Line heating tube for heating passing water in beverage preparing device, has water supply pipe whose end side tapers to form tapering zone that forms inserting region for pipe, where tapering zone is integrally formed at pipe

摘要

The tube has a water supply pipe (1) and electrical heating elements (3) that are indirectly or directly fastened to the water supply pipe. End side of water supply pipe tapers to form a tapering zone (4) that forms an inserting region for a water supply pipe. The tapering zone is integrally formed at the water supply pipe. A conical taper (5) is formed at the water supply pipe for formation of tapering zone. A cylindrical reduced end piece (6) is formed at the conical taper. A circular collar (7) is formed at the reduced end piece and radially projects against a cover of the end piece.