Bosch Rexroth | 4WEH16G7X6EW110N9TDA
4WEH16G7X/6EW110N9TDA
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The 4WEH16G7X/6EW110N9TDA belongs to the WEH Directional Spool Valves series from Bosch Rexroth and is intended to route hydraulic flow in automated machinery. It uses electro-hydraulic actuation so an electric pilot signal shifts the 4/3-way spool without direct manual force. The nominal size NG16 matches the ISO 4401-07-07-0-05 porting pattern, allowing the valve to bolt to standardized manifolds. A maximum flow rate of 240 l/min at spool G and 210 bar supports medium-to-high volume circuits, while ports P, A, and B tolerate operating pressures up to 280 bar. Port T is limited to 250 bar, protecting the tank return line. These ratings let the valve manage power transmission in presses, plastics machines, and similar equipment.
The spring-centered version requires at least 14 bar pilot pressure to shift the spool and may be supplied with as much as 250 bar without damage; its pilot chamber volume is 5.72 cm³, which affects response time in fast-cycling applications. A horizontal mounting position is recommended to keep internal drainage paths clear, and hydraulic fluid must be filtered to ISO 4406 cleanliness class 20/18/15 to prevent wear. The body carries a protective surface coating up to 100 µm thick for corrosion resistance. Installation uses four M10 × 60 screws tightened to 58 Nm, ensuring the valve seals correctly against the manifold face.
Technical Specifications
Actuation Type
Electro-Hydraulic
Fluid Cleanliness
20/18/15 (ISO 4406)
Installation Position
Horizontal Recommended
Max Flow (spool G, 210 Bar)
240 l/min
Max Operating Pressure (p, A, B)
280 bar
Max Pilot Pressure
250 bar
Max Pressure Port T
250 bar
Min Pilot Pressure (spring-centered)
14 bar
Mounting Screw Quantity
4
Mounting Screw Size
M10 x 60
Nominal Size
16 (NG16)
Pilot Volume (3-pos Spring-centered)
5.72 cm³
Porting Pattern
ISO 4401-07-07-0-05
Surface Coating Thickness
100 µm (max)
Tightening Torque (m10 Screws)
58 Nm
Valve Configuration
4/3-Way
1620 Old Apex Road
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