in the openings 86 to secure the clamping ring 20 to the attachment sleeve 80 the frangible connector 70 further comprises the flanged attachment sleeve 50 the inturned flange 51 of the attachment sleeve 50 being received in the notch 22 of the clamping ring 20 whereby the attachment sleeve 50 is 34 captured 34 adjacent the attachment sleeve 80 and is free to rotate relative to the attachment sleeve 80 and clamping ring 20 the radially outwardly extending flange 53 provides means for imparting the rotational movement although not illustrated the frangible connector 70 is utilized to connect housings by first threading the attachment sleeve 80 into a first one of the housings then the second housing is threaded onto the attachment sleeve 50 and the attachment sleeve 50 is rotated via the flange 53 to draw the second housing into assembled relationship with the first housing while maintaining a desired angular orientation between the housings it will be appreciated that the clamping ring 20 may define an axial extending opening receiving a pin extending from the housing being threaded onto the flanged attachment sleeve the frangible connector 70 thereby also provides a smooth exterior in the assembled unit and conceals and shields the frangible screws upon application of loads to the self closing breakaway valve assembly such as a load which 34 bends 34 the housings relative to each other the frangible screws 28 give way and permit the frangible connector 10 and the housings 110 and 130 to separate this releases the engagement between the spider members 125 and 145 permitting the valve members 120 and 140 to rotate toward their closed positions if the trigger ball 150 for any reason does not release from one of the spider members the protruding trigger ball.