Zawory zwrotne metal-metal
- 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