Metal seated check valves – Cast Iron, Stainless steel or Different Materials Posted on by psi Metal seated check valves Metal seated check valves – 802 Metal seated check valves – 802L Metal seated check valves – 802T Metal seated check valves – 802Z Metal seated check valves – 812 Metal seated check valves – 812X Metal seated check valves – 812XB Metal seated check valves – 812XL Metal seated check valves – 812XS Metal seated check valves – 812XT