The Siemens VGD20, VGD40, and VRD40 series are normally-closed gas valves designed for industrial combustion systems. These valves consist of two safety shut-off valves arranged in series, ensuring maximum safety and reliable gas isolation in burner gas trains.

They are designed to work with Siemens SKP series actuators (such as SKP15, SKP25, SKP55, and SKP75), allowing different functions including gas safety shut-off, constant pressure regulation, and air-gas ratio control depending on the actuator used.

The modular construction allows easy installation and maintenance while providing high flow capacity for industrial burners, boilers, furnaces, and thermal process equipment. These valves are widely used in industrial burner gas trains where safe and reliable gas control is essential.

Key Features

• Modular double safety shut-off gas valve design

• Compatible with Siemens SKP series gas actuators

• Provides safe and reliable gas isolation

• Integrated stainless-steel inlet filter

• Dual valve seats for tight shut-off

• Pressure test ports for easy system diagnostics

• Suitable for high-capacity industrial burners

• Durable construction for industrial environments

• Multiple connection sizes and flow capacities available

Applications

• Industrial gas burners

• Steam boilers

• Industrial furnaces

• Thermal oil heaters

• Process heating equipment

• Commercial combustion systems

• Burner gas trains for manufacturing plants

Why Choose Siemens VGD20, VGD40, and VRD40 gas valves?

• Trusted Siemens combustion control technology

• Double safety shut-off design for enhanced safety

• Compatible with a wide range of SKP gas actuators

• High flow capacity for industrial burner applications

• Modular design simplifies installation and maintenance

• Reliable operation in demanding industrial environments

Technical Description

The VGD20, VGD40, and VRD40 gas valves are normally closed, two-way double valves used in industrial burner gas trains. Each valve body contains two safety valves connected in series, ensuring secure shut-off of the gas supply.

The first valve provides the primary safety shut-off function, while the second valve ensures stable gas flow control and regulation when used with the appropriate actuator.

When paired with SKP electro-hydraulic actuators, these valves can perform multiple functions including:

• Gas safety shut-off

• Constant pressure regulation

• Air-gas ratio control

This combination allows burner manufacturers to design compact, efficient, and safe gas trains for industrial combustion systems.

Technical Specifications