Flanges Media corrosion
1, according to the chemical industry (HG) industry standard points: the overall flange (IF), thread flange (Th), plate flat welding flange (PL), with neck welded flange (WN), neck flat welding flange (PJ / SE), flat welding ring loose sets of flanges (PJ / RJ), lining flange cover (BL (S)), Flange cover (BL).
2, according to the petrochemical (SH) industry standard points: thread flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose flange (LJ) , Flange cover (not note).
3, according to the mechanical (JB) industry standard points: the overall flange, butt welding flange, plate flat welding flange, welded ring plate loose loose flange, flat welding ring plate loose flange, flanging ring plate loose sets Flange, Flange Cover.
4, according to the national (GB) standard points: the overall flange, threaded flange, butt welding flange, with neck flat welding flange, with neck socket welding flange, butt welding ring with loose collar flange, Welding flange, butt welding plate loose loose flange, flat welding ring plate loose sets of flanges, flanging ring plate loose sets of flanges, flange cover.
In the continuous production of modern industry in the flange by the media corrosion, erosion, temperature, pressure, vibration and other factors, will inevitably leak problems. Due to the size of the sealing surface processing error, the aging of the sealing components and improper installation and other reasons can easily lead to flange leakage. If you can not timely management of flange leakage problems, the erosion of the media will make the rapid expansion of leakage, resulting in material loss, the destruction of the production environment, leading to business downtime, resulting in huge economic losses. If it is toxic and harmful, flammable and explosive media leakage, there may be caused by poisoning, fire and other major accidents.
Flange connection is the two pipes, fittings or equipment, first fixed on a flange, between the two flanges, plus a flange pad, bolted together, completed the connection The Some pipe fittings and equipment have their own flanges, but also belong to the flange connection. Flange connection is an important way to connect pipe construction. Flange connection easy to use, able to withstand greater pressure. In industrial pipelines, flange connections are used extensively. In the family, the pipe diameter is small, and is low, can not see the flange connection. If in a boiler room or production site, full of flanged pipes and equipment.
1, according to the connection type flange connection types can be divided into: plate flat welding flange, with neck flat welding flange, with neck welded flange, socket welding flange, threaded flange, flange cover, with neck Welding ring loose flange, flat welding ring loose flange, ring groove flange and flange cover, large diameter flat flange, large diameter high neck flange, character blind plate, butt welding ring loose flange The.
