Bosch Rexroth | 4WRZ25E220-7X6EG24N9ETK4D3V
4WRZ25E220-7X/6EG24N9ETK4/D3V
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The 4WRZ25E220-7X/6EG24N9ETK4/D3V proportional directional valve belongs to the WRZ Proportional Directional Valves series from Bosch Rexroth. It meters hydraulic flow and direction in automated circuits by varying solenoid current. The unit operates on a 24 V DC supply and draws up to 1.5 A, with a cold coil resistance of 4.8 Ω that sets initial current limits. A DIN EN 175301-803 plug coded K4 provides the electrical connection and locks under an IP65 rating when secured, protecting the solenoid against dust and water jets. The coil can reach 150 °C without degradation, allowing use near hot manifolds. FKM seals retain compatibility with common hydraulic fluids and elevated temperatures. These features give the valve stable electrical performance and environmental protection when installed on machinery that demands precise, repeatable actuation.
Hydraulic capacity is defined by a nominal flow of 220 l/min at a 10 bar pressure drop, while the main ports withstand operating pressures up to 350 bar; the T port is limited to 30 bar to safeguard the tank line. Pilot control oil is delivered and returned internally, with a flow of 7 l/min across the full command range, so no external lines are needed. Port P measures 24 mm and the A, B, and T ports each measure 25 mm, matching the ISO 4401-08-07-0-94 mounting pattern for size 25 subplates. The assembly weighs 18.2 kg, which should be supported by the manifold or machine frame during service. Together these hydraulic and dimensional values define installation constraints and ensure the valve can modulate large flows accurately within compact hydraulic power units.
Technical Specifications
Coil Resistance (cold 20 °c)
4.8 Ω
Degree Of Protection
IP65 (Plug Locked)
Electrical Connection
DIN EN 175301-803 Plug (K4)
Max Coil Temperature
150 °C
Max Current
1.5 A
Max Operating Pressure (main)
350 bar
Max Port T Pressure (et)
30 bar
Nominal Flow (Δp 10 Bar)
220 l/min
Pilot Oil Flow (x,y, Step 0–100%)
7 l/min
Pilot Supply And Drain
Internal Supply, Internal Drain
Port P Diameter
24 mm
Porting Pattern
ISO 4401-08-07-0-94
Ports A/b/t Diameter
25 mm
Seals
FKM
Supply Voltage
24 V DC
Weight (subplate, Size 25)
18.2 kg
1620 Old Apex Road
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