DETACHABLE CONNECTION FOR THIN-WALLED POLYMERIC TUBE Russian patent published in 2004 - IPC

FIELD: machinery building, particularly pipe fittings for pneumatic and lubricating systems. SUBSTANCE: device for performing equipment and other components connection by means of thin-walled elastic polymeric tubes during arrangement of pipelines comprises connecting branch with outer thread and inner conical surface. Nipple is formed as cylinder with stepped junction. Polymeric tube is put on nipple. During screwing captive nut on connecting branch clip member presses outer diameter of polymeric tube. Clip member is formed as resilient elastic ring having, for instance, annular cross-section and surrounding outer tube surface with preloading thereof in area of stepped nipple junction. Resilient elastic ring contacts with conical inner surface of connecting branch. EFFECT: increased reliability, simplified structure. 1 dwg