(Related to this question) but I think that may be too specific in that I already had an idea of how to solve the problem - perhaps the better way is to pose the problem and ask for the best solutions:
PROBLEM: I have a tank of fluid that has to get connected to a movable set of copper pipes/tubes. I will be connecting and disconnecting a few times per year to clean, etc.
The fluid going through the system will be for food use (maple sap turned into maple syrup)
What is the best way to allow connections to be taken on and off and keep food quality integrity and connect copper pipes together?
The temperature of the fluid will reach (potentially) 180F and I want no leaching of plastic or vinyl, etc.