Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 851-1982
Scope
This standard applies to 45°C double flange elbows of ductile cast iron pipe fittings. When used in gas pipelines, the allowable pressure can be up to 1 bar. If this type of pipe is used in gas lines exceeding 1 bar, special guidelines should be followed. If used in water pipelines, the nominal pressure listed in the table applies. By special agreement, higher nominal pressures may also be used.
CNS 851-1982 history
1982CNS 851-1982 Ductile Cast Iron Special Castings for Main Lines,Double Flanged Bends 45 (DFB-45)