Item - Check Valves Check Valve Flow Design Dual Mechanism and Body Design Inline Body Material - Valves Bronze Pipe or Tube Size 1 in Connection Type MNPT x FNPT Max Temp - Valves 180 Degrees F Max Steam Pressure - Valves Not Rated Application - Valves General Purpose Length 4 1/2 in Standards Asse Listed 1024 Nsf Listed - Standard 61 Annex G