This document describes the features and characteristics of the 4 564 electric hydraulic valve actuator, including stroke, working voltage, control signal, spring reset function, adjusting force, installation, functional enhancement options, application areas, and environmental temperature requirements.
The SKB32, SKC32, SKB82 and SKC82 series are electric‑hydraulic valve actuators designed for Siemens two‑way and three‑way HVAC valves. They offer a stroke of 20 mm or 40 mm, a maximum adjusting force of 2800 N, and optional spring‑reset, manual adjustment, and position‑indication functions. Versions are available for AC 230 V (SKB/SKC 32) and AC 24 V (SKB/SKC 82), with UL‑certified models for the 24 V range.
The manual covers functional description, accessories, ordering, transportation, compatibility with Siemens valve families, technical principles, installation and wiring guidelines, commissioning steps, maintenance procedures, warranty information, detailed technical data, and compliance with IEC 721‑3‑3, CE and UL standards. It also provides dimension tables and environmental ratings for safe integration into HVAC systems. This manual is written in Chinese.
| Working voltage (SKB32) | AC 230 V |
|---|---|
| Working voltage (SKB82) | AC 24 V |
| Control signal | 3‑position |
| Stroke | 20 mm or 40 mm |
| Adjusting force | 2800 N |
| Power consumption (SKB32.50) | 10 VA |
| Minimum line current (SKB32) | 0.5 A |
| Maximum line current (SKB32) | 6 A |
| Operating temperature range | -15 °C to +55 °C |
| IEC compliance | IEC 721‑3‑3 |
The SKB32 actuator operates on AC 230 V.
The adjusting force can reach up to 2800 N.
They are rated for ambient temperatures from –15 °C to +55 °C.