Butterfly Valve Wafer Style Body Material PVC Max Water Pressure 150 psi Max Vacuum 29 in Hg Pipe Size 12 in Temp Range 30 Degrees to 175 Degrees F Liner Material EPDM Disc Material Polypropylene Handle Type Gear Number of Bolt Holes 12 Bolt Circle Dia 17 in Standards NSF-61 ASTM D1784 Cell Class 12454A