Gas soldering torch with fuel preheating

摘要

This invention concerns a gas welder which comprises a body and in said body a burner, a control valve of the transit of gas from a liquid gas cartridge to the burner through a nozzle, and eventually a piezoelectric lighter and is characterised by a means (23) of circulating and heating the gas supplied by the liquid gas cartridge so as to eliminate the liquid phase before the gas reaches nozzle and burner.