Flange Classification Method
Jan 23, 2023
1. According to the standard of chemical industry (HG) : Integral flange (IF), threaded flange (Th), plate flat welded flange (PL), butt welded flange with neck (WN), neck flat welded flange (SO), socket welded flange (SW), butt welded ring loose flange (PJ/SE), plain welded ring loose flange (PJ/RJ), lining flange cover (BL(S)), flange cover (BL) [2].
2, according to the petrochemical (SH) industry standard: threaded flange (PT), butt welding flange (WN), flat welding flange (SO), socket welding flange (SW), loose sleeve flange (LJ), flange cover (no note).
3, according to the mechanical (JB) industry standard: integral flange, butt welding flange, plate flat welding flange, butt welding ring plate loose sleeve flange, flat welding ring plate loose sleeve flange, flanging ring plate loose sleeve flange, flange cover.
4, according to the national (GB) standard: integral flange, threaded flange, butt welding flange, flat welding flange with neck, neck socket welding flange, butt welding ring with neck loose sleeve flange, flat welding flange, butt welding ring with loose sleeve flange, flat welding ring with loose sleeve flange, flanging ring with loose sleeve flange, flange cover.
