FYI, fermentors use butterfly gate valves not ball valves...

[schematix]

I make sure to cycle my ball valves open and closed several times while water or sanitizer is flowoing through them for cleaning. I then leave them half cocked open to hopefully let the cavity dry. We'll see what effect this has whenever I get around to cleaning them.

I did the exact same thing as you, and the result was that the liquid remaining dried, and the ball valves became very difficult to actuate because there was crust right in the middle of the ball. I flush each valve both directions, opening and closing several times, but i leave the valve in the open position when done. Seems to work better.

 

[LandoLincoln]

The first time I cleaned and sanitized a three piece ball valve, I immediately jumped online and ordered butterfly valves for my conical. If I ever need ball valves for sanitary applications, I'd probably buy these: http://www.brewershardware.com/1.5-Tri-Clover-Tri-Clamp-Ball-Valve-Quick-Clean-TC15VBALLTAP.html

Looks like a great design for easy cleaning.

That is a good option and the price is pretty reasonable. Good find.

 

[soonerpike1748]

Brewers Hardware makes some great stuff. I've bought a lot of tri clamp parts from them.