On Fri, 28 Oct 2011 19:14:20 +0200, G Wolmershäuser
wrote:

Am 27.10.2011 10:04, schrieb Mr Green:

Yes - I assume something like that - but I have never had the old style ones
come apart from the hose so I am surprised if that is the case.


If these parts are the same as sold in Germany, they are different now.
The old ones were made with a saw like profile in order make a tight
connection. It was almost impossible to disconnect both, joint and pipe
without heating. The new joints now have a O-ring gasket. It is easier
now to connect and to disconnect the interconnection.
Cheers
Gotthelf


Good - I bet that that is the reason - easier disconnection.

I have had difficulty myself with the old style - and have had to cut off the
tubing with a Stanley knife.