On Sun, 16 Jan 2005 20:09:41 +0000, Graham Jones
strung together this:
Getting rather confused about compression fittings and thread sizings.
Take a 15mm straight coupler, e.g.
http://www.screwfix.com/app/sfd/cat/...88231&id=14921
The internal diameter if the fitting is obviously 15mm, to take
naturally 15mm pipe. But what is the thread size on either end?
1/2"
Now take something like:
http://www.screwfix.com/app/sfd/cat/...12341&ts=05907
This is described as Female Iron Coupler Compression Fittings 15mm×˝"
The 15mm must relate to the internal diameter and I guess the thread
size is the same on one end as the stright coupler. But what does the
1/2" relate to? The internal diameter on the other end or the thread size?
Thread size. For some reason all the pipes have gone metric but
anything threaded is still imperial. 15mm fittings = 1/2" threads.
Go figure.
--
SJW
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