Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob connection
joint, should I use gas tape on both the threaded ends of the right-angle
pipe. Thanks for advice.

On Feb 19, 11:43*am, "john bently" wrote:
Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob connection
joint, should I use gas tape on both the threaded ends of the right-angle
pipe. * * Thanks for advice.

What is a hob?

hr(bob) wrote:
On Feb 19, 11:43 am, "john bently" wrote:
Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and
one end into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm
longer than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob
connection joint, should I use gas tape on both the threaded ends of
the right-angle pipe. Thanks for advice.

What is a hob?

uk-ese for kitchen stove

On Feb 19, 12:43*pm, "john bently" wrote:
Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob connection
joint, should I use gas tape on both the threaded ends of the right-angle
pipe. * * Thanks for advice.

Sounds like an elbow I have. The long side probably has a tapered
diameter and the other side has a constant diameter. If so the tapered
side screws into the black pipe and the other connects to the hob.
Picture would help?

Jimmie

"hr(bob) " wrote in message
...
On Feb 19, 11:43 am, "john bently"
wrote:
Just replacing the kitchen gas hob for a new one. It comes with
a
right-angled pipe (an elbow), one end of which goes into the
hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is
about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob
or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob
connection
joint, should I use gas tape on both the threaded ends of the
right-angle
pipe. Thanks for advice.

Your messing with gas not knowing what you are doing probably
justifies the rules of gas fitting only being done by qualified
engineers. Do your family a favour pick up the phone and call a
"Gas safe" gas fitter.

Mike

On Feb 19, 12:43*pm, "john bently" wrote:
Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob connection
joint, should I use gas tape on both the threaded ends of the right-angle
pipe. * * Thanks for advice.

You probably ought to check the instructions, they might say. The end
that goes into the stove probably is not tapered thread if it has a
washer that sits under it. In that case you would not use tape. Tape
is only for "pipe" thread. Pipe thread tapers and achieves a seal by
the threads themselves. On that you do use tape or dope. If you
really have soft copper pipe coming in for the supply you may need an
adapter between the elbow and the copper so you can use a compression
fitting on the copper. If that's the case carry the elbow down to a
friendly local hardware shop and ask for help :-) Here in the states
we usually have black iron pipe for supply at it does have tapered
thread but I know you guys and the canadians use copper sometimes.
Nothing wrong with copper but your stove might be geared towards the
way we do it.

In the US, where I am. Natural gas is a low enough
presure, that the folks I work with coat the
external (male) threads with a bit of Rectorseal
#5. We do not use teflon tape on gas threads. Risk
of some of the tape flaking off, and get into the
gas valve, and create more problems.

Can't comment on the long or short ends of the
elbow. Try both -- see which works better.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"john bently" wrote in
message
...
Just replacing the kitchen gas hob for a new one.
It comes with a
right-angled pipe (an elbow), one end of which
goes into the hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled
pipe is about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes
into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go
into the hob connection
joint, should I use gas tape on both the threaded
ends of the right-angle
pipe. Thanks for advice.

On Feb 19, 4:46*pm, JIMMIE wrote:
On Feb 19, 12:43*pm, "john bently" wrote:

Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and one end
into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm longer
than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob connection
joint, should I use gas tape on both the threaded ends of the right-angle
pipe. * * Thanks for advice.

Sounds like an elbow I have. The long side probably has a tapered
diameter and the other side has a constant diameter. If so the tapered
side screws into the black pipe and the other connects to the *hob.
Picture would help?

Jimmie

Ooops, left out connects to hob via flexible pipe. Anyway it sounds
like the long side of the fitting is for iron pipe and the other for
flexible copper tubing via a compression fitting or a flare fitting.
This may mean the elbow was either intended to connect the supply to
the flexible copper pipe or the hob to the flexible copper pipe.

hope this helps

Jimmie

On 2/19/2010 2:48 PM Stormin Mormon spake thus:

In the US, where I am. Natural gas is a low enough
presure, that the folks I work with coat the
external (male) threads with a bit of Rectorseal
#5. We do not use teflon tape on gas threads.

Who is this "we" of whom you speak?

Honestly, every plumber I know uses teflon tape. I know there's other
stuff available, and I'm sure it works, but were does this stuff come
from all of a sudden that "nobody used teflon tape"?

