Siemens Combustion VGD20.503U Gas Valve
The Siemens VGD20.503U Gas Valve is a 2-inch NPT double-body gas valve engineered for critical safety shut-off and gas pressure regulation in industrial and commercial burner systems. This normally closed professional-grade valve features two safety shut-off valves in series within a single modular aluminum body, reducing the overall footprint of the gas train. The inlet valve utilizes a flat disc for primary safety shut-off, while the second outlet valve is equipped with a contoured disc, specifically optimized for precise air-gas ratio control and pressure regulation when paired with SKP series electro-hydraulic actuators. Internal mechanics include dual stem guides to ensure repeatable disc alignment and a stainless steel mesh inlet filter (0.9 mm) to protect downstream components from debris. Designed for high-demand combustion plants, the VGD20.503U facilitates simple maintenance via AGF threaded mounting flanges, eliminating the need for pipe unions and streamlining field service for commercial HVAC contractors.
Key Benefits- Modular Double-Valve Design: Consolidates two safety shut-off valves in series for a compact gas train assembly.
- Enhanced Regulation: Contoured outlet disc provides stable control when used with regulating actuators such as the SKP25, SKP55, or SKP75.
- Integrated Filtration: Built-in stainless steel mesh filter protects the valve seats and sensitive downstream burner components from contamination.
- Simplified Installation: Uses AGF mounting flanges with 1/4" NPT pressure taps, allowing the body to be removed without disturbing the primary piping.
- High Pressure Capacity: Designed to handle up to 10-20 psi maximum operating pressure depending on the specific agency listing and application.
What actuators are compatible with the VGD20.503U?
This valve body is designed to be paired with Siemens SKP series electro-hydraulic actuators. For simple safety shut-off, it is typically used with an SKP15. For pressure regulation or air-gas ratio control, it integrates with SKP25, SKP55, or SKP75 models.
Are mounting flanges included with the valve body?
No, the VGD20.503U requires two AGF series threaded flanges (typically 2" NPT) which must be ordered as separate items to complete the installation.
Can this valve handle aggressive or corrosive gasses?
The VGD20.503U is rated for use with natural gas, propane, butane, and other non-corrosive gas families. It is not suitable for use with corrosive bio-gasses unless otherwise specified by the manufacturer's technical documentation.
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: $1,283.62
-65%$1,283.62
$449.27Siemens Combustion VGD20.503U Gas Valve
The Siemens VGD20.503U Gas Valve is a 2-inch NPT double-body gas valve engineered for critical safety shut-off and gas pressure regulation in industrial and commercial burner systems. This normally closed professional-grade valve features two safety shut-off valves in series within a single modular aluminum body, reducing the overall footprint of the gas train. The inlet valve utilizes a flat disc for primary safety shut-off, while the second outlet valve is equipped with a contoured disc, specifically optimized for precise air-gas ratio control and pressure regulation when paired with SKP series electro-hydraulic actuators. Internal mechanics include dual stem guides to ensure repeatable disc alignment and a stainless steel mesh inlet filter (0.9 mm) to protect downstream components from debris. Designed for high-demand combustion plants, the VGD20.503U facilitates simple maintenance via AGF threaded mounting flanges, eliminating the need for pipe unions and streamlining field service for commercial HVAC contractors.
Key Benefits- Modular Double-Valve Design: Consolidates two safety shut-off valves in series for a compact gas train assembly.
- Enhanced Regulation: Contoured outlet disc provides stable control when used with regulating actuators such as the SKP25, SKP55, or SKP75.
- Integrated Filtration: Built-in stainless steel mesh filter protects the valve seats and sensitive downstream burner components from contamination.
- Simplified Installation: Uses AGF mounting flanges with 1/4" NPT pressure taps, allowing the body to be removed without disturbing the primary piping.
- High Pressure Capacity: Designed to handle up to 10-20 psi maximum operating pressure depending on the specific agency listing and application.
What actuators are compatible with the VGD20.503U?
This valve body is designed to be paired with Siemens SKP series electro-hydraulic actuators. For simple safety shut-off, it is typically used with an SKP15. For pressure regulation or air-gas ratio control, it integrates with SKP25, SKP55, or SKP75 models.
Are mounting flanges included with the valve body?
No, the VGD20.503U requires two AGF series threaded flanges (typically 2" NPT) which must be ordered as separate items to complete the installation.
Can this valve handle aggressive or corrosive gasses?
The VGD20.503U is rated for use with natural gas, propane, butane, and other non-corrosive gas families. It is not suitable for use with corrosive bio-gasses unless otherwise specified by the manufacturer's technical documentation.
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 VGD20.503U Gas Valve is a 2-inch NPT double-body gas valve engineered for critical safety shut-off and gas pressure regulation in industrial and commercial burner systems. This normally closed professional-grade valve features two safety shut-off valves in series within a single modular aluminum body, reducing the overall footprint of the gas train. The inlet valve utilizes a flat disc for primary safety shut-off, while the second outlet valve is equipped with a contoured disc, specifically optimized for precise air-gas ratio control and pressure regulation when paired with SKP series electro-hydraulic actuators. Internal mechanics include dual stem guides to ensure repeatable disc alignment and a stainless steel mesh inlet filter (0.9 mm) to protect downstream components from debris. Designed for high-demand combustion plants, the VGD20.503U facilitates simple maintenance via AGF threaded mounting flanges, eliminating the need for pipe unions and streamlining field service for commercial HVAC contractors.
Key Benefits- Modular Double-Valve Design: Consolidates two safety shut-off valves in series for a compact gas train assembly.
- Enhanced Regulation: Contoured outlet disc provides stable control when used with regulating actuators such as the SKP25, SKP55, or SKP75.
- Integrated Filtration: Built-in stainless steel mesh filter protects the valve seats and sensitive downstream burner components from contamination.
- Simplified Installation: Uses AGF mounting flanges with 1/4" NPT pressure taps, allowing the body to be removed without disturbing the primary piping.
- High Pressure Capacity: Designed to handle up to 10-20 psi maximum operating pressure depending on the specific agency listing and application.
What actuators are compatible with the VGD20.503U?
This valve body is designed to be paired with Siemens SKP series electro-hydraulic actuators. For simple safety shut-off, it is typically used with an SKP15. For pressure regulation or air-gas ratio control, it integrates with SKP25, SKP55, or SKP75 models.
Are mounting flanges included with the valve body?
No, the VGD20.503U requires two AGF series threaded flanges (typically 2" NPT) which must be ordered as separate items to complete the installation.
Can this valve handle aggressive or corrosive gasses?
The VGD20.503U is rated for use with natural gas, propane, butane, and other non-corrosive gas families. It is not suitable for use with corrosive bio-gasses unless otherwise specified by the manufacturer's technical documentation.
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.
