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Description
Siemens SKP75.501E2 Gas Valve Actuator 230V Ratio Pressure Governor (Air-Gas)Siemens SKP75. 501E2 Gas Valve Actuator (230V) The Siemens SKP75. 501E2 is an electro hydraulic actuator used on industrial and commercial combustion systems where reliable gas valve operation and rapid fail safe closure are required. SKP75 actuators are safety critical components. If an actuator fails, the valve may not complete its stroke correctly, often leading to burner lockout or shutdown. This unit is supplied for direct like for like
Siemens SKP75.501E2 Gas Valve Actuator (230V)
The Siemens SKP75.501E2 is an electro-hydraulic actuator used on industrial and commercial combustion systems where reliable gas valve operation and rapid fail-safe closure are required.
SKP75 actuators are safety-critical components. If an actuator fails, the valve may not complete its stroke correctly, often leading to burner lockout or shutdown. This unit is supplied for direct like-for-like replacement where the SKP75.501E2 is specified.
Compatibility and Use
- Used with Siemens gas valve bodies including: VGG, VGF, VGD2, VGD4, VRD, VRF
- Typical applications: industrial burners, boilers, ovens, dryers, and process heating systems
- Fail-safe spring-return closure on power loss (< 0.8 s on power loss)
- Function: Safety shut-off + ratio pressure governor
Note: Always match the full Siemens part number and electrical specification shown on the actuator rating plate.
Technical Data
SKP75: Together with a compatible Siemens valve body, the actuator combines safety shut-off with ratio pressure control to maintain an air-gas ratio across the load range, depending on configuration.
Notes: Greater parallel displacement
Mains voltage: 230V
Stages: 1-stage
Switch configuration: WITH end switch
Degree of protection: IP54
Weight: 2.3 kg
Opening time for full stroke: 6 to 10 s (depends on valve size)
Opening speed: approx. 2 mm/s
Functional Operation
When the actuator is energised, an internal pump transfers hydraulic fluid within the actuator to build pressure in the stroke chamber. This drives the piston to open the gas valve against the return spring.
When power is removed, the pump stops and the internal relief path allows the return spring to drive the piston back, closing the valve quickly to a safe position.
Typical Failure Symptoms
- Gas valve not opening during start-up
- Burner fails to prove or locks out
- Actuator does not complete stroke
- Switch feedback not detected by the control system (where fitted)
Replacement Guidance
This actuator should be replaced like-for-like. Voltage, switch configuration, and functional type must match the original unit. If you are unsure whether SKP75.501E2 is correct for your valve, our technical team can confirm compatibility before ordering.
You can send a photo of the existing actuator rating plate or valve assembly to ensure correct selection.
Documentation
Manufacturer technical documentation and installation instructions should be followed during installation and commissioning.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy