Proportional Directional Valve 4WRTEM16W8-220L-4X/6EG24ETK31/A1M - Bosch Rexroth R901558947

Feed axes and press cylinders need a flow that follows the command value instead of the load. This pilot-operated size 16 proportional directional valve meters 220 l/min at up to 350 bar and measures the spool position internally, so the control loop is already closed inside the valve body.

Benefits

• 220 l/min nominal flow with headroom up to 460 l/min covers fast traverse without a second valve.
• Internal spool position feedback holds the setting against flow forces even at 350 bar.
• On-board electronics accept the ±10 V command value directly, so no separate amplifier card is needed.
• Internal pilot oil supply and internal pilot oil return save the X and Y lines on the subplate.
• Interface ISO 4401-07-07-0-05 fits any standard size 16 subplate, weight 11.5 kg.

Applications

The valve is at home in presses, injection moulding machines and test rigs where one axis has to hold position or force against a command value. With 4 ports and 3 switching positions it drives double-acting cylinders as well as hydraulic motors. Where the machine has no separate pilot lines, the internal supply is the simpler route.

Manufacturer

Bosch Rexroth lists this valve under material number R901558947. It belongs to the 4WRTE product family and is supplied with NBR seals for HL hydraulic fluid.