- Valves 250 Degrees F, Max.
Temp.198 psi, Mounting Orientation Horizontal, Vertical, Seal Material Buna-N, Max. 3" Flanged Stainless Steel Wafer Check Valve Steam Pressure - Valves Not Rated, Seat Material Buna-N, Spring Material 316 Stainless Steel. Water Pressure - Valves 275 psi @ 100 Degrees F, Max.