Patent ID: 7219694
Filing Date: 2007-05-22
Classification: F16L,Y10S,Y10T

Abstract:
1. Connector for piping destined to the transfer of fluid at very low temperature, in particular liquefied natural gas, comprising a first and a second length of piping ( 8 , 9 ) provided with respective closing valves ( 20 , 27 ) and destined to be fastened, respectively, to a piping ( 2 ) for the inflow of the fluid and to a piping ( 6 ) for the receiving of the fluid and a quick-coupling mechanism ( 34 ) mounted onto the second length of piping ( 9 ) and comprising a circumferential sequence of jaws ( 36 ) that are suitable to provide a firm front coupling between terminal flanges ( 12 , 17 ) of the two lengths of piping ( 8 , 9 ), and means ( 35 38 ) for the driving of the jaws, characterised in that each one of said lengths of piping ( 8 , 9 ) is surrounded by an external coating band ( 23 , 30 ) that defines with said lengths of piping a thermally insulating interspace ( 25 , 32 ), the two coating bands ( 23 , 30 ) being passed through by respective mechanisms ( 22 , 29 ) for the transmission of the motion to said closing valves ( 20 , 27 ) and the coating band ( 30 ) of the second length of piping ( 9 ) serving as a support for said quick-coupling mechanism ( 34 ).