This document describes the features and characteristics of Vickers® directional control valves, including flow control, pilot pressure relief valve, hydraulic damping, and main stage stroke adjustment. The valve is suitable for applications with high flow rates and high pressures, and it has advantages such as mini-system capability, reliable operation, and high reliability.
This manual covers the DG3V-8 and DG5V-8 remote hydraulic directional control valves, describing their model coding, performance characteristics, valve‑core configurations, pressure‑drop curves and response times. Detailed installation dimensions, optional components, electrical data and mounting surface requirements are included.
Additional sections provide application data, oil cleanliness recommendations, special seal options, and part‑number references for ordering and service. The document is intended for engineers and technicians who install, commission, or maintain these valves in industrial hydraulic systems.
| Maximum flow rate | 700 l/min (185 USgpm) |
|---|---|
| Maximum pressure rating | 350 bar (5000 psi) |
| Operating temperature range | -18 °C to 66 °C (0 °F to 150 °F) |
| Viscosity range | 75 to 600 cSt (15 to 128 Ssu) |
The DG3V-8 valve is rated for a maximum flow of 700 l/min (185 USgpm).
Both the DG3V-8 and DG5V-8 valves are rated for a maximum pressure of 350 bar (5000 psi).
Response time is the interval from the pilot pressure rise/fall to the resulting change in inlet pressure.