Proportional Directional Valve 4WRZE16W6-180-7X/6EG24N9TK31/A1D3M - Bosch Rexroth R901476625

Accelerating and decelerating large hydraulic cylinders in fine steps is what this pilot-operated size 16 proportional directional valve was built for. It reads an analog ±10 V command value and releases 180 l/min nominal flow, peaking at 460 l/min at 350 bar.

Key benefits

• 180 l/min nominal flow with 460 l/min maximum keeps long-stroke cylinders supplied for short cycle times.
• On-board electronics sit on the valve itself, so the ±10 V command value goes straight to the connector without a separate amplifier.
• A pressure reducing valve in the pilot stage keeps pilot pressure steady even when working pressure swings up to 350 bar.
• External pilot oil supply with internal pilot oil return lets the control circuit be fed independently of the main circuit.
• Connection pattern ISO 4401-07-07-0-05 and NBR seals for HL mineral oil suit any standard size 16 subplate.

Applications

Size 16 is chosen where an NG10 valve cannot pass enough oil: presses, injection moulding machines and large test rigs. External pilot oil supply helps when main pressure drops below the required pilot pressure during part of the cycle. At 12.2 kg the valve needs a flat, properly bolted subplate.

Manufacturer

Bosch Rexroth, material number R901476625, product family 4WRZ(E). Characteristic curves, step responses and mounting dimensions are documented in data sheet RE 29115, with the series overview in RE 07600-B.