Metal seated check valves
- Cast iron, stainless steel, bronze, brass or different materials+
- 802 - heating, industrial process
- 802L - heating, industrial applications
- 802T - heating, industrial applications
- 802Z - corrosive, high temperature
- 812 - industry, corrosives , high pressure and high temperature
- 812X - industry, chemicals , high pressure and high temperature steam service
- 812XB - industry, process liquids, steam service
- 812XL - industry, process liquids, high pressure and temperature, steam service
- 812XS - industry, process liquids, steam service
- 812XT - industrie, process liquids, steam service