Proportional Directional Valve 4WRKE25W6-220P-3X/6EG24K31/A1D3M - Bosch Rexroth R900738497

Both pilot oil paths sit outside the main circuit here, supply as well as return. Pilot control therefore works independently of system pressure while 220 l/min nominal flow is set from a ±10 V command value.

Advantages

• External pilot oil supply and external return, separate pilot circuit
• Nominal flow 220 l/min, maximum flow up to 870 l/min
• Command value ±10 V, 24 VDC supply on a 7-pole connector to EN 175201-804
• Symbol W6 with open centre, three switching positions
• Linear characteristic curve with fine control range, operating pressure up to 350 bar
• Connection diagram ISO 4401-08-08-0-05, 17.8 kg, NBR seals for HL hydraulic fluid

Applications

Suited to systems with accumulator charging or a pressure-controlled pump whose main pressure occasionally falls below the minimum pilot pressure. A small auxiliary unit then handles pilot supply. Symbol W6 relieves cylinder and lines at standstill.

Manufacturer

Bosch Rexroth, material number R900738497. The article carries type designation 4WRKE25W6-220P-3X/6EG24K31/A1D3M.