This is a question about gear more than brewing, per se... I'm wondering if a particular component exists...
I'm trying to find a connector suitable for my system that will allow me to disconnect my vessels simply by pulling out the tubing - so the removal of the tube triggers the closure of a valve in the connector. Without going into too much detail, the system I'm considering at the moment will essentially require two inline closing mechanisms for each vessel so I'd rather have one tap and an auto-close connector. If such a thing doesn't exist I might reconsider my approach.
I've seen a garden hose/spray gun connector that does exactly this but it's not really suitable for potable water - when you disconnect the spray gun the water flow stops even when still under pressure.
Any ideas? Cheers!