Proportional Directional Valve 4WRZE16W8-125-7X/6EG24N9EK31/A1D3M - Bosch Rexroth R901455677

When the returns of several consumers meet in one line, pressure builds up there and acts on the pilot springs. This version of the 4WRZE16W8-125 therefore routes pilot oil through its own Y line straight to tank while still drawing it internally from the P channel, which avoids an external supply. The valve is rated at 125 l/min nominal with a 460 l/min limit.

Benefits

• External pilot drain keeps the pilot stage clear of back pressure in the shared return.
• Internal pilot supply from the P channel, no dedicated pilot pump required.
• 125 l/min nominal flow, limit 460 l/min at 350 bar.
• Command value plus/minus 10 V, on-board electronics fed from 24 VDC.
• Pressure reducing valve in the pilot stage, spool symbol W8 with 3 switching positions.
• Concealed manual override, UKCA conformity, weight 12.56 kg.

Applications

This combination is chosen in multi-axis systems where several valves share one return line. The smaller 125 l/min rating suits clamping, infeed and auxiliary axes. The Y line should run directly to tank without a check valve.

Manufacturer

Manufactured by Bosch Rexroth, material number R901455677. The 2 attached manufacturer datasheets give characteristic curves, performance limits and mounting dimensions.