Stainless Steel Mini Ball Valves (or miniature ball valves) are made for use in confined spaces. With a pressure rating of 800 psi (water, oil or gas) and made out of S.S. 316, this line of valves outshines the rest of the mini ball valves available on this site. The valves are available in FxF, MxF and MxM connection types, and in sizes from 1/4" to 1".