External Gas Pipes
Autolycus
from an external meter box, around 4m along the outside wall of a
bungalow (a couple of feet from the ground), then vertically upwards,
then through the wall. I will sleeve it where it goes through the wall,
in line with usual standards.
The existing pipe, installed by the Gas Board in 1986, is bare copper:
is this still acceptable? The wall is not in an exposed location, and
is not accessible to public or casual visitors, or vehicles. If bare
copper is no longer recommended, would covering it with something like
BES Part No 10865 be OK? I think Denso would be unacceptable visually.
I'd prefer not to use the plastic-covered stuff if there's any
alternative.
--
Kevin Poole
**Use current month and year to reply (e.g. jan...@mainbeam.co.uk)***
Ed Sirett
> I need to replace an existing run of 15mm gas pipe with 22mm. It runs
> from an external meter box, around 4m along the outside wall of a
> bungalow (a couple of feet from the ground), then vertically upwards,
> then through the wall. I will sleeve it where it goes through the wall,
> in line with usual standards.
>
> The existing pipe, installed by the Gas Board in 1986, is bare copper:
> is this still acceptable? The wall is not in an exposed location, and
> is not accessible to public or casual visitors, or vehicles. If bare
> copper is no longer recommended, would covering it with something like
> BES Part No 10865 be OK? I think Denso would be unacceptable visually.
> I'd prefer not to use the plastic-covered stuff if there's any
> alternative.
Bare copper is acceptable, you must use clips which keep the pipe away
form the wall (to prevent corrosion) and clips which have locking caps.
--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html
white...@yahoo.co.uk
> I need to replace an existing run of 15mm gas pipe with 22mm. It runs
> from an external meter box, around 4m along the outside wall of a
> bungalow (a couple of feet from the ground), then vertically upwards,
> then through the wall. I will sleeve it where it goes through the wall,
> in line with usual standards.
>
> The existing pipe, installed by the Gas Board in 1986, is bare copper:
> is this still acceptable? The wall is not in an exposed location, and
> is not accessible to public or casual visitors, or vehicles. If bare
> copper is no longer recommended, would covering it with something like
> BES Part No 10865 be OK? I think Denso would be unacceptable visually.
> I'd prefer not to use the plastic-covered stuff if there's any
> alternative.
I believe many new properties use plastic stuff that does not require
earth bonding of the meter.
> --
> Kevin Poole
> **Use current month and year to reply (e.g. jan2...@mainbeam.co.uk)***
Andrew Gabriel
"Autolycus" <aug...@mainbeam.co.uk> writes:
> I need to replace an existing run of 15mm gas pipe with 22mm. It runs
> from an external meter box, around 4m along the outside wall of a
> bungalow (a couple of feet from the ground), then vertically upwards,
> then through the wall. I will sleeve it where it goes through the wall,
> in line with usual standards.
>
> The existing pipe, installed by the Gas Board in 1986, is bare copper:
> is this still acceptable? The wall is not in an exposed location, and
> is not accessible to public or casual visitors, or vehicles. If bare
> copper is no longer recommended, would covering it with something like
> BES Part No 10865 be OK? I think Denso would be unacceptable visually.
> I'd prefer not to use the plastic-covered stuff if there's any
> alternative.
There is a problem in some areas with external copper
pipework being stolen for the scrap value of the copper.
--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]
Doctor Drivel
<white...@yahoo.co.uk> wrote in message
news:bafcbc24-65e7-45cc...@s8g2000prg.googlegroups.com...
The installation pipes, from meter onwards, cannot be plastic if exposed.
If an installation pipe goes underground then it can be plastic, but
immediately metal when emerging.
Heliotrope Smith
Regulations do not permit plastic/polythene pipe to be used in installation
pipework.( that is pipework after the meter) . You may be getting confused
with plastic coated copper or stainless steel which would still require to
be bonded near the meter.
geoff
andrew@a17.?.invalid writes
over xmas ...
for the second time in 6 months
--
geoff
John
"geoff" <ra...@kateda.org> wrote in message
news:RZOxbjwi...@ntlworld.com...
