Vickers | DG4V38CMUB40S288
DG4V38CMUB40S288
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The DG4V38CMUB40S288 valve is produced by Vickers as part of the DG4 Directional Valves series and directs hydraulic flow in automated machinery. Its tandem center spool with open crossover returns pump flow to tank while blocking actuators in the neutral position, and a spring-centered design forces the spool back to neutral when power is removed. A wet armature solenoid lowers noise and improves service life, and each coil draws 30 W to produce consistent shift force. Continuous energization is allowed by the 100 percent duty cycle rating, and actuation remains dependable down to 90 percent of the nominal supply voltage. Class F encapsulation surrounds the coil, while Class H insulation tolerates higher temperatures produced during long cycles.
An ISO 4400 (DIN 43650) plug provides the electrical interface and seals the enclosure to IP67, preventing fluid ingress during wash-down. Plain manual overrides at each solenoid end permit spool movement without electrical power for setup or service. The body withstands working pressures up to 350 bar (5000 psi) so it can be installed in high-pressure circuits. Mounting follows the ISO 4401-AB-03-4-A, or CETOP 3, pattern for interchangeability, and Grade 12.9 M6 bolts secure the valve; they should be tightened between 5 and 7 N·m (44–62 lbf·in) to maintain a leak-free seal. These characteristics create a compact directional element suited to repetitive motion cycles in industrial hydraulic systems.
Technical Specifications
Coil Connector
ISO 4400 (DIN 43650)
Coil Encapsulation Class
Class F
Coil Insulation Class
Class H
Coil Power
30 W
Duty Cycle
ED 100% (Continuous)
Enclosure Rating
IP67 (ISO 4400 plug)
Manual Overrides
Plain Overrides (Solenoid Ends)
Max Pressure (p,a,b)
350 bar (5000 psi)
Min Supply Voltage
90% of rated
Mounting Bolt Torque
5–7 N·m (44–62 lbf·in)
Mounting Bolts
M6 (Grade 12.9)
Mounting Interface
ISO 4401-AB-03-4-A (CETOP 3)
Solenoid Type
Wet Armature
Spool Type
Tandem Center (Open Crossover)
Spring Arrangement
Spring Centered
1620 Old Apex Road
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