Hell, use old-fashioned pipe dope for that matter. It all works.

And another thing: what's the big deal about the "correct" tape for gas
(the yellow stuff)? Again, maybe it's better, but everywhere I go I see
white tape on joints in gas piping. And none of it leaks.

Sheesh.


--
You were wrong, and I'm man enough to admit it.

- a Usenet "apology"

On Feb 19, 9:24*pm, David Nebenzahl wrote:
On 2/19/2010 2:48 PM Stormin Mormon spake thus:

In the US, where I am. Natural gas is a low enough
presure, that the folks I work with coat the
external (male) threads with a bit of Rectorseal
#5. We do not use teflon tape on gas threads.

Who is this "we" of whom you speak?

Honestly, every plumber I know uses teflon tape. I know there's other
stuff available, and I'm sure it works, but were does this stuff come
from all of a sudden that "nobody used teflon tape"?

Hell, use old-fashioned pipe dope for that matter. It all works.

And another thing: what's the big deal about the "correct" tape for gas
(the yellow stuff)? Again, maybe it's better, but everywhere I go I see
white tape on joints in gas piping. And none of it leaks.

Sheesh.

--
You were wrong, and I'm man enough to admit it.

- a Usenet "apology"

I tried Rectorseal for the first time this week replacing my brittle
PVC greenhouse sprinkler system with galvanized and PEX. No leaks
first time and easier to apply than tape.

Jimmie

On Feb 19, 6:11*pm, "chaniarts"
wrote:
hr(bob) wrote:
On Feb 19, 11:43 am, "john bently" wrote:
Just replacing the kitchen gas hob for a new one. It comes with a
right-angled pipe (an elbow), one end of which goes into the hob and
one end into the copper supply pipe.

The *threaded* part of one end of the right-angled pipe is about 4mm
longer than the threaded part of the other end.

Would it be the *longer* threaded part that goes into the hob or the
*shorter* threaded part?

Since I was supplied with a rubber washer to go into the hob
connection joint, should I use gas tape on both the threaded ends of
the right-angle pipe. Thanks for advice.

What is a hob?

uk-ese for kitchen stove- Hide quoted text -

- Show quoted text -

And that's how the language changes!
'Hob' also common, in North America, where wood stoves were used (and
even after that when some such stoves were converted to dual fuel)
wood/oil.
Also common expression where a kettle of hot water was kept 'on the
hob'. And as in saying "Come on in out of the cold and have a cup of
tea/coffee; the kettle is on the hob".
The term was also occasionally applied to a swinging bracket on some
stoves on which the kettle was placed after it had boiled, to keep it
hot or simmering.
Younger generations and/or the less well read, brought up with
electricity probably unlikely to be familiar with the term 'hob'.
Wife's grandmother who died at 101 in the 1970s would refer to her
wood stove as having four 'hobs'; these were the round metal sections/
covers in the heavy cast iron metal stove top that one would lift to
expose bottom of cooking pot to direct heat. She was a smart woman but
if one used a term such as 'data' or 'cyber' she wouldn't be be
familiar.

On 20/02/2010 02:24, David Nebenzahl wrote:
On 2/19/2010 2:48 PM Stormin Mormon spake thus:

In the US, where I am. Natural gas is a low enough presure, that the
folks I work with coat the external (male) threads with a bit of
Rectorseal #5. We do not use teflon tape on gas threads.

Who is this "we" of whom you speak?

Honestly, every plumber I know uses teflon tape. I know there's other
stuff available, and I'm sure it works, but were does this stuff come
from all of a sudden that "nobody used teflon tape"?

Hell, use old-fashioned pipe dope for that matter. It all works.

And another thing: what's the big deal about the "correct" tape for gas
(the yellow stuff)? Again, maybe it's better, but everywhere I go I see
white tape on joints in gas piping. And none of it leaks.

Sheesh.


The yellow tape (for gas fittings) is thicker. The white is for water.
The reason is, that the white tape can suffer from osmosis, in other
words, the gas can slowly permeate through the tape.
It is only a very,very tiny leakage and probably almost undetectable
by sniffing, but that's the reason.

