Probably. With an insert. I say probably cause I think the fittings have to have a reasonable depth to them so depends what you’ve got.Chaps,
Can I put plastic pipe into a metal compression fitting?
Chaps,
Can I put plastic pipe into a metal compression fitting?
Probably because copper is a bit softer so might not chew up the plasticYes but use a pipe insert, make sure you're extra careful to make the cut on the pipe straight so the insert sits flush properly
I was told once that copper olives are preferred to brass ones on plastic pipe but can't remember why!
I wouldn't. I'd use a speedfit between copper and plastic.
But what do I know.
Plenty of advice seems to say it's fine.
Compression metal fittings on to plastic pipe - MyBuilder
Plastic can be attached to compression fittings without problems. Just make sure you put an insert into the end of the plastic pipe to strengthen it andwww.mybuilder.com
What insert you using ? A double seal or single ?
What do you mean by this? What Grohe fitting are you trying to put an insert in?insert doesn't go close to fitting into the Grohe fitting. Could be because it is expecting a tap connector.
The cistern connector on first glance looked like a compression fitting but I think it is a tap connector fitting (I didn't spend much brain power looking at it, I just moved onto the other job). Hep2o with a metal insert wouldn't fit inside it, which confirmed it was a tap connector fitting.What do you mean by this? What Grohe fitting are you trying to put an insert in?
Should compression fittings/olives have PTFE on them?So I tried to refit the full bore compression fitting with PTFE around the olive and some boss white on the thread. This thing is either still weeping, or I am sending myself nuts over condensation. The tissue keeps getting slightly damp!
CopperWhat olive ?
It shouldn't need it but I whacked some on as an insurance policy, as I was refitting because it was weeping.Should compression fittings/olives have PTFE on them?
I used PTFE on the olive not the thread.You don’t use PTFE on compression fittings. Use jointing compound like LS-X