Butterfly Valves Lug Style Body Material Ductile Iron Max Water Pressure 250 psi Pipe Size 2 in Liner Material EPDM Disc Material Nickel Plated Ductile Iron Number of Bolt Holes 4 Bolt Circle Dia 4 3/4 in Lug Dia 5/8 In.-11 Standards ANSI API ASME ANSI API ASME