On Fri, 07 Jan 2005 03:45:04 GMT, "C.D.Damron"
wrote:

"Blueskies" wrote in message
. com...
All of them that I know of will introduce a little air when reconnected,
even the 'zero leakage' ones....

Yes, you would have to have multiple valves to be truly zero-leakage. Are
there such animals? Can somebody suggest a simpler setup than the setup I'm
thinking about? I would think that you would lose a bit of fluid while
bleeding, but avoid introducing air.

If you install the fittings so the female one points up you could fill
it with oil before connecting then join them without getting any air
into the system. My question is why do you need this.