Product Overview
The Siemens SQV91P40 (also referenced as S55150-A131) is a high-performance electromotoric valve actuator engineered for precise control of industrial and HVAC hydronic valves. Operating on a synchronous motor-driven gear train, this actuator delivers reliable linear stroke positioning for globe valves and other modulating control valves used in building automation and process systems. As part of Siemens’ proven SQV series, the SQV91P40 provides consistent force output, stable positioning, and long service life, making it an essential component in district heating, chilled water, and industrial fluid control loops.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Electromotoric Valve Actuator (Motor & Drive) |
| Model Designation | SQV91P40 / S55150-A131 |
| Operating Voltage | AC 230 V (standard industrial supply) |
| Actuating Force | Up to 400 N (linear stroke) |
| Stroke Range | 20 mm nominal positioning stroke |
| Running Time | Approx. 120 s for full stroke (motor-dependent) |
| Control Signal | 3-position or modulating (depending on configuration) |
| Mounting & Connection | Standard Siemens valve interface / ISO compatible coupling |
| Protection Class | IP54 (dust and splash water protected) |
| Ambient Temperature | -5 °C to +55 °C (operation) |
Engineering Features & Advantages
- Precision Performance: Synchronous motor with robust gear train ensures accurate and repeatable valve positioning for demanding modulating control tasks.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with thermal overload protection and maintenance-free gear lubrication.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original Siemens SQV series actuators and corresponding valve bodies, ensuring drop-in replacement without modification.
- Manual Override: Integrated manual adjustment feature allows safe positioning during commissioning or power failure.
- Position Feedback: Optional auxiliary switch or potentiometer for remote position indication and system integration.
Typical Industrial Applications
The Siemens SQV91P40 / S55150-A131 electromotoric valve actuator is widely deployed in district heating and cooling networks, building automation systems (HVAC), industrial process control loops, and energy management systems
PRODUCT IMAGES
SIEMENS SQV91P40 / S55150-A131 Electromotoric Valve Actuator
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Shop the genuine SIEMENS SQV91P40 / S55150-A131 Electric Actuated Control Valve. This Germany-made 24V hydraulic component features a motorized globe design, delivering leak-free, reliable fluid control for heavy-duty industrial systems.