F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
F23D14/10—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with elongated tubular burner head
Piece decoupee de tole pour la configuration d'un tuyau interieur pourvu de nervures longitudinales pliees qui peut etre mis en place dans un tuyau exterieur.