There are many kinds of flanges, lots of different things.
Flanges are short for flanges, usually referring to a few fixed holes in the perimeter of a plate like a plate that are used to connect other parts. The flange is used in pairs. There is a wide range of mechanical applications, so the appearance is also bizarre, as long as it is called a flannel or an abbreviation flange. Flanges are most common in pipeline engineering, where flanges are mainly used for piping connections.
According to the national (GB) norm: integral flange, threaded flange, butt welding flange, with flat welding neck flange, socket welding neck flange, butt welding band neck loose flange, plate, flat welding flange, butt welding plate loose flange rings, flat welding ring plate loose flange, flange ring plate loose flange, flange cover.
According to the machine (JB) industry norm: integral flange, butt welding flange, plate flat welding flange, butt welding plate loose flange rings, flat welding ring plate loose flange, flange ring plate flange, flange cover.
According to the petrochemical industry norm (SH) : threaded flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose flange (LJ), flange cover (not table).
According to the chemical industry (HG) norm: integral flange (IF), threaded flange (Th), plate flat welding flange (PL), with butt welding neck flange (WN), with flat welding neck flange, socket welding flange (SO) (SW), the butt welding ring loose flange (PJ/SE), flat welding ring loose flange (PJ/RJ), lining flange cover (BL (S)), flange cover (BL).
