Connector device

A connector device for connection to a female part when the device is in use, the device comprising:

• a male part;
• a collet which surrounds the male part and is coupled thereto, which collet has an external screwthread which engages an internal screwthread on such a female part when the device is in use, and which collet has at least one slot in it extending longitudinally with respect to the axis of the screwthreads to enable it to be splayed;
• and
• a wedge part which is located between the male part and the collet and is displaceable longitudinally with respect to the axis of the screwthreads to splay the collet,
• wherein the collet is coupled to the male part by way of a reverse threaded collar of the device secured to the male part by way of interengaging screwthreads on the collar and the male part, an end of the collet abutting the collar during relative rotation between the screwthreads of the collet and such a female part in a given sense when the device is in use to cause the male part to sealingly engage such a female part, the collar then being adjacent to the sealing engagement, and wherein the splaying of the collet locks the male part and such a female part in such a sealing engagement with one another when the device is in use.