Introduction to flange types

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Introduction to flange types: Flanges are components with flanges. Flanges can be separate, known as flange plates, or they can be combined, such as the flanges at both ends of a valve, to facilitate the installation of bolts. This article introduces the materials of flanges, the types of sealing surfaces, and the types of flanges in accordance with **standards as well as standards in the chemical, petrochemical, and mechanical industries. Sinopec Forum (H+q%P+X:B8y Materials: Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes +e(s4R*C.T%C 20# A105 Q235A 12Cr1MoV Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes /_(J4~#Y1{-|+|#X 16MnR 15CrMo 18-8 321 Sinopec Forum $E:\9]6y4r;y/l 304 304L 316 316L Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes 6}$o8W1b7q6{ Types of sealing surfaces: Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes .S.s/j&g)A Flat (FF) Raised (RF) Convex (M) Concave (F) /^;z4E'~-w3i Sinopec Forum Concavo-convex (MF) Rabbet (T) Groove (G) Rabbet-groove (TG) 8l4i5a%]2c5a)w8` www.sinapec.com Ring joint surface (RJ) *C:Y;a5~8p7`1| Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes Classified according to **standards: Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes b)v!i&R!e:J!M3{7i8n Full flange Threaded flange Welded flange Necked flat weld flange 1Y v$^6]*a*W Necked socket weld flange Welded ring necked loose flange Plate type flat weld flange Welded ring plate type loose flange Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes #U%V/n*Q+X9p&L Flat weld ring plate type loose flange Flanged ring plate type loose flange Flange cover /U6~8^2M"o H,v'Z Classified according to chemical industry standards; standards and expertise related to petroleum and petrochemical processing technologies, petrochemical environmental protection, Sinopec-specific software, and lubricants are provided here 9^8n9o$z!n$D!j Full flange (IF) Threaded flange (Th) Plate type flat weld flange (PL) Wafer type welded flange (WN) Sinopec Forum 2T.)*m4U,i.j&r H Necked flat weld flange (SO) Socket weld flange (SW) Welded ring loose flange (PJ/SE) Flat weld ring loose flange (PJ/RJ) $]3t*h4U.D.J,Y Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes Lined flange cover (BL(S)) Flange cover (BL) Standards and expertise related to petroleum and petrochemical processing technologies, petrochemical environmental protection, Sinopec-specific software, and lubricants are provided here; P7@+b#B+E&h Classified according to petrochemical industry standards Sinopec Forum 8{5w D'e:e Threaded flange (PT) Welded flange (WN) Flat weld flange (SO) Socket weld flange (SW) 'd0k4U6k-X&m0q C1R7Y(y Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes Loose flange (LJ) Flange cover (not specified) Standards and expertise related to petroleum and petrochemical processing technologies, petrochemical environmental protection, Sinopec-specific software, and lubricants are provided here *A,I)O2s7r/h7A Classified according to mechanical industry standards, o)F-e#T2p3^4? j0y&n Full flange Welded flange Plate type flat weld flange Welded ring plate type loose flange Sinopec | Refining | Equipment | Lubricants | Engine Oils | **Standards | Environmental Protection | Sinopec-specific software | Oil processing | Chemical engineering processes 2D3d(g$E&N1f#T Flat weld ring plate type loose flange Flanged ring plate type loose flange Flange cover