Vaillant gas valve is a device used for gas distribution. When the need for gas in the burner increases, a signal is sent from the electronic control to the gas valve, which upon opening allows gas to pass through the valve in to the pilot assembly or the burn.
Natural gas external threads
Both male threads
Technical specification
Waist Sizeaa48ch14gsTypeFull Gas ValveSupplier Part Number114189Brand NameVaillant