"Blueskies" wrote in message
om...
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.


line-----shut-off/bleed valve------connector end--| |--connector
end-----shut-off/bleed valve-----line