Bosch Rexroth | 4WEH10G4X6EW110N9K4
4WEH10G4X/6EW110N9K4
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The 4WEH10G4X/6EW110N9K4 directional spool valve belongs to the WEH Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation systems where flow paths must be shifted electrically. It is an electro-hydraulic unit that carries out a 4-way function to connect or block four hydraulic lines as commanded. The valve uses a G spool and is built in NG10 size so it matches manifolds that follow the ISO 4401 porting pattern. A spring-centered return brings the spool back to neutral when power is removed, while a concealed manual override coded N9 permits local actuation during setup or fault recovery. Electrical connection is handled through a DIN EN 175301-803 plug, and the main ports withstand operating pressures up to 280 bar.
When shifted, the valve passes up to 130 l/min at 280 bar, provided the pilot stage receives between 12 bar and 250 bar of control pressure. Permissible ambient temperature reaches 50 °C, and hydraulic fluid may be as hot as 80 °C without derating performance. System cleanliness should not exceed ISO 4406 class 20/18/15 to protect internal lands and seals from abrasion. The design offers a mean time to dangerous failure of 100 years, supporting long service intervals in industrial presses or machine tools. These limits combine to ensure stable response and low leakage in installations that rely on precise electro-hydraulic control.
Technical Specifications
Actuation Type
Electro-Hydraulic
Ambient Temperature Max (nbr)
+50 C
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
DIN EN 175301-803
Fluid Temperature Max (nbr)
+80 C
Manual Override
Concealed (N9)
Max Flow (g Spool At 280 Bar)
130 l/min
Max Operating Pressure (p,a,b)
280 bar
Max Pilot Pressure
250 bar
Min Pilot Pressure
12 bar
Mttfd
100 Years
Porting Pattern
ISO 4401
Size
NG10
Spool Return (main Valve)
Spring-Centered
Spool Symbol
G
Valve Function
4-Way
1620 Old Apex Road
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