Siemens Actuator SKP75 Series
Siemens Actuator SKP75 Series is an electrohydraulic gas valve actuator with an integrated gas/air ratio pressure governor. It regulates gas pressure according to combustion air pressure to maintain the selected gas/air pressure ratio across the burner load range. Designed for compatible Siemens VGx/VRx gas valves, the SKP75 is particularly suitable for modulating forced-draft gas burners, industrial boilers, and gas-fired combustion systems.
Product Details
Siemens Actuator SKP75 Series
Siemens Actuator SKP75 Series
Siemens Actuator SKP75 Series is an electrohydraulic gas valve actuator equipped with an integrated gas/air ratio pressure governor. It is designed for gas-fired combustion systems requiring continuous burner output modulation.
The SKP75 regulates gas pressure according to combustion air pressure, maintaining the selected gas/air pressure ratio throughout the burner load range. When combined with compatible Siemens gas valves, it also provides a safety shut-off function.
Key Features
- Electrohydraulic actuator with integrated gas/air ratio pressure governor
- Adjustable gas/air differential pressure ratio from 0.4 to 9
- Maintains the selected gas/air pressure ratio across the burner modulation range
- Damped valve opening and rapid closing upon shutdown
- Maximum permissible operating pressure of 120 kPa, subject to valve specifications
- Available with or without an end switch
- AC 120 V and AC 230 V versions available
- IP54 protection, upgradeable to IP65 with specified accessories
Applications
- Modulating forced-draft gas burners
- Industrial steam boilers
- Industrial gas combustion systems
- Industrial furnaces and heating equipment
- Gas/air ratio control systems
Available Models
- SKP75.001E1 / SKP75.001E2
- SKP75.003E1 / SKP75.003E2
- SKP75.501E2
Note: Model selection should consider supply voltage, valve compatibility, operating pressure, and end-switch requirements. Refer to the official Siemens technical documentation before installation or replacement.
Technical Specifications
Siemens SKP75 Series Technical Specifications
| Brand | Siemens |
|---|---|
| Series | SKP75 |
| Product Type | Electrohydraulic Gas Valve Actuator |
| Control System | Gas/Air Ratio Pressure Governor |
| Supply Voltage | AC 120 V (-15%/+10%) or AC 230 V (-15%/+10%) |
| Frequency | 50/60 Hz (±6%) |
| Power Consumption | Max. 10 VA (European versions) |
| Maximum Operating Pressure | 120 kPa |
| Controlled Gas Differential Pressure | 0.08-12 kPa |
| Adjustable Gas/Air Pressure Ratio | 0.4-9 |
| Factory-Set Pressure Ratio | 1.3 |
| Control Accuracy | <10% at minimum differential pressure; <2% at maximum differential pressure |
| Typical Opening Speed | Approx. 2 mm/s |
| Closing Time | <1 second at shutdown |
| Degree of Protection | IP54 / IP65 with AGA66 accessory |
| Safety Class | Class I |
| Operating Temperature | -10 to +60 °C |
| Relative Humidity | <95% RH |
| Weight | Approx. 2.3 kg |
| Gas Families | I-III, depending on the valve used |
| Compatible Valves | Siemens VGx/VRx series, subject to model compatibility |
| Referenced Standards | EN 161, DIN EN 88-1 |
Note: Specifications are based on Siemens Data Sheet CC1N7643en (06.04.2022). Verify the exact model and valve compatibility before ordering or installation.
Dimensions
Documents & Downloads
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