| | |
|
|
|
Re: compression joints |
|---|
| message from BigWallop on 24 May 2004 |
If the pipes are going to take hot water around the system, then drain it down
as much as possible so you can install a soldered joint. Compression fittings
work themselves loose under heating and cooling situations, so for the savings
in the price of the fittings, and the safer environment it causes, it's best to
fit soldered fittings in the heating system.
|
| Elessar replied to BigWallop on 25 May 2004 |
I'd always assumed it was because the heat of soldering could damage the
rubber washer or whatever seals the gland. (Actually I'm not sure if there
*is* a rubber washer in gate valves or stopcocks).
|
| Dave Plowman replied to BigWallop on 25 May 2004 |
All the drain down cocks on my CH are end feed. I've also seen standard
stop cocks like this too.
|
| Andy Hall replied to BigWallop on 25 May 2004 |
It's a pretty unusual occurence for compression fittings on heating
systems to leak, and some are useful to facilitate removal of pieces
of the system.
However, they are not used universally for cost reasons as well.
With respect to valves, they are on show and any leaks normally become
obvious. For radiator valves, the most common leak is around the
spindle, though.
TRVs can tend to stick after a while, especially if the system has not
been maintained with inhibitor.
.andy
To email, substitute .nospam with .gl
|
|
Archived message: Re: compression joints (UK D-I-Y House Improvement)
