Originally Posted by bottlebomber
You just need a 5-start thread. Depending on the pitch you could easily get .5-.75 of travel with one revolution.
I'm in the middle of redoing my entire brewery, right now. But after that is complete, I am going to pursue it with a friend of mine. He is a semi-retired machinist. (The guy literally built custom parts for the observatories down here in Tucson.)
I thing that by taking the end cap off, and run a cleaning brush through the valve, would speed up the cleaning process. One more proverbial paper cut eliminated.