Directional Spool Valve 4WEH16W7X/6EG24NETK4/10B08 - Bosch Rexroth R900978255

Spool form W determines how pump, tank and the two service ports are connected across the three switching positions. This pilot-operated size 16 valve is rated for 300 l/min and a maximum operating pressure of 280 bar, switched at 24 VDC.

Key benefits

• Spool symbol W across three switching positions, the spool form is fixed when the axis is designed and is factory-fitted here.
• 300 l/min maximum flow in size 16 to connection diagram ISO 4401-07-07-0-05.
• 280 bar maximum operating pressure for axes with high holding forces.
• Internal pilot oil supply and internal return, so the manifold needs no additional lines.
• Solenoid actuation at 24 VDC with a connector, 3-pole (2 + PE) according to EN 175301-803.
• 9.5 kg weight with four ports and NBR seals for hydraulic fluid HL.

Technical data

Applications

The valve is used in control manifolds of presses, hoists and test rigs where the port connections in the centre position are defined by symbol W. Its 300 l/min rating suits cylinders with large swept volumes. Pilot control works internally, so an ISO 4401-07-07-0-05 subplate is sufficient. NBR seals and hydraulic fluid HL match standard mineral oil hydraulics.

Manufacturer

The manufacturer is Bosch Rexroth and the material number is R900978255. Curves, switching times and dimensions are documented in datasheet RE 24751 on pilot-operated directional spool valves, complemented by the overview RE 07600-B.