Bosch Rexroth | 4WE6H62EG-N962-S043A-1735
4WE6H62/EG-N9/62 S043A-1735
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The 4WE6H62/EG-N9/62 S043A-1735 directional spool valve is produced by Bosch Rexroth as part of the WE Directional Spool Valves series and directs hydraulic flow in automated machinery. It is built in valve size 6, so its internal galleries and envelope match standard subplates of that size. The interface follows the ISO 4401-03-02-0-05 porting pattern, allowing direct mounting, while NFPA D03 port labeling supports installations that follow North American notation. A clamping length of 42 mm dictates the subplate thickness needed for reliable sealing. Four M5 × 50 screws to ISO 4762 secure the body and maintain joint integrity under load. With two solenoids installed the assembly weighs 1.95 kg, permitting manual handling during service. The manual override is concealed, reducing accidental actuation and contamination risks, and it may be used against tank pressures up to 50 bar.
The valve handles a continuous flow of 80 l/min for medium-duty actuator circuits. Pressure, A, and B ports withstand 350 bar, while the tank port tolerates 210 bar without damage. The coil surface can reach 120 °C during prolonged energization; windings rated to insulation class F allow this temperature without loss of function. Fluid cleanliness must be at least ISO 4406 20/18/15 to prevent spool sticking and wear. A mean time to dangerous failure of 300 years supports long service intervals in safety-related installations.
Technical Specifications
Clamping Length
42 mm
Cleanliness Class
ISO 4406 20/18/15
Insulation Class (dc)
F
Manual Override
Concealed
Max Coil Surface Temp (std)
120 °C
Max Flow (dc)
80 l/min
Max Operating Pressure (p/a/b)
350 bar
Max Tank Port Pressure (dc)
210 bar
Mounting Screws
M5 x 50 (ISO 4762, 4 pcs)
Mttfd
300 Years
Nfpa Porting
D03
Override Use Limit (tank)
50 bar
Porting Pattern
ISO 4401-03-02-0-05
Valve Size
6
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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