On Mon, 08 Mar 2004 11:59:33 +0000, Set Square wrote:

In an earlier contribution to this discussion,
larry wrote:

howdy

I have a 28 mm compression coupling into which I need to put a 22 mm
pipe.

I have bought a 28 to 22 mm reducer (in profile looks like a fat
bottle - with a 22 mm neck and a 28 mm body)

The question is - do I need to solder a 28 mm pipe onto the reducer
and then put the 28 mm pipe into the compression coupling - or can I
put the 28 mm "body" of the reducer straight into the compression
coupling . I'm wondering if the reducer is too weak to go into the
compression coupling ?

cheers
larry

I assume that the reducer is 28mm female one end and 22mm female the other
end - and is thus intended to join a 28mm pipe to a 22mm pipe. If this is
the case, the 28mm end will be too big to go into your compression fitting
anyway. On the other hand, if your reducer has a 28mm male end (unlikely)
you won't be able to put another 28mm pipe inside it, and the reducer will
go straight into the compression fitting.

Is the 28mm compression fitting a straight coupling (rather than an elbow or
tee)? If so, can't you get rid of it, shorten the pipe a bit, and solder
your reducer straight onto the pipe?

Most (endfeed) solder reducers are male on the larger end (28mm) and
female at the other (22mm socket).

They can go straight into a 28 mm compression joint but you may find if you
push it in fully home that the fitting has gone past the 28mm olive. In which
case you need to keep the fitting out a little before tightening.
HTH

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
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