Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Body Material - Valves PTFE Pipe or Tube Size 1/2 in Connection Type FNPT x FNPT Cracking Pressure 0.250 to 0.750 psi Max Temp - Valves 266 Degrees F Min Temp - Valves -32 Degrees F Max Steam Pressure - Valves Not Rated Spring Material PTFE Application - Valves Corrosives Length 2 1/2 in Width 1 55/64 in Overall Height 1 55/64 in