I need to join a new 22mm copper pipe to an incoming main which has got written on it - Qualplast 1972 1/2". It is a black plastic pipe. The o.d of the pipe is just under an inch. This implies a fairly large wall thickness, assuming the internal diameter is 1/2".
Have I got this right?
Also, what fitting can I use to join to 22mm copper? At the moment there's a imperial compression stopcock, reducing to 15mm. And do I need an insert into the black pipe?
Have I got this right?
Also, what fitting can I use to join to 22mm copper? At the moment there's a imperial compression stopcock, reducing to 15mm. And do I need an insert into the black pipe?