This document provides technical data and applications for butterfly valves. It lists the nominal valve sizes from 1 to 42, flange specifications according to ANSI 150lbs and ASME B16.10 standards, and body materials of cast steel or stainless steel. Liner and disc materials include PTFE, PVDF, ETFE, polypropylene, Hastelloy C, titanium, and duplex stainless steel. Elastomer backings include silicone, Viton, and EPDM rubber.