Overview
The Siemens VGD40.100 is a compact, DN100 (4-inch) flanged double gas valve body designed for use in gas trains. It consists of two Class A safety shut-off valves in series, engineered to provide high flow rates and reliable shut-off for commercial and industrial burners. This modular valve body is designed to be paired with two Siemens SKP series electro-hydraulic actuators to perform multiple functions, including safety shut-off, gas pressure regulation, and air-gas ratio control, thereby reducing the size and weight of the gas train.
Features
- Double-seat disk design for each valve to achieve maximum flow capacity
- Patented seat construction with individual closing springs for reliable shut-off
- Integrated stainless steel mesh strainer (0.9 mm) at the inlet to protect downstream components from dirt and debris
- Normally closed operation for enhanced safety
- Capable of being fitted or replaced with actuators while under gas pressure
- Die-cast aluminum body construction for durability and weight reduction
- Multiple pressure test points (1/4-inch NPT) for monitoring inlet and outlet pressure
Specifications
- Model: VGD40.100
- Nominal Size: DN100 (4-inch)
- Connection Type: Flanged (ANSI Class 150)
- Flow Rate: 400 m³/h air (at Δp = 1 kPa)
- Maximum Operating Pressure: 10 psi (approx. 700 mbar)
- Close-off Pressure: 30 psi
- Operating Temperature: 14°F to 140°F (-10°C to 60°C)
- Body Material: Die-cast aluminum
- Approvals: CE, UL listed, FM approved, CSA certified
Applications
- Integration into gas trains for forced draft burners
- Industrial and commercial gas-fired combustion plants
- Safety shut-off systems when used with SKP15 series actuators
- Pressure regulation and air-gas ratio control when combined with SKP25, SKP55, or SKP75 actuators
- Suitable for use with gases of gas families I, II, and III (natural gas, propane, butane, and air)




Reviews
There are no reviews yet.