Rexroth 4WEH22J7X/6EW110N9K4 Electro-hydraulic Directional Spool Valve Spare Part

Technical Specifications

Model:4WEH22J7X/6EW110N9K4

Brand:Rexroth

Product type:Pilot operated 4/3 electro-hydraulic directional spool valve

Nominal size:NG25(ISO4401-08)

Spool symbol:J

Coil voltage:110VAC

Max operating pressure:350 bar

Max flow rate:450 L/min

Mounting:Subplate mounting

Seal material:NBR

Hydraulic fluid:HL,HLP,HLPD,HVLP,HFC

Weight:12.5kg

Operating temperature:0~45℃

Storage temperature:-20~70℃

Relative humidity:5~95% non-condensing

Protection class:IP65

Certification:CE

System compatibility

4WEH22J7X/6EW110N9K4 belongs to Rexroth WEH series electro-hydraulic directional valve family,widely used in heavy-duty hydraulic systems for metallurgy,plastic injection molding,machine tools and press equipment.This is a legacy spare part for hydraulic equipment maintenance replacement.

Function

4WEH22J7X/6EW110N9K4 is two-stage pilot operated electro-hydraulic directional valve.It consists of a pilot solenoid valve and main spool valve.The pilot valve controls pilot oil to drive main spool,switching hydraulic oil flow direction in high flow hydraulic system.It adopts J spool function,neutral position: P closed,A,B and T connected together.It controls start,stop and forward/reverse movement of large hydraulic cylinders and hydraulic motors.

Installation

Mount 4WEH22J7X/6EW110N9K4 on standard ISO4401 subplate,tighten fixing bolts.Connect 110VAC solenoid coil cable and hydraulic pipeline according to hydraulic schematic.Clean pipeline thoroughly before commissioning,check oil cleanliness,pilot pressure and connection tightness.

Interface

‑Hydraulic port:P,A,B,T

‑3-pole solenoid electrical connector(EN175301-803)

‑Manual override button on pilot valve

Circuit feature

Two-stage pilot control design,stable commutation under high flow condition,shock absorbing structure,strong anti-vibration,adapt to heavy load industrial workshop environment.

Feature

4WEH22J7X/6EW110N9K4 is Rexroth hydraulic spare part.Typical faults:pilot coil burnout,main spool stuck,internal leakage,seal aging and oil leakage.Inspect coil resistance,spool movement and sealing surface before replacement.This hydraulic valve must match working pressure,flow rate,spool function and coil voltage of original system,direct substitution without inspection is not recommended.

Diagnostic

When coil damaged,pilot pressure insufficient,spool jam or seal failure occurs,the hydraulic actuator cannot reverse or stop normally,pressure loss and oil leakage will appear.

Built‑in function:Large flow hydraulic oil flow direction control,heavy-duty cylinder forward/reverse movement control,actuator stop holding,used as Rexroth hydraulic system spare replacement.

Product Brief

4WEH22J7X/6EW110N9K4 is Rexroth NG25 J spool 4/3-way electro-hydraulic directional valve with 110VAC pilot coil,suitable for high flow heavy-duty hydraulic circuit.Verify working pressure,flow requirement,spool symbol and coil voltage before ordering.ESD protection required during handling and installation.