Bosch Rexroth | 4WEH22Y7X6EW110N9ETDA10B10
4WEH22Y7X/6EW110N9ETDA/10B10
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The 4WEH22Y7X/6EW110N9ETDA/10B10 directional spool valve belongs to the WEH Directional Spool Valves series produced by Bosch Rexroth. It serves electro-hydraulic automation by routing flow in NG25 (W.H 22) circuits under remote electrical control. A high-power 4WE6E pilot valve performs the command stage, and internal supply and return of pilot oil follow the ET configuration. The manifold interface conforms to ISO 4401-08-08-0-05 for direct mounting. Flow paths are defined by a Y-symbol spool, and a 1.0 mm B10 throttle insert limits pilot oil to stabilize switching events.
The main ports handle operating pressures up to 280 bar, while the pilot section allows up to 210 bar for reliable actuation. Port Y withstands 160 bar when energized with AC power, and at least 11 bar of pilot pressure is needed to move the two-position spool. Acceptable hydraulic fluids may reach 500 mm²/s viscosity and 80 °C temperature with NBR seals, provided the ambient environment stays below 50 °C. Fluid cleanliness must achieve ISO 4406 class 20/18/15 to avoid wear and maintain consistent performance.
Technical Specifications
Cleanliness Class
20/18/15 (ISO 4406)
Max Ambient Temperature
+50 C
Max Fluid Viscosity
500 mm2/s
Max Hydraulic Fluid Temperature (nbr)
+80 C
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
210 bar
Max Pressure Port Y (internal)
160 bar (AC)
Minimum Pilot Pressure (2-position)
11 bar
Mounting Interface
ISO 4401-08-08-0-05
Pilot Oil Setup
Internal Supply And Return (ET)
Pilot Valve Type
4WE6E (High-Power)
Spool Symbol
Y
Throttle Insert
1.0 mm (B10)
Type Of Actuation
Electro-Hydraulic
Valve Size
NG25 (W.H 22)
1620 Old Apex Road
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