Bosch Rexroth | 4WEH16J7X6EW110N9TS2K4B08
4WEH16J7X/6EW110N9TS2K4/B08
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The 4WEH16J7X/6EW110N9TS2K4/B08 valve is produced by Bosch Rexroth as part of the WEH Directional Spool Valves series. It uses electro-hydraulic actuation to shift the internal spool in hydraulic automation circuits. The nominal size is NG16, matching common manifold passages for medium flow rates. A porting pattern compliant with ISO 4401 enables interchangeability with standard subplates, and subplate mounting simplifies replacement without disturbing rigid pipework. The spool is coded J and arranged in three spring-centered positions to direct flow according to circuit demand. This unit sustains line pressures up to 280 bar at ports P, A, and B and accepts a maximum flow of 300 l/min for high-duty cycles. Electrical connection is through the DIN EN 175301-803 K4 interface, and a concealed N9 manual override permits local actuation during commissioning.
A pilot return path designated Y is handled internally and is rated for 160 bar when powered by AC solenoids, reducing external plumbing in compact manifolds. Switching time can be tuned with the discharge control feature labeled S2, allowing users to balance response speed and stability. A 0.8 mm throttle insert identified as B08 is supplied to limit pilot oil flow where needed. System fluid cleanliness must not exceed ISO 4406 20/18/15 to maintain spool reliability. External surfaces carry a protective coating up to 100 µm thick to resist corrosion in industrial environments. Installers should note the weight of 8.9 kg when planning handling equipment. These combined parameters define a precise directional control element suitable for consistent operation in integrated hydraulic platforms.
Technical Specifications
Actuation
Electro-Hydraulic
Cleanliness Class
ISO 4406 20/18/15
Electrical Connection
DIN EN 175301-803 (K4)
Manual Override
Concealed (N9)
Max Flow
300 l/min
Max Pressure (p, A, B)
280 bar
Mounting
Subplate
Nominal Size
NG16
Pilot Return Y (internal)
160 bar (AC)
Porting Pattern
ISO 4401
Spool Positions
3 (Spring-Centered)
Spool Symbol
J
Surface Coating Thickness
100 µm max
Switching Time Adj.
Discharge Control (S2)
Throttle Insert
0.8 mm (B08)
Weight
8.9 kg
1620 Old Apex Road
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