flow, 800 l/min maximum, at 280 bar. A digital axis controller is integrated in the valve.

Key benefits

• Spool symbol V1, linear with a fine control range for gentle starting of heavy masses.
• 250 l/min nominal flow and 800 l/min peak at 280 bar operating pressure.
• Integrated digital axis controller, so position control runs in the valve instead of the machine control.
• 12-pole connector (11 + PE) to EN 175201-804 for 24 VDC supply, ±10 V command value and signals.
• Internal spool position feedback, 3 switching positions, 4 ports.
• Mounting pattern ISO 4401-07-07-0-05, NBR seals, 12.64 kg valve mass.

Applications

The valve is used on position-controlled cylinder axes in presses, forming machines and test rigs. With the controller inside the valve, a separate controller module in the cabinet is no longer needed and the control loop stays short. Pilot oil supply and pilot oil return run internally, so no extra pilot lines are required. UKCA conformity to EMC SI2016/1091 is documented.

Manufacturer

Bosch Rexroth, material number R901492706. Characteristic V1 and the controller version can only be told apart from the type code, so always quote the material number.