Description
Siemens SKP75.011U1 Air/Gas Ratio Actuator Overview
The Siemens SKP75.011U1 is a 120V electro-hydraulic actuator engineered for precise air/gas ratio control in commercial and industrial combustion burner systems. Designed to work in conjunction with compatible Siemens SKP-series gas valves, this actuator delivers reliable, responsive fuel modulation to help maintain optimal combustion efficiency across a wide range of firing conditions.
Key Features
- 120V operating voltage for compatibility with standard commercial burner control circuits
- Integrated air/gas ratio control for accurate fuel-to-air mixture management
- Proof of Closure (POC) switch provides a safety interlock signal confirming valve closure before burner ignition
- Electro-hydraulic actuator design ensures smooth, proportional valve positioning
- Built for demanding commercial and industrial combustion applications
- Engineered and manufactured by Siemens, a globally trusted name in combustion and building controls
Air/Gas Ratio Control
The SKP75.011U1 uses a pneumatic/hydraulic sensing mechanism to automatically adjust the gas valve position in response to changes in combustion air pressure. This air/gas ratio control capability helps maintain a consistent fuel mixture, improving combustion efficiency, reducing emissions, and protecting equipment from the effects of fuel-rich or fuel-lean conditions.
Proof of Closure (POC) Switch
The integrated POC switch is a critical safety feature that provides a verified signal to the burner control system confirming the gas valve is fully closed. This interlock prevents burner ignition attempts unless a safe valve-closed condition is confirmed, supporting compliance with safety standards for commercial combustion equipment.
Applications
- Commercial and industrial gas burners
- Modulating boiler and heating systems
- Process heating equipment
- Systems requiring air/gas ratio regulation and safety interlocking
Product Specifications
- SKU: SKP75.011U1
- Brand: Siemens
- Operating Voltage: 120V
- Control Type: Air/Gas Ratio
- Safety Feature: Proof of Closure (POC) Switch
- Actuator Type: Electro-Hydraulic
- Application: Commercial/Industrial Combustion
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