Item - Check Valves Check Valve Flow Design Single Mechanism and Body Design Inline Spring Body Material - Valves Bronze Pipe or Tube Size 1 in Connection Type Press x Press Cracking Pressure 0.5 psi Mounting Orientation Horizontal Vertical Seal Material EPDM Max Temp - Valves 200 Degrees F Min Temp - Valves 0 Degrees F Max Water Pressure - Valves 200 psi @ 200 Degrees F Max Steam Pressure - Valves Not Rated Spring Material Stainless Steel Full Flow - Valves No