Is there any good reason why the solvent-weld & push-fit pipes with the same nominal diameters have different real outside diameters? (The only reason I can think of is so they can sell more pipe whenever you switch methods.)
Not 100% sure, but I think the pushfit ones are same diameter as standard copper pipe sizes, to allow some interchange with copper pipe and fittings.
The pipe size is based upon the bore, so different ODs mean different wall thickness. To me, that suggests that the thicker (at least up to
2"/50mm) solvent weld pipe is rated to a higher pressure than push-fit.Colin Bignell
Oh, that would explain it. (I guess there's no point in having the pipe rated much higher than the pressure that will pop it out of the push-fit.)
Soldering them must be interesting. ;-)
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