Butterfly Valves Lug Style Body Material Ductile Iron Max Water Pressure 250 psi Pipe Size 6 in Liner Material EPDM Disc Material 316 Stainless Steel Number of Bolt Holes 8 Bolt Circle Dia 9 1/2 in Lug Dia 3/4 In.-10 Standards ANSI API ASME ANSI API ASME