Directional Spool Valve 4WEH16HR7X/6EG24N9K4 - Bosch Rexroth R901072176

Where the manifold provides both a separate pilot line and a separate pilot return, this pilot-operated size 16 directional spool valve with external supply and external return is the matching part. It carries up to 300 l/min at a maximum of 280 bar and shifts three positions to spool symbol R at 24 VDC.

Key benefits

• External pilot oil supply and external return, pilot pressure and return can be routed independently of the main circuit.
• Spool symbol R across three switching positions, the spool form is fixed and is shifted by solenoid actuation at 24 VDC.
• 300 l/min maximum flow in size 16 to connection diagram ISO 4401-07-07-0-05.
• 280 bar maximum operating pressure for axes held and reversed under load.
• Connector, 3-pole (2 + PE) according to EN 175301-803 for wiring to the usual machine building standard.
• 10.34 kg weight with four ports and NBR seals for hydraulic fluid HL.

Applications

The valve is used in control manifolds whose pilot circuit is fed from a separate pump or pressure line and whose pilot return runs to tank on its own path. Such circuits appear in presses, hoists and large hydraulic power units working around 300 l/min. An ISO 4401-07-07-0-05 subplate is a prerequisite for installation. NBR seals and hydraulic fluid HL match standard mineral oil hydraulics.

Manufacturer

The manufacturer is Bosch Rexroth and the material number is R901072176. Curves, switching times and installation dimensions are given in datasheet RE 24751 on pilot-operated directional spool valves and in the overview RE 07600-B.