VGD20.503A Siemens Gas Valve
$1,076.10
The Siemens VGD20.503A is a high-capacity, compact double gas valve body designed for integration into gas trains. It consists of two safety shut-off valves in series, providing a critical safety function for gas-fired combustion plants. This modular valve body is engineered to work in conjunction with Siemens SKP series electro-hydraulic actuators to provide safety shut-off, gas pressure regulation, or air-gas ratio control. The VGD20.
Overview
The Siemens VGD20.503A is a high-capacity, compact double gas valve body designed for integration into gas trains. It consists of two safety shut-off valves in series, providing a critical safety function for gas-fired combustion plants. This modular valve body is engineered to work in conjunction with Siemens SKP series electro-hydraulic actuators to provide safety shut-off, gas pressure regulation, or air-gas ratio control. The VGD20.503A features a specific 1-inch BSP vent connection between the valves and is CE approved, making it suitable for industrial and commercial burner applications across various markets.
Features
- Double-valve design with two safety shut-off valves in a single compact body
- Integrated 1-inch BSP vent connection located between the two valve seats
- Built-in stainless steel mesh inlet filter to protect valve seats and downstream components
- Modular construction allows for easy mounting and replacement of actuators while the valve is under pressure
- Equipped with a universal mounting plate for the attachment of pressure switches or valve proving devices
- Internal threaded connections for easy integration into gas pipework
- Dual stem guides ensure precise disc alignment for reliable and tight shut-off
Specifications
- Model: VGD20.503A
- Pipe Size: 2 inch
- Connection Type: Threaded with 1 inch BSP vent
- Valve Class: Class A according to EN 161 (when used with SKP actuators)
- Maximum Operating Pressure: 150 kPa (1.5 bar)
- Static Pressure Rating: 150 kPa
- Volume between Valves: 0.8 liters
- Material: Aluminum AlSi10Mg
- Weight: Approximately 3.2 kg (7.05 lbs)
- Operating Temperature: -15 C to +60 C
Applications
- Integration into gas trains for gas-fired combustion plants
- Used with forced draft gas burners for safety shut-off and control
- Suitable for use with gas families I, II, and III, as well as air
- Ideal for commercial and industrial heating systems requiring high flow rates and reliable safety standards
- Compatible with Siemens SKP15, SKP25, SKP55, and SKP75 actuators for various regulation and safety configurations
| Weight | 12 lbs |
|---|---|
| Dimensions | 11 × 8 × 6 in |
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