What does cxc stand for in copper fittings?
Question:
Answers:
C = cupped end - the type you would slide over another pipe to make a sweat connection
FTG = fitting end - the type that slides inside a cupped end, also called a "street" fitting
M = male pipe threads
FE (sometimes listed as just F, not correct)= female pipe threads
There are several others, those are just the ones I can think of.
The "X" is "by", so C X C is "cupped by cupped", a fitting with two ends such as a coupling or elbow, both cupped for sweating onto a pipe or fitting end.
C X C X C would be a fitting with three ends such as a tee, all cupped.
C X FTG could be a street elbow or a reducing bushing, one part slides over a pipe, the other inside another cupped fitting.
C is indeed a cupped fitting. CMP is compression, but there is no such thing as a copper fitting with a compression connection. There are brass and plastic compression fittings that will fit copper pipe, but not copper compression fittings.
The previous answerer has it about right but the proper terminology is for C x C is compression x Compression. A compression fitting simply squeezes the copper pipe to form a seal.
Actually, the vernacular in the trade catalogs means that the fitting is c for copper. Hence, c x c would mean copper to copper sweated. C x f is copper to threaded iron, usu. mpt or fpt, ( male or female ) pipe threads. Br. would be threaded brass. Compression fittings are listed as comp x whatever else. Fl. for flare for egs. Hope that helps.
lurned1 got it. i use that crap everyday too
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