Product Overview
The Siemens SSB81 Electromotoric Valve Actuator is a precision-engineered electric actuator designed for the reliable operation of control and regulating valves in industrial heating, ventilation, and hydronic systems. As part of Siemens’ proven SSB series, this actuator delivers consistent linear or rotary stroke positioning through a synchronous motor drive mechanism, ensuring accurate valve modulation in response to control signals. The SSB81 is engineered for direct mounting onto Siemens valve bodies and compatible third-party valves, providing dependable actuation for two-port and three-port control valves. Its robust construction and thermal overload protection make it a trusted component in building automation, district heating, and industrial process control loops where precise valve positioning and long service life are critical.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electromotoric Valve Actuator (Motors, Sensors & Automation) |
| Model Designation | SSB81 |
| Operating Voltage | AC 24 V (standard industrial control voltage) |
| Control Signal | 3-position / floating control (standard Siemens SSB series) |
| Actuator Stroke | Linear stroke, 5.5 mm nominal (valve-dependent) |
| Operating Pressure | Standard Industrial Grade (up to rated valve differential pressure) |
| Mounting & Connection | Standard ISO / Siemens valve interface, direct-coupled mounting |
| Protection Class | IP54 (standard industrial enclosure) |
| Ambient Temperature Range | -5 °C to +55 °C (typical operating range) |
Engineering Features & Advantages
- Precision Performance: Synchronous motor drive delivers accurate, repeatable valve positioning for precise flow and temperature control in hydronic circuits.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with integrated thermal overload protection to prevent motor damage.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens OEM standards, ensuring drop-in replacement without adapter modifications.
- Low Maintenance Design: Sealed actuator housing and robust gear train minimize wear and extend service intervals in demanding building automation environments.
- Flexible Control Integration: Compatible with standard 3-position floating control signals for seamless integration into existing BMS and DDC control systems.
Typical Industrial Applications
The Siemens SSB81 Electromotoric Valve Actuator is widely deployed in hydronic heating and cooling systems, district heating substations, and building automation networks. It is commonly used in air handling units for precise temperature regulation, in industrial process control loops requiring reliable valve modulation
PRODUCT IMAGES
SIEMENS SSB81 Electromotoric Valve Actuator
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