Directional Spool Valve 4WEH 16 W7X/6EG24N9K4/B10 - Bosch Rexroth R978012892

Where the control oil comes from a circuit of its own, the 4WEH 16 W7X/6EG24N9K4/B10 fits with external pilot oil supply and external pilot oil return. The pilot-operated spool valve switches up to 300 l/min and is released to 280 bar operating pressure. It builds in size 16 to mounting pattern ISO 4401-07-07-0-05 and carries spool symbol W with three switching positions across four ports. The solenoid runs on 24 VDC through a 3-pole connector (2 + PE) to EN 175301-803 and the weight is 9.6 kg.

Benefits

• External pilot oil supply and external pilot oil return
• Flow up to 300 l/min, maximum operating pressure 280 bar
• Size 16 to mounting pattern ISO 4401-07-07-0-05
• Spool symbol W, 3 switching positions, 4 ports, subplate mounting
• Supply voltage 24 VDC, 3-pole connector (2 + PE) to EN 175301-803
• NBR seals for HL fluid, weight 9.6 kg

Technical data

Applications

External piloting keeps the control pressure steady even while the main circuit runs unloaded, which suits plants with long idle phases. Two extra lines have to be planned for supply and return of the control oil. At 9.6 kg valve weight the subplate has to be sized accordingly, and so do the mounting bolts for 280 bar.

Manufacturer

Bosch Rexroth, material number R978012892, product family H-4W.H.. The two documents on file include the data sheet with characteristic curves and switching times.