초록 ▼

The invention relates to a thermally controlled steam trap with a casing formed from two disk-like wall portions, with a diaphragm arranged between them and which is tightly welded at its outer edge to the two wall portions and forming with one wall portion a chamber receiving an expansion medium, a

The invention relates to a thermally controlled steam trap with a casing formed from two disk-like wall portions, with a diaphragm arranged between them and which is tightly welded at its outer edge to the two wall portions and forming with one wall portion a chamber receiving an expansion medium, and with a closure centrally fixed to the diaphragm and cooperating through a bore in the second wall portion with a valve seat. According to the invention the closure 7 is centrally connected to the diaphragm 4 and a counterpart 15 by resistance force welding. In order to obtain a clean weld, the closure 7 is specially designed for resistance forge welding.

대표청구항 ▼

Steam trap comprising: a casing formed from two disk-like wall portions; a diaphragm positioned between the two wall portions, the diaphragm having an outer edge welded to the two wall portions and forming, with one of the wall portions, a chamber for receiving an expansion medium, the diaphragm als

Steam trap comprising: a casing formed from two disk-like wall portions; a diaphragm positioned between the two wall portions, the diaphragm having an outer edge welded to the two wall portions and forming, with one of the wall portions, a chamber for receiving an expansion medium, the diaphragm also having a central depression; a closure having a cylindrical partial body cooperating with a valve seat through an opening in another of the wall portions, a tapering, conical rotating body extending from the cylindrical partial body, and a spherical portion extending from the conical rotating body, the central depression of the diaphragm receiving the spherical portion of the closure; and a counterpart disposed in the chamber and having a depression receiving the depression of the diaphragm so that the diaphragm is positioned between the counterpart and the spherical portion of the closure, the closure, the diaphragm and the counterpart being interconnected.