purging lines while brazing?

Posted by digitalmaster on June 17, 2007, 7:41 pm

I was taught to purge copper lines with argon or nitrogen while brazing.For
leibert units,med gas and such.
I was talking to a residential installer and he acted as if he never heard
of doing so..Do most residential installers braze up copper lines without
atmosphere control?

Posted by daytona° on June 17, 2007, 8:04 pm

sometimes who do not know do that
but you should know if you do it...it is better and it shows

>I was taught to purge copper lines with argon or nitrogen while brazing.For
>leibert units,med gas and such.
> I was talking to a residential installer and he acted as if he never heard
> of doing so..Do most residential installers braze up copper lines without
> atmosphere control?
>

Posted by on June 18, 2007, 12:33 am

> I was taught to purge copper lines with argon or nitrogen while

brazing.For

> leibert units,med gas and such.
> I was talking to a residential installer and he acted as if he never heard
> of doing so..Do most residential installers braze up copper lines without
> atmosphere control?

Most? Yes

Is it correct not too? No

So why don't they do it? Cost

Posted by Noon-Air on June 18, 2007, 8:05 am

>> I was taught to purge copper lines with argon or nitrogen while

> brazing.For

>> leibert units,med gas and such.
>> I was talking to a residential installer and he acted as if he never
>> heard
>> of doing so..Do most residential installers braze up copper lines without
>> atmosphere control?

> Most? Yes
> Is it correct not too? No
> So why don't they do it? Cost

and lazyness

Posted by Zephyr on June 18, 2007, 4:06 pm

Time

--
Zyp

> >> I was taught to purge copper lines with argon or nitrogen while

> > brazing.For

> >> leibert units,med gas and such.
> >> I was talking to a residential installer and he acted as if he never
> >> heard
> >> of doing so..Do most residential installers braze up copper lines

without

> >> atmosphere control?

> > Most? Yes
> > Is it correct not too? No
> > So why don't they do it? Cost

> and lazyness

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