The scrotes will find it. The press reports give the impression it is like
gold as they often report the cost of damage - a confused immigrant will
interpret this as "value of pipes"
Tim Lamb
Smith <sm...@heliotrope.com> writes
>
>Regulations do not permit plastic/polythene pipe to be used in installation
>pipework.( that is pipework after the meter) . You may be getting confused
>with plastic coated copper or stainless steel which would still require to
>be bonded near the meter.
Oh dear! Maybe that explains why our plumber was sent on a two week
refresher course after CORGI inspected our installation.
The underground part of the *installation pipework* is in yellow 25mm?
bore plastic threaded through elephant trunk duct (supplied by British
Gas).
regards
>
>
--
Tim Lamb
Heliotrope Smith
"Tim Lamb" <t...@marford.demon.co.uk> wrote in message
news:VQm1qCAI...@marford.demon.co.uk...
Of course you are right.
The second that I hit the send button I knew that someone would come up with
that one.
I will put on dunces cap and sit in the corner.
Doctor Drivel
> Smith <sm...@heliotrope.com> writes
>>
>>Regulations do not permit plastic/polythene pipe to be used in
>>installation
>>pipework.( that is pipework after the meter) . You may be getting confused
>>with plastic coated copper or stainless steel which would still require to
>>be bonded near the meter.
>
> Oh dear! Maybe that explains why our plumber was sent on a two week
> refresher course after CORGI inspected our installation.
<<
He was?
PJ
>
> Of course you are right.
>
> The second that I hit the send button I knew that someone would come up with
> that one.
>
> I will put on dunces cap and sit in the corner.
>
>
;-)
Mark
Underground gas mains and services are plastic but the joints are fused.
mark
John Stumbles
> Regulations do not permit plastic/polythene pipe to be used in
> installation pipework.( that is pipework after the meter) . You may be
> getting confused with plastic coated copper or stainless steel which
> would still require to be bonded near the meter.
Bzzzt!
BS6891 (1998) "Installation of low pressure gas pipework of up to
28 mm (R1) in domestic premises (2nd family gas)"
says:
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
6.5.2 Polyethylene installation pipework and fittings shall only be used
for exterior installation pipework.
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
and:
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
9.2.2.1 External buried pipework shall be of
polyethylene, or factory sheathed copper or steel.
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
--
John Stumbles
The floggings will continue until morale improves
Doctor Drivel
<m...@privacy.net> wrote in message news:4F5D28E12E%brian...@lycos.co.uk...
> On 6 Jan,
> Ed Sirett <e...@makewrite.demon.co.uk> wrote:
>
>> you must use clips which keep the pipe away
>> form the wall (to prevent corrosion)
>
> which
> is flush with the wall. I can't see it getting corroded where it is.
That is outside. The pipe must not be capable of being pulled from the wall
by children. Best to paint the copper pipe to prevent corrosion.
Tim Lamb
Doctor Drivel <Min...@nospam.com> writes
>> Oh dear! Maybe that explains why our plumber was sent on a two week
>> refresher course after CORGI inspected our installation.
><<
>
>He was?
Yes. Nobody told us why.
This was back in 1995. AFAIK they did not ask for anything to be
changed.
I think, from experience, the boiler sizing is inadequate but may have
been decided on the largest wall mounted unit available at the time.
From comments in here, I now know that some copper piping was buried
directly in the floor screed (he ran out of hessian sleeving).
Pipe joints were formed by enlarging one bore to form a sliding fit and
then soldered but we do not seem to have any leaks.
regards
>
>
--
Tim Lamb
Bob Mannix
Very standard practice with a pipe flaring tool - "make your own end-feed
without having to pay for a fitting". Also only no hidden soldering facing
away from you and only one solder feed per joint. Probably better overall!
