Butterfly Valve Wafer Style Body Material Polypropylene Max Water Pressure 150 psi Pipe Size 12 in Temp Range 32 Degrees to 250 Degrees F Liner Material Nitrile Disc Material Glass Filled Polypropylene Handle Type Gear Number of Bolt Holes 12 Bolt Circle Dia 17 in Lug Dia 1 in Standards ISO 5211 ASTM D4101 Cell Class 85580