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Compression fitting lraks. PVR 01-04-2007
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Posted by PVR on January 4, 2007, 7:21 pm


I am installing compression stop valves to copper pipe. They seem to require
a high level of torque to prevent leakage. Is this normal? I cleaned the
copper with emery and then removed the debris.

Would it help if I used some PTFE tape on the copper? If not, are there any
other techniques I should use.

Peter.



Real Goods Solar, Inc.
Posted by on January 4, 2007, 8:43 pm


No tape for this, if the tubing is not round they are a bear to get
right.
And if your emery is leaving big gouges that might be your problem.
PVR wrote:
> I am installing compression stop valves to copper pipe. They seem to require
> a high level of torque to prevent leakage. Is this normal? I cleaned the
> copper with emery and then removed the debris.
>
> Would it help if I used some PTFE tape on the copper? If not, are there any
> other techniques I should use.
>
> Peter.


Posted by PVR on January 4, 2007, 9:42 pm


I'm going to shorten the pipes by removing the emoried ends of about 5/8"
then reinstall the stop valves.

Many thanks for your help.

Peter

> No tape for this, if the tubing is not round they are a bear to get
> right.
> And if your emery is leaving big gouges that might be your problem.
> PVR wrote:
>> I am installing compression stop valves to copper pipe. They seem to
>> require
>> a high level of torque to prevent leakage. Is this normal? I cleaned the
>> copper with emery and then removed the debris.
>>
>> Would it help if I used some PTFE tape on the copper? If not, are there
>> any
>> other techniques I should use.
>>
>> Peter.
>



Posted by Stormin Mormon on January 5, 2007, 10:20 pm


You can buy just the ferrules at the home cheepo. WD-40 works OK
for the penetrating oil. That should help with the lraks.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
.

> I'm going to shorten the pipes by removing the emoried ends of
about 5/8"
> then reinstall the stop valves.
>
> Many thanks for your help.
>
> Peter
>



Posted by Speedy Jim on January 4, 2007, 9:04 pm


PVR wrote:

> I am installing compression stop valves to copper pipe. They seem to require
> a high level of torque to prevent leakage. Is this normal? I cleaned the
> copper with emery and then removed the debris.
>
> Would it help if I used some PTFE tape on the copper? If not, are there any
> other techniques I should use.
>
> Peter.
>
>


Don't use tape.

However, I have found that they seal better and
are much much easier to tighten if you apply a
little Teflon paste pipe dope to the compression ring.

Don't clean the pipe; as noted, that will leave scratches.

Jim

Page 1 of 2       1 2 > last >>
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