Proportional Directional Valve 4WRGE25V1-350L-1X/315G24EK31/C1V - Bosch Rexroth R901460139

Older control loops often run on plus or minus 10 mA command signals, a format few current valves still accept. This 4WRGE25V1-350L-1X/315G24EK31/C1V takes exactly that signal, controls 350 l/min nominal flow at 350 bar operating pressure, plus works on spool symbol V1.

Key benefits

• Command interface of plus or minus 10 mA matches existing controllers without extra signal conversion.
• Spool symbol V1 for cylinders with unequal piston areas, 3 switching positions on 4 ports.
• FKM seals rated for higher oil temperatures than an NBR build.
• Nominal flow of 350 l/min, peak flow of 870 l/min, operating pressure of 350 bar.
• Internal pilot oil supply with external return, mass of 20 kg, interface ISO 4401-08-08-0-05.

Applications

Valves like this replace legacy stock in rolling mills, forging plants plus test rigs whose host control stays untouched. Spool symbol V1 has to suit the cylinder geometry, otherwise travel speeds drift apart. HL is the intended hydraulic fluid.

Manufacturer

The type reads 4WRGE25V1-350L-1X/315G24EK31/C1V, material number R901460139, manufacturer Bosch Rexroth. At 20 kg this build is heavier than the spool symbol V version because the pilot stage differs.