The Model BG attachment is used in the PIK type metal sleeve pipe and join case body , does not have the whorl steel tube to join , the sleeve pipe butt joint of PIK, joins the threaded steel tube , it is convenient , reliable to install. Specification | PIK type metal sleeve pipe | BG type , VKC type , KS type, Model KG connector | Internal diameter mm | External diameter mm | Each length m | Pitch mm | Mix the whorl rightly | Mix the steel tube rightly | 12# | 11.4 | 16.1 | 50 | 1.6 | G1/2″ | 1/2″ | 15# | 14.1 | 19.0 | 50 | 1.6 | G1/2″ | 1/2″ | 17# | 16.6 | 21.5 | 50 | 1.6 | G1/2″ | 1/2″ | 24# | 23.8 | 28.8 | 25 | 1.6 | G3/4″ | 3/4″ | 30# | 29.3 | 34.9 | 25 | 1.8 | G1″ | 1″ | 38# | 37.1 | 42.9 | 25 | 1.8 | G1/1/4″ | 1/1/4″ | 50# | 49.1 | 54.9 | 25 | 1.8 | G1/1/2″ | 1/1/2″ | 63# | 62.6 | 69.1 | 10 | 2.0 | G2″ | 2″ | 76# | 76.0 | 82.9 | 10 | 2.0 | G2/1/2″ | 2/1/2″ | 83# | 81.0 | 88.1 | 10 | 2.0 | G3″ | 3″ | 101# | 100.2 | 107.3 | 5 | 2.0 | G3/1/2″ | 3/1/2″ | |