Bosch Rexroth | 4WRZ16W6-150-7X6EG24N9TK4M
4WRZ16W6-150-7X/6EG24N9TK4/M
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The 4WRZ16W6-150-7X/6EG24N9TK4/M proportional directional valve belongs to the WRZ Proportional Directional Valves series and is manufactured by Bosch Rexroth for closed-loop hydraulic automation. It relies on a 24 V DC solenoid coil to modulate spool position and manage flow paths. The cold coil resistance measures 4.8 Ω at 20 °C, enabling predictable current draw during start-up. Under normal operation the coil may be energized up to 1.5 A without exceeding design limits. A concealed manual override allows manual actuation during commissioning or power loss. The electrical interface conforms to DIN EN 175301-803, simplifying cable assembly in industrial cabinets. Enclosure integrity is rated IP65 and the maximum coil temperature is 150 °C, permitting installation in demanding environments where water jets and elevated temperatures are present.
The valve body follows porting pattern ISO 4401-07-06-0-94 and weighs 13.4 kg, providing a standardized footprint for subplate mounting. Hydraulic ratings include a maximum operating pressure of 350 bar and a maximum main valve flow of 460 l/min, enabling high-capacity circuits. The pilot stage supplies fluid externally while returning pilot drain internally, a configuration that simplifies line routing. Nominal flow reaches 150 l/min at a 10 bar differential across the main stage, establishing predictable throttling behavior. The pilot valve is size 6, ensuring compatibility with common NG6 pilot components. NBR seals are used to contain the hydraulic media and maintain leakage control. Combined, these attributes qualify the unit for precise directional and flow control in industrial hydraulic systems.
Technical Specifications
Coil Resistance (cold, 20 °c)
4.8 Ω
Coil Voltage
24 V DC
Electrical Connection
DIN EN 175301-803
Manual Override
Concealed
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Main Valve Flow
460 l/min
Max Operating Pressure
350 bar
Nominal Flow (10 Bar Δp)
150 l/min
Pilot Drain
Internal
Pilot Supply
External
Pilot Valve Size
6
Porting Pattern
ISO 4401-07-06-0-94
Seal Material
NBR
Type Of Protection
IP65
Weight
13.4 kg
1620 Old Apex Road
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