Proportional Directional Valve 4WRZE32W8-520-7X/6EG24N9EK31/A1V - Bosch Rexroth R901272130

As soon as several consumers dump into the same tank line, pressure builds there, and the pilot circuit should not see it. The 4WRZE32W8-520-7X/6EG24N9EK31/A1V therefore takes pilot oil internally from the main port and routes the pilot oil return through its own external line. Size 32, 520 l/min nominal flow, up to 350 bar.

Benefits

• Internal pilot oil supply with external pilot oil return needs no extra pilot pump and still keeps the pilot drain unloaded.
• 520 l/min nominal flow, up to 1600 l/min maximum, 350 bar operating pressure.
• Spool symbol W8, three switching positions, four ports, ISO 4401-10-09-0-05 mounting pattern.
• ±10 V command value, on-board electronics, 24 VDC, 7-pole connector (6 + PE) to EN 175201-804.
• FKM seals for HL fluid, concealed manual override, weight 44 kg.

Applications

Suited to plant with a heavily loaded tank line: press lines, hydraulic test benches, rolling and forging equipment running several axes in parallel. The valve mounts on an ISO 4401-10-09-0-05 subplate and the pilot drain runs straight back to tank.

Manufacturer

Bosch Rexroth lists this valve under material number R901272130. Characteristic curves and installation dimensions are given in data sheet RE 29115, RE 07600-B.