R900921780 Bosch Rexroth 4WE10V3X/CG24N9K4 - Directional spool valves
The Bosch Rexroth 4WE10V3X/CG24N9K4 (Part Number: R900921780) is a direct-operated, double-solenoid directional spool valve engineered to control fluid direction, start, and stop in heavy-duty industrial hydraulic circuits.Designed for ISO 4401-05 (Cetop 5 / NFPA D05) subplate mounting, this 4-way, 3-position valve utilizes a "V" spool symbol configuration. In the central neutral position, ports A, B, and T are interconnected with progressive throttling to the tank while pump port P remains isolated, providing controlled pressure transition and cushioning across work ports. It features dual high-power wet-pin 24V DC solenoids with detachable coils, allowing easy maintenance and coil orientation without exposing or draining the hydraulic fluid.
Specification | Parameter / Value |
|---|---|
Manufacturer | Bosch Rexroth |
Material Part Number (MNR) | R900921780 |
Model Code | 4WE10V3X/CG24N9K4 |
Valve Type | Direct-Acting Double Solenoid Directional Spool Valve |
Nominal Size (NG) | Size 10 / Cetop 5 (ISO 4401-05-04-0-05 / NFPA D05) |
Number of Ports / Positions | 4-Way / 3-Position (4/3) |
Spool Symbol | V (Center Position: A and B connected to T with progressive throttling; P blocked) |
Component Series | 3X (Series 30 to 39) |
Operating Voltage | 24 V DC (G24) |
Max Operating Pressure | Ports P, A, B: 315 bar (4569 PSI) / Port T: 210 bar |
Max Flow Rate | Up to 120 L/min (31.7 GPM) |
Solenoid Type | High-power wet-pin DC solenoids (oil-immersed) |
Manual Override | Protected / Concealed Manual Override (N9) |
Electrical Connection | Individual connector plug-in per DIN EN 175301-803 (Form A / K4 without mating plug) |
Sealing Material | NBR Seals (Buna-N Nitrile Rubber) |
Weight | Approx. 3.6 kg (7.9 lbs) |

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- Started from: Jul 10, 2025



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