BITE TYPE TUBE CONNECTION STRUCTURE, TUBE FITTING, VALVE, CLOSING VALVE, REFRIGERATING CYCLE DEVICE, HOT-WATER SUPPLY DEVICE, BITE TYPE TUBE CONNECTION METHOD, AND ON-SITE TUBE CONNECTION METHOD

A fitting has a bite type tube connection structure with a bite type sleeve in cylindrical form. The bite type sleeve is formed of a primary deforming portion and a secondary deforming portion. The primary deforming portion bites into a connection tube 5 or is inserted between the fitting main body...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	NAKATA HARUO, SHIMAMURA TAKASHI, NAKAYA TSUKASA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBINED HEATING AND REFRIGERATION SYSTEMS ENGINEERING ELEMENTS AND UNITS 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 REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A fitting has a bite type tube connection structure with a bite type sleeve in cylindrical form. The bite type sleeve is formed of a primary deforming portion and a secondary deforming portion. The primary deforming portion bites into a connection tube 5 or is inserted between the fitting main body and the connection tube in a wedge-like fashion as a result of a first pressing force in the axial direction applied when a fastening nut is fastened. The secondary deforming portion is deformed by a second pressing force in the axial direction applied when the fastening nut is fastened and greater than the first pressing force. When the primary deforming portion bites into the connection tube, the connection tube is temporarily held against the fitting main body. Then, the fastening operation is completed by fastening the fastening nut.