| 摘要 |
The disclosure relates to a tube coupling comprising a coupling body (12) having a throughway (13) open at one end (14) to receive a tube (11). The diameter of the throughway increases towards said open end at a first location to form a first enlarged diameter portion (15) to receive a tube and at a second location to form a second, further enlarged diameter portion (17) to receive a tube locking device (21) to hold a tube in the coupling body. A relatively hard plastics sleeve (30) has one end portion (32) which is a force fit in a tube (11) to be engaged in the coupling and the other end portion (31) has an integral collar (35) formed from a relatively soft plastics material with an integral upstanding annular sealing abutment (36) at the end of the sleeve to engage sealingly in the throughway of the coupling body beyond said first location to prevent ingress of fluids between the sleeve and throughway. <IMAGE> |
