
Siemens Combustion VGD20.403U Valve
The Siemens VGD20.403U is a high-performance 1 1/2" NPT double gas valve designed for integration with SKP series primary actuators. Engineered for commercial and industrial combustion system safety, this double-block gas valve body features a high-flow design to minimize pressure drop while maintaining a compact footprint. It is suitable for natural gas, propane, and air applications, providing a reliable shut-off mechanism when paired with electro-hydraulic actuators. The VGD20.403U gas valve is rated for a maximum operating pressure of 10 PSI and is often utilized in burner manifolds where redundant safety sealing is required. Its modular design allows for the seamless mounting of gas pressure switches and vent valves, ensuring the assembly meets strict NFPA and UL standards for industrial heating equipment. For contractors, the rugged die-cast aluminum construction and integrated strainer screen provide long-term durability in demanding mechanical rooms.
Key Benefits
- Optimized Flow Dynamics: High-capacity design ensures minimal pressure drop across the 1 1/2 inch NPT ports, maximizing burner efficiency.
- Modular Compatibility: Seamlessly interfaces with Siemens SKP actuators (SKP15, SKP25, SKP55, or SKP75) for precise pressure regulation and safety shut-off.
- Redundant Safety: Two safety shut-off valves in a single body reduce leak points and simplify installation in double-block and bleed configurations.
- Field Serviceable: Features a replaceable internal strainer to protect the valve seats from debris and contaminants common in gas lines.
Common Technical Questions
What actuators are compatible with the VGD20.403U?
This valve body is designed specifically for the Siemens SKP series actuators, allowing for various control functions including constant pressure regulation or air-gas ratio control.
Does this valve require an external vent line?
When configured as a double-block valve with appropriate actuators, it meets safety requirements; however, verify local codes to determine if a vent-to-atmosphere line is required between the two valves.
Can the VGD20.403U handle Liquefied Petroleum (LP) gas?
Yes, the internal seals and materials are rated for natural gas, propane, and air, provided the pressure does not exceed the 10 PSI rating.
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: $1,145.24
-65%$1,145.24
$400.83Siemens Combustion VGD20.403U Valve
The Siemens VGD20.403U is a high-performance 1 1/2" NPT double gas valve designed for integration with SKP series primary actuators. Engineered for commercial and industrial combustion system safety, this double-block gas valve body features a high-flow design to minimize pressure drop while maintaining a compact footprint. It is suitable for natural gas, propane, and air applications, providing a reliable shut-off mechanism when paired with electro-hydraulic actuators. The VGD20.403U gas valve is rated for a maximum operating pressure of 10 PSI and is often utilized in burner manifolds where redundant safety sealing is required. Its modular design allows for the seamless mounting of gas pressure switches and vent valves, ensuring the assembly meets strict NFPA and UL standards for industrial heating equipment. For contractors, the rugged die-cast aluminum construction and integrated strainer screen provide long-term durability in demanding mechanical rooms.
Key Benefits
- Optimized Flow Dynamics: High-capacity design ensures minimal pressure drop across the 1 1/2 inch NPT ports, maximizing burner efficiency.
- Modular Compatibility: Seamlessly interfaces with Siemens SKP actuators (SKP15, SKP25, SKP55, or SKP75) for precise pressure regulation and safety shut-off.
- Redundant Safety: Two safety shut-off valves in a single body reduce leak points and simplify installation in double-block and bleed configurations.
- Field Serviceable: Features a replaceable internal strainer to protect the valve seats from debris and contaminants common in gas lines.
Common Technical Questions
What actuators are compatible with the VGD20.403U?
This valve body is designed specifically for the Siemens SKP series actuators, allowing for various control functions including constant pressure regulation or air-gas ratio control.
Does this valve require an external vent line?
When configured as a double-block valve with appropriate actuators, it meets safety requirements; however, verify local codes to determine if a vent-to-atmosphere line is required between the two valves.
Can the VGD20.403U handle Liquefied Petroleum (LP) gas?
Yes, the internal seals and materials are rated for natural gas, propane, and air, provided the pressure does not exceed the 10 PSI rating.
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.
Product Information
Product Information
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Description
The Siemens VGD20.403U is a high-performance 1 1/2" NPT double gas valve designed for integration with SKP series primary actuators. Engineered for commercial and industrial combustion system safety, this double-block gas valve body features a high-flow design to minimize pressure drop while maintaining a compact footprint. It is suitable for natural gas, propane, and air applications, providing a reliable shut-off mechanism when paired with electro-hydraulic actuators. The VGD20.403U gas valve is rated for a maximum operating pressure of 10 PSI and is often utilized in burner manifolds where redundant safety sealing is required. Its modular design allows for the seamless mounting of gas pressure switches and vent valves, ensuring the assembly meets strict NFPA and UL standards for industrial heating equipment. For contractors, the rugged die-cast aluminum construction and integrated strainer screen provide long-term durability in demanding mechanical rooms.
Key Benefits
- Optimized Flow Dynamics: High-capacity design ensures minimal pressure drop across the 1 1/2 inch NPT ports, maximizing burner efficiency.
- Modular Compatibility: Seamlessly interfaces with Siemens SKP actuators (SKP15, SKP25, SKP55, or SKP75) for precise pressure regulation and safety shut-off.
- Redundant Safety: Two safety shut-off valves in a single body reduce leak points and simplify installation in double-block and bleed configurations.
- Field Serviceable: Features a replaceable internal strainer to protect the valve seats from debris and contaminants common in gas lines.
Common Technical Questions
What actuators are compatible with the VGD20.403U?
This valve body is designed specifically for the Siemens SKP series actuators, allowing for various control functions including constant pressure regulation or air-gas ratio control.
Does this valve require an external vent line?
When configured as a double-block valve with appropriate actuators, it meets safety requirements; however, verify local codes to determine if a vent-to-atmosphere line is required between the two valves.
Can the VGD20.403U handle Liquefied Petroleum (LP) gas?
Yes, the internal seals and materials are rated for natural gas, propane, and air, provided the pressure does not exceed the 10 PSI rating.
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.












