This document introduces the electric hydraulic valve actuator from Siemens Building Technologies HVAC Products, including different models and features. These actuators are suitable for Siemens' two-way and three-way valves and have different operating voltages and control signals. They have features such as spring return, valve position feedback, stroke verification, etc., and can be enhanced with additional auxiliary switches, valve stem heating elements, and mechanical stroke inverters.
This manual describes the Siemens 4566 series electric hydraulic valve actuators, covering both 20 mm and 40 mm stroke versions (SKB62/ SKC62 and SKB60/ SKC60). It details the applicable valve families (VVF and VXF series), environmental limits, and optional accessories such as auxiliary switches, rod heaters, and mechanical stroke inverters.
The document includes wiring diagrams, control signal options, force adjustment, LED status indicators, calibration (stroke verification) procedures, and maintenance guidelines. UL‑certified versions and enhanced‑function models (UA) are also explained. This manual is written in Chinese.
| Power supply voltage | AC 24 V |
|---|---|
| Control signal options | DC 0‑10 V, 4‑20 mA or 0‑1000 Ω |
| Stroke | 20 mm or 40 mm |
| Adjusting force | 2800 N |
| Operating temperature range | −15 °C to +55 °C |
| Valve media temperature range | −25 °C to +220 °C |
| UL certification | Yes (UL‑certified versions) |
| Weight (with packaging) | 8.60 kg |
The actuator can be controlled with DC 0‑10 V, 4‑20 mA, or 0‑1000 Ω signals.
The actuator can deliver up to 2800 N of adjusting force.