Bosch Rexroth | 4WEH16J7X6EW110N9ETSK4B10
4WEH16J7X/6EW110N9ETSK4/B10
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The 4WEH16J7X/6EW110N9ETSK4/B10 valve is manufactured by Bosch Rexroth as part of the WEH Directional Spool Valves series and directs pressurized fluid for hydraulic automation. Its nominal size of 16 (NG16) sets the passage area for medium-capacity circuits, while the ISO 4401-07-07-0-05 mounting interface matches common subplates for straightforward installation. Pilot oil supply is internal, eliminating external feed lines, and pilot oil return is also internal to route fluid back through the base block. A maximum operating pressure of 280 bar at ports P, A, and B suits high-pressure systems, and a maximum flow of 300 l/min for symbol J supports fast actuator movement. The spool re-centers with a spring, requiring a minimum pilot pressure of 14 bar for reliable shifting.
A maximum pilot pressure of 250 bar protects the pilot stage components, whereas an internal pilot return pressure limit of 160 bar defines allowable back pressure. Cleanliness class 20/18/15 per ISO 4406(c) preserves spool fit and seal life, and a fluid temperature range from –20 °C to +80 °C accommodates typical mineral oils. Electrical connection is via a DIN EN 175301-803 K4 plug for standard wiring, and a concealed manual override permits local operation without exposing moving parts. Switching time adjustment designated Supply Control (S) lets users tune response, supplemented by a 1.0 mm throttle insert coded B10 that moderates pilot flow. The two-solenoid, spring-centered variant weighs 8.9 kg, which influences bracket and manifold support selection.
Technical Specifications
Cleanliness Class
20/18/15 (ISO 4406(c))
Electrical Connection
DIN EN 175301-803 (K4)
Fluid Temperature Range (nbr)
-20 to +80 C
Manual Override
Concealed
Max Flow (symbol J)
300 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pilot Return Pressure (ac, Internal)
160 bar
Min Pilot Pressure (spring-centered)
14 bar
Mounting Interface
ISO 4401-07-07-0-05
Nominal Size
16 (NG16)
Pilot Oil Return
Internal
Pilot Oil Supply
Internal
Switching Time Adjustment
Supply Control (S)
Throttle Insert
Ø 1.0 mm (B10)
Weight (two-solenoid, Spring-centered)
8.9 kg
1620 Old Apex Road
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