FLARELESS-TYPE PIPE FITTING, REFRIGERATING DEVICE, AND WATER- HEATING DEVICE

In a flareless-type pipe joint, a pressing surface 25, which presses a rear end portion of a ferrule 3 in the axial direction and toward the inner periphery of the ferrule 3, is formed in a joint body 1 or a coupling member 2 in which a cam surface 19 is not formed. The ferrule 3 has a groove 36 tha...

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Bibliographische Detailangaben
Hauptverfasser:	HASHIMOTO, AKIRA, MURAYAMA, YOSHIKI, NAKATA, HARUO, CHAZONO, SEIJI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS ENGINEERING ELEMENTS AND UNITS FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEAT PUMP SYSTEMS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MANUFACTURE OR STORAGE OF ICE MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES RANGES REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	In a flareless-type pipe joint, a pressing surface 25, which presses a rear end portion of a ferrule 3 in the axial direction and toward the inner periphery of the ferrule 3, is formed in a joint body 1 or a coupling member 2 in which a cam surface 19 is not formed. The ferrule 3 has a groove 36 that extends radially outward from the inner periphery. By pressing the rear end portion in the axial direction and toward the inner periphery by means of the pressing surface 25, the distal portion of the ferrule 3 is pressed against the cam surface 19 and an edge portion 3b of the distal portion is deformed to bite into a pipe p. Further, an edge portion 3c of a rear end portion of the inner peripheral surface of the ferrule 3 is deformed to bite into the pipe p.