Bod

On Feb 19, 8:24*pm, David Nebenzahl wrote:

snip

Honestly, every plumber I know uses teflon tape.

If a plumber showed up at one of my projects with Teflon tape in his
kit, he'd be shown the door. Same thing for a finish carpenter with
Plastic Wood in his toolbox. Sign of a competent journeyman is using
the best, not 'quickie' materials.

I know there's other
stuff available, and I'm sure it works, but were does this stuff come
from all of a sudden that "nobody used teflon tape"?

It comes from plugged gas valves, faucet strainers with bits of Teflon
tape stuck in the screens, and in other trades, failed engines with
bits of Teflon tape stuck in oil passages.

Hell, use old-fashioned pipe dope for that matter. It all works.

But the Teflon filled variety is much better.

And another thing: what's the big deal about the "correct" tape for gas
(the yellow stuff)? Again, maybe it's better, but everywhere I go I see
white tape on joints in gas piping. And none of it leaks.

If you had a detector similar to those used for Freon, you'd find
that, indeed, it does leak, although not to a critical extent. Local
gas company here apparently not using it, so it may not be universal.

Joe

What is a hob?
uk-ese for kitchen stove- Hide quoted text -

Actually a hob is just the 'hot plates' so usually just that with the
oven & grill etc in a separate unit

On Feb 20, 5:08*pm, Chewbacca wrote:
What is a hob?
uk-ese for kitchen stove- Hide quoted text -

Actually a hob is just the 'hot plates' so usually just that with the
oven & grill etc in a separate unit

Yep, my grandmother was Irish, she grew up in England though moved to
US in 1919. I remember her having a wood stove an electric stove and
her gas hob.

Jimmie

David Nebenzahl wrote in
.com:

On 2/19/2010 2:48 PM Stormin Mormon spake thus:

In the US, where I am. Natural gas is a low enough
presure, that the folks I work with coat the
external (male) threads with a bit of Rectorseal
#5. We do not use teflon tape on gas threads.

Who is this "we" of whom you speak?

Honestly, every plumber I know uses teflon tape. I know there's other
stuff available, and I'm sure it works, but were does this stuff come
from all of a sudden that "nobody used teflon tape"?

Hell, use old-fashioned pipe dope for that matter. It all works.

And another thing: what's the big deal about the "correct" tape for
gas (the yellow stuff)? Again, maybe it's better, but everywhere I go
I see white tape on joints in gas piping. And none of it leaks.

Not sure if you are refering to states side or not but here in Britain
the "yellow" tape refers to the colour of reel. The gas tape is white
but much thicker than the water MDFE tape and the regulations permit
only a single wrap of tape on the gas threads whilst between 10 and 20
turns is not uncommon on water threads.

"Old fashioned (gas) pipe dope" is widely used but may not be used in
conjunction with tape.


--- news://freenews.netfront.net/ - complaints: ---

First, I use teflon tape in some instances.

Second, I'm told that the white teflon based pipe
dope dries out and gets crumbly. Much better to
use Rectorseal, or the blue stuff.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
..


"Joe" wrote in message
...
On Feb 19, 8:24 pm, David Nebenzahl
wrote:

snip

Honestly, every plumber I know uses teflon tape.

If a plumber showed up at one of my projects with
Teflon tape in his
kit, he'd be shown the door. Same thing for a
finish carpenter with
Plastic Wood in his toolbox. Sign of a competent
journeyman is using
the best, not 'quickie' materials.

I know there's other
stuff available, and I'm sure it works, but were
does this stuff come
from all of a sudden that "nobody used teflon
tape"?

It comes from plugged gas valves, faucet strainers
with bits of Teflon
tape stuck in the screens, and in other trades,
failed engines with
bits of Teflon tape stuck in oil passages.

Hell, use old-fashioned pipe dope for that
matter. It all works.

But the Teflon filled variety is much better.

And another thing: what's the big deal about the
"correct" tape for gas
(the yellow stuff)? Again, maybe it's better,
but everywhere I go I see
white tape on joints in gas piping. And none of
it leaks.

If you had a detector similar to those used for
Freon, you'd find
that, indeed, it does leak, although not to a
critical extent. Local
gas company here apparently not using it, so it
may not be universal.

Joe