[time-nuts] 1" 14 tpi UNS die

bg at lysator.liu.se bg at lysator.liu.se
Tue Jul 7 16:38:43 UTC 2009


Hi Chuck,

Been living in Sweden my whole life. And almost exclusivly in houses
heated by circulating hot water through radiators. I have yet to spot an
O-ring.

Where in Sweden did you see this strange system?

--

   Björn

> Hi Didier,
>
> Gas pipe, as far as I know is always tapered.
>
> In Norway, Sweden, Denmark, Italy, etc... They use "gas pipe"
> for hot water heating systems... only they use straight threads,
> with a jamb nut to squash an O-ring up against the fixture.
> The nut has a bevel that presses the O-ring into the pipe's threads,
> and affects a semi-seal.  It is a one time affair, and in my
> experience lasts about two heating seasons before it starts
> dripping.  I guess a benefit is it keeps the room humidity up in the
> winter... sigh!
>
> -Chuck Harris





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