This document describes the features and characteristics of Siemens electric hydraulic valve actuators, including stroke selection, operating voltage, control signal, spring return function, flow characteristic selection, valve position feedback, etc. These actuators are suitable for Siemens two-way and three-way valves, and have high regulating force and forced control function.
The document describes Siemens electric hydraulic valve actuators SKB62 and SKC62, which are used with Siemens two‑way and three‑way valves (VVF and VXF series). It covers application limits, environmental conditions, and compatible valve models.
Key features include spring‑return (SKB62), optional UL‑certified versions, selectable flow characteristics (linear or proportional), LED status display, manual adjustment, and force up to 2800 N. The manual contains wiring diagrams, installation guidelines, stroke verification procedures, and accessory information such as auxiliary switches and heating elements. This manual is written in Chinese.
| Working voltage | AC 24 V |
|---|---|
| Control signal options | DC 0‑10 V, 4‑20 mA, 0‑1000 µA |
| Stroke | 20 mm or 40 mm |
| Adjustment force | up to 2800 N |
| Operating temperature (environment) | -15 °C to +55 °C |
| Valve media temperature | -25 °C to +220 °C |
| Maximum media temperature (special) | up to 350 °C |
The actuator operates on a 24 V AC power supply.
Move the actuator to the 0 % stroke position (LED flashes green), then to the 100 % position (LED flashes green again) and record the values.