Speedfit and shower pumps
"Grunff" wrote in message
...
Justin wrote:
I see so you use different inserts if using compression joints on
plastic
pipes?
Well, yes and no :-)
Each manufacturer has their own inserts. SpeedFit make plastic inserts
with an O ring on the end - so you get a double O ring seal.
That is an extra. the normal one does not have a double seal. the insert is
plastic . Give them a miss.
Hep make SS
inserts. Cuprofit make copper inserts.
The purpose of the insert is to prevent the pipe from
bending/collapsing. It doesn't really matter which you use - they all do
the same job. If using speedfit fittings, I usually use their plastic
inserts with the extra O ring. But I have (and do) use the inserts
interchangeably.
The plastic inserts have a thicker wall than the copper ones, and so
will cause a greater restriction. The stainless ones have the thinnest
walls of all. So if I were you, I'd use stainless inserts throughout,
thereby achieving minimum restriction.
--
Grunff
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