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The DG4V32NWLB20S300 directional valve is manufactured by Vickers for the DG4 Directional Valves series. It directs hydraulic flow in automated circuits and is built for continuous operation with a 100 % duty cycle. The valve employs a spool type 2 closed center configuration to block all ports in the neutral position. It connects to manifolds that follow the ISO 4401-AB-03-4-A port pattern, allowing interchange with standard sub-plates. Working ports p, A, and B tolerate pressures up to 350 bar (5000 psi). Electrical components are sealed to an IP67 protection rating, and accurate seating requires the mounting surface to be flat within 0.013 mm.
Positional accuracy is aided by a 4.00 mm locating pin hole that aligns the body on the sub-plate. Grade 12.9 mounting bolts secure the assembly under full system pressure. Flow can be adjusted through a restrictor orifice up to 2.30 mm without risking instability. The internal restrictor plug mounts on an M5 × 0.8 thread, providing a standardized connection for service tools. Observing these mechanical limits allows the valve to function reliably within compact hydraulic manifolds used in automated machinery.
Duty Cycle
ED 100% (Continuous)
Locating Pin Hole
4.00 mm
Max Pressure (p, A, B)
350 bar (5000 psi)
Max Restrictor Orifice
2.30 mm
Mount Bolt Grade
12.9
Mount Surface Flatness
0.013 mm
Port Pattern
ISO 4401-AB-03-4-A
Protection Rating
IP67
Restrictor Plug Thread
M5 x 0.8
Spool Type
2 (Closed Center)
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