Application: GOST 12820-80 FLANGE tells you that flange joints are a kind of components that are extremely commonly used in engineering design and involve a wide range of areas. GOST 12820-80 FLANGE tells you that it is an indispensable part for piping design, pipe fittings and valves.

GOST 12820-80 FLANGE tells you that flange joints are also necessary components in equipment and equipment parts (such as manholes, sight glass level gauges, etc.). In addition, other professions such as industrial furnaces, thermal engineering, water supply and drainage, heating and ventilation, automatic control, etc., also often use flange joints.
Standard: GOST 12820-80 FLANGE tell you that & GOST 33259-2015, Size: DN10-DN1200, Pressure class: PN6, PN10, PN16, PN25, Carbon steel: CT20, Stainless steel: 12X18H10T, 10X17H13M2T.
Anti-rust treatment of carbon steel GOST 12820-80 FLANGE: Anti-rust oil, electric galvanized, hot-dip galvanized.
The above information is the GOST 12820-80 FLANGE manufacturer's introduction and analysis of the flange joint, hope it helps you.