Bosch Rexroth | 4WE6G73-6XEG12N9K4A1262
4WE6G73-6X/EG12N9K4/A12/62
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The 4WE6G73-6X/EG12N9K4/A12/62 directional spool valve is produced by Bosch Rexroth within the WE Directional Spool Valves series. It directs hydraulic flow between actuators and the reservoir for automated machine functions. The design provides four ports, allowing connection of pressure, return, and two service lines in a standard D03 interface. Mounting follows NFPA size D03, so it fits common subplates in industrial manifolds. An ISO 4401-03-02-0-05 porting pattern aligns the internal passages with those subplates to prevent blockage. Electrical actuation is handled through a DIN EN 175301-803 K4 connector, which permits quick plug-in wiring on machines. The solenoids operate from a nominal 12 V DC supply and draw 2.5 A, enabling direct drive from low-voltage controllers. The valve withstands a maximum operating pressure of 350 bar in ports P, A, and B and passes up to 80 l/min of flow, supporting medium-duty circuits.
The enclosure carries an IP65 protection class, letting the unit resist dust ingress and water jets in wash-down areas. A concealed manual override designated N9 lets technicians shift the spool during commissioning or fault recovery without exposing moving parts. A locating hole specified as ISO 8752-3x8-St aids precise positioning on the manifold block. The coil surface may reach 120 °C during continuous duty, so surrounding components must tolerate elevated temperatures. Return flow in port T is limited to 210 bar in direct-current service, which protects tank lines from overpressure. The valve requires hydraulic fluid cleanliness of ISO 4406 class 20/18/15 to maintain spool clearance and prevent sticking. With two solenoids installed, the assembly weighs 1.95 kg, making it manageable for single-person installation.
Technical Specifications
Electrical Connector
DIN EN 175301-803 (K4)
Fluid Cleanliness
ISO 4406 (c) 20/18/15
Locating Hole
ISO 8752-3x8-St
Manual Override
Concealed (N9)
Max Coil Surface Temp
120 C
Max Flow (dc)
80 l/min
Max Operating Pressure (p,a,b)
350 bar
Max Tank Port Pressure (t)
210 bar (DC)
Nfpa Mounting Size
D03
Nominal Voltage
12 V DC
Porting Pattern
ISO 4401-03-02-0-05
Ports
4
Protection Class
IP65
Rated Current (12 V Dc)
2.5 A
Weight (two Solenoids)
1.95 kg
1620 Old Apex Road
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