Venturi inferior De Dietrich 7628639

A lower venturi is a component used in gas burner systems to create a pressure difference that draws in air for mixing with fuel. This part is crucial for maintaining the correct air-to-gas ratio, which directly affects combustion efficiency and emissions. Designed for specific burner models, the lower venturi helps ensure consistent flame quality and reliable operation. Replacing a worn or clogged venturi can restore proper burner performance and reduce energy waste. It is a key spare part for boiler and burner maintenance.