4WE6T6X/EG24NK40/Z/62SO43A-1872-A

The 4WE6T6X/EG24NK40/Z/62SO43A-1872-A directional spool valve belongs to the WE Directional Spool Valves series and is produced by Bosch Rexroth for hydraulic automation tasks. The valve follows the ISO 4401-03-02-0-05 porting pattern so it mounts directly onto standardized subplates without adapter blocks. A maximum operating pressure of 350 bar at ports P, A, and B lets the unit control high-pressure actuators, while a permissible flow of 80 l/min (dc) keeps pressure drop within limits for medium-size circuits. Electrical supply is 24 V DC with a ±10 % tolerance, meaning the coil remains within design limits despite minor battery or line variations. At this voltage the solenoid draws 1.25 A and absorbs 30 W, figures used when sizing power supplies and fusing. A K40 Deutsch DT04-2PA two-pin connector forms the electrical interface and gives vibration-resistant coupling on mobile machinery. Continuous duty cycle 100 % ED permits the coil to stay energized indefinitely without overheating, supporting sustained valve actuation.

The clamping length of 22 mm defines how far the tube assembly seats inside the coil and helps maintain correct armature alignment. Positioning on the manifold is guided by a locating hole prepared for an ISO 8752-3 × 8 St spring pin, which prevents rotation during installation. When the manual override is used, the tank line may see up to 50 bar, so operators can vent circuits without exceeding this limit. The T port tolerates 210 bar during dynamic duty cycles, ensuring safe return-line operation even under transient loads. Switch-off overvoltage can reach 500 V; drive electronics must clamp this level to protect contact surfaces and semiconductor outputs. A maximum switching frequency of 4.2 operations per second (dc) defines the fastest repeatable actuation and prevents solenoid overheating. NBR sealing material contains system oil and resists most mineral-based fluids, preserving internal clearances and preventing external leakage.