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The DG5S-8-33C-M-FPA5WL-B5-30 valve is manufactured by Vickers and belongs to the DG5 Two-Stage Directional Valves series. It directs hydraulic flow for automated motion control and mounts on an ISO 4401-08 (NFPA D08) interface, letting it drop into standard subplates. The spool is spring centered so the valve returns to neutral when the solenoid is de-energized. Spool code 33 keeps port P closed while ports A and B taper open to tank, a pattern that unloads the actuator lines during standby. The recommended flow of 170 L/min (45 US gpm) helps keep pressure drop low and temperature stable in typical circuits. An AC coil rated for 110 V at 50 Hz or 120 V at 60 Hz energizes the pilot stage. Wiring enters through a flying-lead coil and terminates in an Instaplug PA5 five-pin connector, while a 1/2 NPT threaded housing accepts conduit for field protection.
The valve tolerates 380 L/min at 210 bar without malfunction, providing reserve capacity for transient demands. Ports P, A, and B can each operate continuously at 210 bar, and the pilot supply may also reach 210 bar without affecting service life. Tank lines withstand the same 210 bar limit, supporting systems where back-pressure develops. Pilot oil is sourced internally but drains externally, a scheme that separates pilot exhaust from the main return to minimize contamination. The integral pilot valve allows tank pressure up to 100 bar according to code 5, ensuring proper shifting even when back-pressure is present. A test port threaded 0.4375-20 UNF-2B provides a location for gauges or sensors to verify pilot conditions.
Coil Type
Flying Lead (F)
Coil Voltage
110V AC 50 Hz/120V AC 60 Hz (B)
Electrical Connection
Instaplug PA5 (5-pin)
Max Flow W/o Malfunction (210 Bar)
380 L/min
Max Operating Pressure
210 bar (Ports P, A, B)
Max Pilot Pressure
210 bar
Max Tank Line Pressure
210 bar
Mounting Interface
ISO 4401-08 (NFPA D08)
Pilot Drain
External
Pilot Pressure Source
Internal
Pilot Valve Tank Pressure Rating
100 bar (Code 5)
Recommended Flow
170 L/min (45 US gpm)
Spool Arrangement
Spring Centered (C)
Spool Code 33
Closed P, Open A&B to T (Tapers)
Test Port Thread
0.4375-20 UNF-2B
Wiring Housing
1/2 NPT Thread (W)
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