Tri-clover fittings are standard in the dairy industry.
They are sanitary and fairly easy to keep clean.
They are a PITA to connect. Especially if you have a stiff hose on one end.
You almost need three hands to connect them.
You first have to sanitize a couple of gaskets.
Then, try to hold the gasket in place when you try to get the two fittings to line up. Then hold the fittings and gasket in place while you try to find the clamp.
Try to wrap the clamp over the two fittings and gasket.
Almost always the gasket falls out from between the fittings.
Then you have to grab another gasket or re-sanitze the first one.
Hopefully the gaskets have not warped.
Finally you get the two fittings together with the gasket between and you start to tighten the clamp.
If all is good, nothing got between the gasket and the fittings, like yeast, trub, etc.
Turn on the pump.
No fluid movement. There is a bubble in the line.
Slowly loosen the clamp and try to let some fluid flow and get the bubble out.
Drop gasket and repeat.
As you could probably tell, I don't care for Tri-clover for use in a brew-pub. With 1 1/2" ID hose they can be VERY irritating to use. With 1/2" it could be better.
I always used bevel seat fittings with Teflon gaskets.
On fittings that I changed often, like in the brewhouse, I used the Snap-tite gaskets. Unfortunately the smallest bevel seat is made is 1"
Again, this is on 7 bbl or larger systems.
I am going to be putting a 10 gallon home brew system together very soon. I hope to use Cam-lock fittings.