This document describes the features and characteristics of the KBD/TG4V-3, 1* series proportional directional control valve without feedback. The design and testing of this product have met the requirements of the European Electromagnetic Compatibility Directive (EMC) 89/336/EEC. The proportional valve features advanced digital electrical technology, adjustable ramp signal, wide power supply voltage range, and other characteristics.
The manual describes the Vickers KBD/TG4V-3 series proportional directional valve that provides oil flow proportional to an electrical command signal. Two actuator versions are offered – a dual‑solenoid type for reversible flow and a single‑solenoid type for unidirectional flow. The valve includes an internal control amplifier and complies with EMC standards and IP67 protection.
The document contains a detailed overview, typical cross‑section drawings, model coding, valve‑core data, functional symbols, working data, power‑capacity curves, flow characteristics, frequency response, installation dimensions, electrical data, block diagrams, wiring configurations and application data. It also provides guidance on grounding, cable selection and recommended bolt kits for proper installation. This manual is written in Chinese.
| Maximum pressure rating | 350 bar (5000 psi) |
|---|---|
| Environmental protection rating | IP67 |
| Electrical input options | +/-10 V or 4‑20 mA |
| Supported supply voltages | 12 V and 24 V |
The valve is rated for a maximum pressure of 350 bar (5000 psi).
Both +/-10 V voltage signals and 4‑20 mA current signals are supported.
Connect the external shielding to the 7‑pin plug shell and ensure the valve body is firmly grounded.