SIEMENS西门子 SKD32.51 Electric Actuator

Electro-hydraulic valve actuators SKD32...SKD82...SKD62...SKD60
Travel 20 mm
• SKD32...: Operating voltage is AC 230 V, three-position control signal
• SKD82...: Operating voltage is 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 sequential control with selectable action direction, stroke limit control, adjustable starting point and stroke range, along with additional freeze protection monitoring signals QAF21... and QAF61... etc.
• 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 available
• Functionality can be enhanced with additional auxiliary switches, potentiometers, valve stem heaters, and stroke inverters.
• SKD...U UL Certified
Usage
For Siemens two-way and three-way valves in series VVF..., VVG…, VXF… and VXG..., with a drive stroke of 20 mm, used 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 stem heater must be used when the medium temperature is below 0°C to prevent valve freezing. For safety reasons, the stem heater is designed for AC 24V/30W.
Actuator brackets and valve rods cannot be separated to ensure air flow. Do not touch hot components without protection to avoid burns.
Failure to comply with the above recommendations may result in accidents or fires.
Recommendation: Strongly recommend isolating the valve when the temperature exceeds 140 °C.