Dave Plowman (News) wrote:
In article ,
Lobster wrote:
Dave Plowman (News) wrote:
In article . com,
wrote:
i am trying to fit a 8mm microbore to a radiator valve i have the
reducer (Brass ) and it slides on and off the end of the micro bore
pipe even when tighten. how do i fix this so it doesn't slide off
Unless you've missed out the olive, it's not 8mm.

(but you don't need an olive if you have a reducer??)

If it clamps onto pipe how would it work without?

Cos it's a kind of 'self-olive'... assuming this is the kind of thing:
http://www.screwfix.com/app/sfd/cat/pro.jsp?cId=100122&ts=46954&id=23297
When you tighten them up you hear a slight crack as they snap into two
inside the fitting (at the point where there's a deep groove, near the
close end of the pic), and the two bits (I think) then mate together as
you continue tightening the nut. Certainly the small bit gets
compressed down like an olive.

I fitted several of these last week, but haven't dismantled any to
investigate exactly how they work - and that's a good thing as it means
they all sealed fine!

David