I've been sticking a vacuum-cork over a bung as a de-stinking attempt on a still and degased wine and I checked it every day and it would lose its vacuum. But getting it on tubing might work better. It's one of those things you'd have to check every couple hours at first to see whether it holds or not... I had one of those in a bottle that kept its vacuum for 6 months. The wine was still a little oxidized as it was a LOT of headspace and not much wine left and it's by no means a perfect vacuum, but it was definitely still under vacuum.
I'm currently using a handful of these to degas some wine I kind of, er, rushed to the bottle and I'm too lazy to pour them back into a carboy and let them do their thing for a while. Even despite pulling gas out of the solution they're still under a little bit of vacuum if I don't check for a couple days. Speaking of which...
"The main ingredient needed is 'time' followed closely by 'patience'." - The Bishop 2013
"Good grief! If someone wanted to murder you, all they would have to do is ship you a 55 gallon barrel of honey and watch you document working yourself to death!" - Vance G