VGD40.065L Siemens Gas Valve

Overview

The Siemens VGD40.065L is a high-performance double gas valve body designed for use in gas trains for burners and gas-fired combustion plants. It consists of two safety shut-off valves in series, providing a critical safety function by ensuring reliable gas shut-off. The “L” variant features an inverted position of the mounting plates for the pressure switch and pilot gas plate compared to the standard model, offering flexibility for specific installation requirements. These normally closed valves are engineered to be used in combination with Siemens SKP series electro-hydraulic actuators to provide functions such as safety shut-off, gas pressure regulation, and air-gas ratio control.

Features

• Double-seat disk design provides high flow rates and reliable shut-off
• Inverted mounting plate configuration for the pilot gas connection and pressure switch
• Integrated stainless steel mesh strainer (0.9 mm) protects the valve and downstream components from debris
• Modular design allows for combination with various SKP actuators (SKP15, SKP25, SKP55, SKP75)
• Stems are guided on both sides of the disks to ensure precise alignment and tight closure
• Durable die-cast aluminum valve body with stainless steel stems and nitrile rubber seals
• Capability to mount actuators while the valve is under pressure

Specifications

• Model: VGD40.065L
• Nominal Size: DN65 (2-1/2 inch)
• Connection: Flanged
• Flow Rate: 160 m3/h (at delta p = 10 mbar)
• Maximum Operating Pressure: 70 kPa (700 mbar / 10 psi)
• Valve Class: Class A according to EN 161
• Gas Families: Suitable for gas families I, II, and III
• Protection Rating: IP54 (when combined with appropriate actuators)
• Weight: Approximately 3.0 kg to 10 kg depending on configuration and packaging

Applications

• Gas-fired combustion plants for industrial and commercial use
• Gas trains in connection with forced draft gas burners
• Safety shut-off systems when used with SKP15 actuators
• Combined control and shut-off functions when used with SKP25, SKP55, or SKP75 actuators
• Integration into OEM burner systems requiring high-capacity gas control and safety supervision