Product Overview
The Siemens SAS81.00 is a precision-engineered electromotoric valve actuator designed for the accurate positioning of control valves and dampers in industrial HVAC and process automation systems. As a core component within Siemens’ extensive building automation and drive technology portfolio, this actuator converts electrical control signals into precise mechanical stroke movements, enabling reliable modulation of fluid and gas flow. The SAS81.00 operates on a synchronous motor principle with electronic positioning control, providing stable and repeatable actuation for 2-port and 3-port control valves. Its compact, robust housing and standardized interface make it an ideal choice for integration into demanding industrial environments where precise valve authority and dependable long-term operation are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electromotoric Valve Actuator (Motor & Drive) |
| Model Designation | SAS81.00 |
| Operating Voltage | AC 24 V (standard industrial control voltage) |
| Control Signal | Modulating / 3-position floating control |
| Actuating Force | Up to 400 N (standard industrial grade) |
| Stroke Range | 20 mm (standard valve stroke) |
| Mounting & Connection | Standard ISO / Siemens valve interface with coupling nut |
| Position Feedback | Electronic positioning with optional auxiliary switch |
| Enclosure Protection | IP54 (dust and splash water protection) |
| Ambient Temperature Range | -5 °C to +55 °C (operation) |
Engineering Features & Advantages
- Precision Performance: Synchronous motor with electronic control ensures accurate and repeatable valve positioning, maintaining stable flow characteristics and minimizing hysteresis in modulating applications.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with robust gearing and thermal overload protection for long service life.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens OEM standards, allowing drop-in replacement without modification to valve bodies or piping.
- Flexible Control Integration: Compatible with standard 0–10 V or 4–20 mA control signals, enabling seamless integration into DDC, PLC, and building automation systems.
- Low Maintenance Design: Maintenance-free gear train and sealed housing reduce downtime and total cost of ownership in critical process loops.
Typical Industrial Applications
PRODUCT IMAGES
SIEMENS SAS81.00 Electromotoric Valve Actuator
âš¡ Emergency Plant Maintenance & Ready-to-Ship Notice:
- Authentic & Fully Tested: 100% bench tested for hydraulic response, pressure rating, and null-bias stability before dispatch.
- Fast Dispatch: In-stock units ready for same-day dispatch via DHL / FedEx Express directly to your plant.
- Pre-Shipment Verification: High-definition photos, video testing runs, and serial number verification provided prior to shipment.
- Peace of Mind: Covered by our 12-Month Replacement Warranty.
Shop the genuine SIEMENS SAS81.00 Electric Actuator. This Germany-made 24V AC/DC automation component features a compact, robust design, delivering precise, reliable valve control for heavy-duty industrial HVAC and process systems.