Overview
The Siemens SKP75.003E2 is a high-performance electro-hydraulic actuator designed for use with gas and air valves in industrial and commercial combustion systems. It functions as a ratio pressure governor, controlling gas pressure in relation to combustion air pressure to maintain a constant air-gas ratio throughout the burner’s entire load range. This safety-critical component provides both shut-off and precise pressure regulation in a single unit, eliminating the need for separate upstream constant pressure regulators in many applications.
Features
- Combined safety shut-off and air-gas ratio control in a single compact unit
- Electro-hydraulic opening with a fail-safe spring-return closure in less than 0.8 seconds
- Automatic compensation for variations in combustion chamber back pressure
- Integrated stroke indication via a transparent window for visual position monitoring
- Simplified commissioning with low-fire and excess-air biasing adjustments
- Durable design with IP54 protection rating for reliable operation in industrial environments
- Modular construction compatible with various Siemens valve bodies (VGG, VGF, VGD, VRD)
Specifications
- Model: SKP75.003E2
- Operating Voltage: AC 230 V (50/60 Hz)
- Power Consumption: Maximum 13.5 VA
- Function: Single-stage opening and closing with ratio pressure governor
- Opening Time: Approximately 6 to 14 seconds (depending on valve size)
- Closing Time: Less than 0.8 seconds
- Ambient Temperature Range: -10 C to +60 C
- Protection Rating: IP54
- Weight: Approximately 2.3 kg (5.1 lbs)
- Switch Configuration: Without end switch (no Proof of Closure switch)
Applications
- Modulating forced draught gas burners
- Industrial and commercial boilers and furnace systems
- Premix burner applications requiring precise air-fuel ratio maintenance
- Large-scale ovens, dryers, and process heating equipment
- Compensation systems for plants with flue gas fans or modulating flue gas dampers


Reviews
There are no reviews yet.