VGD40.065 Siemens Gas Valve

Overview

The Siemens VGD40.065 is a high-capacity, double-body gas valve designed for the reliable supervision and control of gas flow in commercial and industrial burner systems. This compact unit consists of two safety shut-off valves in series, engineered to provide a safe shut-off function when used in combination with Siemens SKP series electro-hydraulic actuators. Its modular design allows it to perform multiple functions, including gas pressure regulation and air-gas ratio control, depending on the attached actuator, which significantly reduces the size and complexity of the gas train.

Features

• Double-valve design featuring two safety shut-off valves in series for enhanced operational safety
• High-flow double seat construction with individual closing springs for each seat to ensure a high close-off pressure rating
• Integrated stainless steel mesh filter with a 0.9 mm mesh size to protect valve seats and downstream components from contamination
• Dual stem guides provide precise disc alignment for consistent, tight shut-off performance
• Multiple pressure test points (1/4 inch NPT) located on the inlet, outlet, and between the main valves for easy monitoring
• Modular flexibility allows for slow opening and rapid closing when paired with appropriate SKP actuators
• Durable die-cast aluminum body construction suitable for various gas families and air

Specifications

• Model: VGD40.065
• Connection Size: 2-1/2 inch (DN65)
• Connection Type: Flanged (standard) or Threaded (U-versions)
• Flow Rate: 160 m3/h (air at delta p = 1 kPa)
• Maximum Operating Pressure: 100 kPa (approx. 15 psi) depending on version
• Valve Class: Class A conforming to EN 161
• Body Material: Die-cast aluminum
• Medium: Gas families I, II, III and air
• Approvals: UL listed, FM approved, CSA certified, and CE marked versions available

Applications

• Supervision of gas and air supply in industrial and commercial burner systems
• Use in gas trains for forced draft burners to provide safety shut-off
• Integration into systems requiring gas pressure regulation or air-gas ratio control (when used with SKP25, SKP55, or SKP75 actuators)
• Suitable for high-demand combustion plants in HVAC and process heating environments