Siemens Actuator SKP25 Series
Siemens Actuator SKP25 Series is an electrohydraulic gas valve actuator with an integrated gas pressure governor, designed for industrial gas burners and combustion systems. It provides gas pressure regulation, damped valve opening, and rapid safety shut-off. Compatible with suitable Siemens VGx/VRx gas valves, the SKP25 Series is used in industrial boiler systems, forced-draft burners, and gas combustion applications.
Product Details
Siemens Actuator SKP25 Series
Siemens Actuator SKP25 Series
Siemens Actuator SKP25 Series is an electrohydraulic gas valve actuator equipped with a gas pressure governor. It is designed for gas pressure regulation and safety shut-off applications in industrial burners and combustion systems.
When combined with compatible Siemens VGx/VRx gas valves, the SKP25 actuator provides controlled valve opening, rapid closing, and gas pressure regulation according to the selected setpoint. The actuator is primarily used with forced-draft gas burners and industrial combustion equipment.
Key Features
- Electrohydraulic gas valve actuator with gas pressure governor
- Gas pressure regulation using a setpoint spring or air pressure signal, depending on the model
- Damped opening and rapid closing for gas safety shut-off
- Compatible with suitable Siemens VGx/VRx gas valves
- Suitable for gas families I-III, subject to valve compatibility
- Valve stroke indication
- Optional factory-set end switch for closed-position indication
- IP54 protection, upgradeable to IP65 with specified accessories
SKP25 Series Models
- SKP25.0: Constant gas pressure regulation for mechanical or electronic air/fuel ratio control systems
- SKP25.2: Two-stage pressure setpoint changeover
- SKP25.3: Proportionate pressure governor
- SKP25.4: High-pressure regulation with control ranges up to 200 kPa
- SKP25.6: Zero pressure governor
Applications
- Industrial gas burners
- Industrial boiler systems
- Forced-draft gas burners
- Gas train pressure control systems
- Industrial heating equipment
- Gas-fired combustion systems
Note: The actuator model, supply voltage, pressure regulation range, and valve compatibility must be verified before selection. Installation and commissioning must be performed by qualified personnel.
Technical Specifications
Siemens SKP25 Series Technical Specifications
| Brand | Siemens |
|---|---|
| Series | SKP25 Series |
| Product Type | Electrohydraulic Gas Valve Actuator |
| Control System | Gas Pressure Governor |
| Main Function | Safety Shut-Off and Gas Pressure Regulation with compatible gas valves |
| Supply Voltage |
AC 230 V (-15%/+10%) - E2 models AC 120 V (-15%/+10%) - E1 models Japan-specific versions available |
| Frequency | 50/60 Hz ±6% (European versions) |
| Power Consumption |
Max. 10 VA (standard Ex versions) Max. 35 VA (SKP25.2xxEx, stage 2) |
| Closing Time | Less than 1 second |
| Typical Opening Speed | Approx. 2 mm/s |
| Degree of Protection | IP54 / IP65 with specified AGA66 accessories and installation |
| Safety Class | Class I |
| Gas Families | I-III |
| Maximum Operating Pressure |
120 kPa - SKP25.0/.2/.3/.6 230 kPa - SKP25.4 with VGJ valve |
| Operating Temperature | -10 to +60°C (general range; model-specific restrictions apply) |
| Duty Cycle | 100% |
| Weight |
Approx. 1.6 kg (SKP25.0) Approx. 2.1 kg (SKP25.2) |
| Compatible Valves | Siemens VGx/VRx Series, subject to compatibility requirements |
Gas Pressure Regulation Ranges
| Model | Gas Pressure Control Range |
|---|---|
| SKP25.0 | 0.05-25 kPa |
| SKP25.2 | 0.2-6 kPa |
| SKP25.2xxxxL | 0.2-2 kPa |
| SKP25.3 | 0.05-5 kPa |
| SKP25.4 | 7-200 kPa |
| SKP25.6 | Zero Pressure Governor (control pressure below atmospheric reference) |
Note: The actual regulation range depends on the actuator version and selected setpoint spring. The permissible pressure of the complete valve assembly is limited by its lowest-rated component.
Dimensions
Documents & Downloads
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