Valve Assembly of Vaporizer for Welding Machine

The present invention relates to an ethylene gas or LPG gas or the like in use the combustible gas installed in the carburetor for gasifying such as ethylene gas or LPG gas in the welder to perform the welding the valve assembly, the vaporizer valve assembly according to the invention, and the inlet through which gas flows, a hollow is formed with an outlet which gas is discharged and the valve housing; The hollow interior of the valve housing is provided to be movable by means of a gas pressure, and opening and closing the discharge port, and a valve seat with a surface facing the said discharge opening is formed to be stepped in at least two stages; It is installed at different heights in a stepped surface of the seat valve, a plurality of packing material and consisting of a flexible resin material; The valve assembly of the valve housing welding device vaporizer for are formed to protrude inward on the surface on which the outlet is formed configured to include a plurality of sealing projections with individual contacts to each of the packing material of the sheet closing the discharge port at the same time the It provides.