--
Bob Mannix
(anti-spam is as easy as 1-2-3 - not)
Andrew Gabriel
"Bob Mannix" <b1o...@mannix.org.uk> writes:
> "Tim Lamb" <t...@marford.demon.co.uk> wrote in message
> news:brMGEEAj...@marford.demon.co.uk...
>>
>> then soldered but we do not seem to have any leaks.
>
> Very standard practice with a pipe flaring tool - "make your own end-feed
> without having to pay for a fitting". Also only no hidden soldering facing
> away from you and only one solder feed per joint. Probably better overall!
More common in Aircon than wet plumbing systems, for some reason.
Doctor Drivel
"Andrew Gabriel" <and...@cucumber.demon.co.uk> wrote in message
news:47820c30$0$508$5a6a...@news.aaisp.net.uk...
> In article <flt091$cun$1...@south.jnrs.ja.net>,
> "Bob Mannix" <b1o...@mannix.org.uk> writes:
>> "Tim Lamb" <t...@marford.demon.co.uk> wrote in message
>> news:brMGEEAj...@marford.demon.co.uk...
>>>
>>> Pipe joints were formed by enlarging one bore to form a sliding fit and
>>> then soldered but we do not seem to have any leaks.
>>
>> Very standard practice with a pipe flaring tool - "make your own end-feed
>> without having to pay for a fitting". Also only no hidden soldering
>> facing
>> away from you and only one solder feed per joint. Probably better
>> overall!
>
> More common in Aircon than wet plumbing systems, for some reason.
because they braze it.
John Stumbles
> Very standard practice with a pipe flaring tool - "make your own
> end-feed without having to pay for a fitting". Also only no hidden
> soldering facing away from you and only one solder feed per joint.
> Probably better overall!
But possibly illegal for gas work because it's not an approved gas
fitting!
--
John Stumbles
I forgot to take my amnesia medecine again
Doctor Drivel
"John Stumbles" <john.s...@ntlworld.com> wrote in message
news:NYpgj.32524$ou3....@newsfe4-win.ntli.net...
> On Mon, 07 Jan 2008 10:52:15 +0000, Bob Mannix wrote:
>
>> Very standard practice with a pipe flaring tool - "make your own
>> end-feed without having to pay for a fitting". Also only no hidden
>> soldering facing away from you and only one solder feed per joint.
>> Probably better overall!
>
> But possibly illegal for gas work because it's not an approved gas
> fitting!
It is not actually a fitting, which joins pipes. It is one pipe soldered to
another.
Ed Sirett
> In article <4781338d$1...@mk-nntp-2.news.uk.tiscali.com>, Heliotrope
> Smith <sm...@heliotrope.com> writes
>>
>
> Oh dear! Maybe that explains why our plumber was sent on a two week
> refresher course after CORGI inspected our installation.
>
That's just short of being struck off by the sounds of it.
Ed Sirett
The swaging (sp?) tool is apt to become stuck. The inside of older pipes
is hard to clean.
Ed Sirett
> On Mon, 07 Jan 2008 10:52:15 +0000, Bob Mannix wrote:
>
>> Very standard practice with a pipe flaring tool - "make your own
>> end-feed without having to pay for a fitting". Also only no hidden
>> soldering facing away from you and only one solder feed per joint.
>> Probably better overall!
>
> But possibly illegal for gas work because it's not an approved gas
> fitting!
Looking through BS 6891 there does not seem to be an explicit prohibiton
on swaged connections but the intention of the document is that capiliary
fitting would be used.
Tim Lamb
<john.s...@ntlworld.com> writes
>On Mon, 07 Jan 2008 10:52:15 +0000, Bob Mannix wrote:
>
>> Very standard practice with a pipe flaring tool - "make your own
>> end-feed without having to pay for a fitting". Also only no hidden
>> soldering facing away from you and only one solder feed per joint.
>> Probably better overall!
>
>But possibly illegal for gas work because it's not an approved gas
>fitting!
Wet side only in this instance.
regards
>
--
Tim Lamb