Other than being an oustanding valve, Balon sets itself apart from other valve manufacturers by being American made.
From the Balon website:
Balon doesn't intend to bite the hand that feeds us. We never have - and we never will. We've always been proud of our American heritage and supporting our home shore vendors has never gone out of style at Balon. Our vendors burn American fuels and provide high quality jobs for American workers who consume the energy you produce. That's why every Balon valve is manufactured here in America, from components produced by home shore companies. Every casting, ball, nut, and bolt is the product of an American worker, drawing an American salary, consuming American goods, and paying American taxes.
The following are PDF product guides: