Someone earlier mentioned sweating ball valves disassembled. The $5 generic
ball valves I see don't seem to be dis-assemble-able.
Are they? Only some makes??
----------------------------
Mr. P.V.'d
formerly Droll Troll
"DanG" wrote in message
news:1SMce.340$yV4.215@okepread03...
I wrote correctly. Yes we have cut apart and disassembled more than one
valve.

(top posted for your convenience)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Keep the whole world singing . . . .
DanG (remove the sevens)




"DeepDiver" wrote in message
...
"DanG" wrote in message
news:JqLce.334$yV4.173@okepread03...

Our plumbers have gone to working the valves in the closed
position (this assumes new piping, no water or steam present)
with a wet rag on the valve. The imperfection that is created
is in the open position and the closed position is smooth and
functional.

Hi Dan,

Are you sure about the valve orientation that's causing the leaking? What
you've described seems counter-intuitive to me.

When a ball valve is open, then the smooth, solid, uninterrupted sides of
the chromed ball are against the Teflon seal. When a ball valve is
closed, then the through-hole of the ball is pressing against the Teflon.
If the Teflon were to get hot enough to deform, then it would seem that
it would be better to have the smooth, uninterrupted sides of the ball
pressing against the Teflon, rather than the part of the ball with the
through-hole in it (which would allow for an impression of the hole in
the deformed Teflon seal).

Have you tried taking two ball valves apart (one heated with the valve
open and one heated with the valve closed) to examine the seals and see
what is causing the leakage that you've encountered?

Regards,
Michael