Electric hydraulic valve actuators SKD32...SKD82...SKD62...SKD60
20mm Journey
• SKD32...: Operating voltage is AC 230V, three-position control signal
• SKD82...: Operating voltage AC 24V, three-position control signal
• SKD6…: Operating voltage is AC 24V, DC 0-10V, 4-20mA, or 0-1000Ω valve signal
• SKD6...: Selectable flow characteristics, valve position feedback, stroke adjustment, LED status indication, priority control
• SKD62UA: Features include selective action direction, stroke limit control, adjustable starting point and stroke range sequence control, and additional freeze protection monitoring signals such as QAF21... and QAF61...
• Drive force up to 1000 N
• With or without spring return function
• Directly mounted on the valve, no adjustment required
• Manual adjustment and position indicator features
• Functionality can be enhanced with additional auxiliary switches, potentiometers, valve stem heaters, and stroke inverters.
• SKD...U UL Certified
Application
For Siemens two-way and three-way valves of the VVF... series, VVG… series, VXF… series, and VXG... series, with a drive stroke of 20 mm, suitable for use in HVAC systems as control valves or safety shut-off valves.
Engineering Precautions
The actuator's electrical connections must comply with local electrical installation regulations and internal wiring diagrams. To ensure personal and property safety, it is mandatory to adhere to the relevant safety regulations and restrictions! An ASZ6.5 rod heater must be used when the medium temperature is below 0°C to prevent valve freezing. For safety reasons, the rod heater is designed for AC 24V/30W.
The actuator bracket and valve rod cannot be separated to ensure air circulation. Do not touch hot components without protective measures to avoid burns.
Failure to comply with the above suggestions may result in accidents or fires.
Recommendation: Strongly recommend isolating the valve when the temperature exceeds 140 °C.
