Siemens Combustion SKP55.012U1 Actuator
The Siemens SKP55.012U1 Actuator is a specialized 120V electro-hydraulic solution designed for high-precision air/gas ratio control in industrial and commercial combustion systems. Engineered to work seamlessly with Siemens VG series gas valves, this differential pressure actuator functions as a safety shut-off valve, constant pressure regulator, and ratio controller in a single compact footprint. This integration eliminates the need for separate upstream regulators, reducing the overall size and complexity of the gas train.
Equipped with an integrated Proof of Closure (POC) switch and an adjustable auxiliary switch, the SKP55.012U1 provides critical feedback for system sequencing and safety interlocks. Its unique ability to maintain a constant air-to-gas ratio despite fluctuations in combustion chamber backpressure or air volume makes it ideal for premix burner applications and recuperative burners with preheated combustion air. The modular design supports 360-degree rotation, simplifying field wiring and installation in tight burner assemblies.
Key Benefits for Technicians- Streamlined Gas Train: Combines safety shut-off and ratio control, allowing for fewer natural gas valve components and fittings.
- Precision Ratio Control: Maintains consistent differential pressure tracking across the full modulation range without mechanical wear or drift.
- Enhanced Safety Feedback: Features a factory-set Proof of Closure (POC) switch for valve position verification.
- Universal Compatibility: Mounts directly to Siemens VG gas valves from 1/2-inch to 6-inch sizes using four pre-mounted screws.
- Quick Status Monitoring: Includes a visible position indicator and a "power on" LED for immediate diagnostic checks.
Can the Proof of Closure (POC) switch be adjusted in the field?
No, the POC switch is a non-adjustable safety feature designed to signal the fully closed position. The auxiliary switch, however, can be adjusted between 40% and 100% of the stroke.
What happens to the valve during a power interruption?
The actuator is designed for rapid fail-safe operation. While it opens slowly for controlled startup, it closes in less than 0.8 seconds when power is removed.
Does this unit require an external pressure regulator?
In most standard applications within the pressure limits of the accompanying VG valve body, an upstream constant pressure regulator is not required, as the SKP55 handles 1:1 ratio regulation internally.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $2,538.30
-65%$2,538.30
$888.40Siemens Combustion SKP55.012U1 Actuator
The Siemens SKP55.012U1 Actuator is a specialized 120V electro-hydraulic solution designed for high-precision air/gas ratio control in industrial and commercial combustion systems. Engineered to work seamlessly with Siemens VG series gas valves, this differential pressure actuator functions as a safety shut-off valve, constant pressure regulator, and ratio controller in a single compact footprint. This integration eliminates the need for separate upstream regulators, reducing the overall size and complexity of the gas train.
Equipped with an integrated Proof of Closure (POC) switch and an adjustable auxiliary switch, the SKP55.012U1 provides critical feedback for system sequencing and safety interlocks. Its unique ability to maintain a constant air-to-gas ratio despite fluctuations in combustion chamber backpressure or air volume makes it ideal for premix burner applications and recuperative burners with preheated combustion air. The modular design supports 360-degree rotation, simplifying field wiring and installation in tight burner assemblies.
Key Benefits for Technicians- Streamlined Gas Train: Combines safety shut-off and ratio control, allowing for fewer natural gas valve components and fittings.
- Precision Ratio Control: Maintains consistent differential pressure tracking across the full modulation range without mechanical wear or drift.
- Enhanced Safety Feedback: Features a factory-set Proof of Closure (POC) switch for valve position verification.
- Universal Compatibility: Mounts directly to Siemens VG gas valves from 1/2-inch to 6-inch sizes using four pre-mounted screws.
- Quick Status Monitoring: Includes a visible position indicator and a "power on" LED for immediate diagnostic checks.
Can the Proof of Closure (POC) switch be adjusted in the field?
No, the POC switch is a non-adjustable safety feature designed to signal the fully closed position. The auxiliary switch, however, can be adjusted between 40% and 100% of the stroke.
What happens to the valve during a power interruption?
The actuator is designed for rapid fail-safe operation. While it opens slowly for controlled startup, it closes in less than 0.8 seconds when power is removed.
Does this unit require an external pressure regulator?
In most standard applications within the pressure limits of the accompanying VG valve body, an upstream constant pressure regulator is not required, as the SKP55 handles 1:1 ratio regulation internally.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
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Description
The Siemens SKP55.012U1 Actuator is a specialized 120V electro-hydraulic solution designed for high-precision air/gas ratio control in industrial and commercial combustion systems. Engineered to work seamlessly with Siemens VG series gas valves, this differential pressure actuator functions as a safety shut-off valve, constant pressure regulator, and ratio controller in a single compact footprint. This integration eliminates the need for separate upstream regulators, reducing the overall size and complexity of the gas train.
Equipped with an integrated Proof of Closure (POC) switch and an adjustable auxiliary switch, the SKP55.012U1 provides critical feedback for system sequencing and safety interlocks. Its unique ability to maintain a constant air-to-gas ratio despite fluctuations in combustion chamber backpressure or air volume makes it ideal for premix burner applications and recuperative burners with preheated combustion air. The modular design supports 360-degree rotation, simplifying field wiring and installation in tight burner assemblies.
Key Benefits for Technicians- Streamlined Gas Train: Combines safety shut-off and ratio control, allowing for fewer natural gas valve components and fittings.
- Precision Ratio Control: Maintains consistent differential pressure tracking across the full modulation range without mechanical wear or drift.
- Enhanced Safety Feedback: Features a factory-set Proof of Closure (POC) switch for valve position verification.
- Universal Compatibility: Mounts directly to Siemens VG gas valves from 1/2-inch to 6-inch sizes using four pre-mounted screws.
- Quick Status Monitoring: Includes a visible position indicator and a "power on" LED for immediate diagnostic checks.
Can the Proof of Closure (POC) switch be adjusted in the field?
No, the POC switch is a non-adjustable safety feature designed to signal the fully closed position. The auxiliary switch, however, can be adjusted between 40% and 100% of the stroke.
What happens to the valve during a power interruption?
The actuator is designed for rapid fail-safe operation. While it opens slowly for controlled startup, it closes in less than 0.8 seconds when power is removed.
Does this unit require an external pressure regulator?
In most standard applications within the pressure limits of the accompanying VG valve body, an upstream constant pressure regulator is not required, as the SKP55 handles 1:1 ratio regulation internally.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
