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Phil Kangas[_4_] Phil Kangas[_4_] is offline
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Default Replacement sight glass


wrote in message
...
On Fri, 29 Apr 2016 12:26:20 -0700,
wrote:

On Fri, 29 Apr 2016 13:28:12 -0400, Ed Huntress
wrote:

On Fri, 29 Apr 2016 09:55:07 -0700,

wrote:

On Fri, 29 Apr 2016 07:23:55 +0100, David
Billington
wrote:

On 28/04/16 22:00, Bob Engelhardt wrote:
On 4/28/2016 11:22 AM, Ed Huntress wrote:
And jeez, Iggy, teach someone how to do a
proper job with Teflon tape.
... g

Since we're giving Iggy thread advice, let me
add this: I sometimes
have a taped joint leak. I never have a leak on
a joint where I've
used "paste" sealant. With PTFE or Teflon.

Bob
I've seen plenty of paste sealant joints leak
whether done by myself or
professional gas fitters on various pressure
systems including low
37mBar systems. They should always be checked.
Of course they should be checked, that's how I knew
every joint I made
with teflon tape on that crappy black iron pipe
leaked, and how I knew
none leaked when I remade them with the paste. Only
a fool would
assemble a joint that's supposed to be leak free
and not test it.

Eric

How many layers did you put on? As the size of the
pipe increases, you
need more layers. With 1-inch pipe, I use three
layers.

3 layers. The guy at the store selling the pipe said
that would do it.
I asked because the threads were so ****ty. They were
very sharp and
torn, like they were cut with a dull die set. I think
the sharpness
just cut through the tape. Whatever the reason the
goop is all I have
used since and I have had zero leaks since. With
brass and bronze and
stainless fittings I have never had problems using
tape, but the black
iron pipe sold around here for gas service sucks. The
threads always
look like crap.
Eric


With brass and bronze they often seal perfectly with
nothing.


I've seen tape used on compression nuts! ;)}