Wafer Check Valve Material of Construction CPVC Size 6 In. Connection Type Flanged Length 3 In. Width 8-5/8 In. Overall Height 11-1/8 In. Max Water Pressure 150 psi @ 70 Degrees F Cracking Pressure 1 psi Max Temp 190 Degrees F Mounting Position Vertical or Horizontal Seat Material FPM Spring Material Hastelloy Seal Material FPM Flow 1000 gpm