Bosch Rexroth | 4WRZ16W6-100-7X6EG24K4D3M
4WRZ16W6-100-7X/6EG24K4/D3M
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The 4WRZ16W6-100-7X/6EG24K4/D3M valve is manufactured by Bosch Rexroth as part of the WRZ Proportional Directional Valves series and is intended to steer hydraulic flow proportionally in automated machinery. It uses a 24 V DC supply to energize its pilot stage, with the electrical link provided through a plug that meets DIN EN 175301-803. Nominal size 16 sets the flow cross-section, and a nominal flow of 100 l/min at a 10 bar pressure drop defines baseline capacity. An external pilot supply feeds a size 6 pilot valve that moves 5.5 l/min of oil and displaces 4.6 cm³ across the full control range, ensuring predictable spool positioning during command changes.
The main stage passes up to 460 l/min and tolerates 350 bar on the primary pressure ports, while port T with an external drain is rated for 250 bar and port Y is limited to 30 bar. Mounting follows the ISO 4401-07-06-0-94 pattern, and the assembly weighs 13.4 kg when installed on a subplate. NBR seals are fitted for compatibility with standard hydraulic fluids, and a D3 pressure-reducing cartridge (type ZDR 6 DP0-4X/40YM-W80) stabilizes pilot pressure within the integrated circuitry. These limits and interfaces equip the valve for precise proportional control in high-duty industrial automation circuits.
Technical Specifications
Electrical Connection
Plug DIN EN 175301-803
Max Main Valve Flow
460 l/min
Max Operating Pressure (main)
350 bar
Max Pressure Port T (ext. Drain)
250 bar
Max Pressure Port Y
30 bar
Nominal Flow
100 l/min (Δp 10 bar)
Nominal Size
16
Pilot Oil Flow (0→100%)
5.5 l/min
Pilot Oil Volume (0→100%)
4.6 cm3
Pilot Supply
External
Pilot Valve Size
6
Porting Pattern
ISO 4401-07-06-0-94
Pressure Reducing Valve
D3 (ZDR 6 DP0-4X/40YM-W80)
Seal Material
NBR
Supply Voltage
24 V DC
Weight (subplate Mounting)
13.4 kg
1620 Old Apex Road
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