The Siemens 4566 electric hydraulic valve actuator series provides 20 mm or 40 mm stroke options for two‑way and three‑way valves (VVF and VXF series). The actuators operate from AC 24 V and accept control signals of DC 0‑10 V, 4‑20 mA or 0‑1000 Ω, with optional spring‑reset or non‑spring‑reset versions.
The manual details wiring, control signal selection, flow‑characteristic options (linear or proportional), LED status indicators, force adjustment up to 2800 N, and optional accessories such as auxiliary switches, valve‑stem heaters and mechanical stroke inverters. It also includes calibration (stroke verification), troubleshooting, and safety/maintenance procedures. This manual is written in Chinese.
| Working voltage | AC 24 V |
|---|---|
| Control signal options | DC 0‑10 V, 4‑20 mA or 0‑1000 Ω |
| Stroke | 20 mm or 40 mm |
| Force adjustment | up to 2800 N |
| Operating temperature (valve media) | ‑25 °C … +220 °C (up to 350 °C with special extension) |
| Environmental temperature range | ‑15 °C … +55 °C |
| UL certification | UL‑listed for SK…62U and SK…62UA |
The actuator accepts DC 0‑10 V, 4‑20 mA or 0‑1000 Ω control signals.