The flange profile

Flange, also called flange flange→¶π disc or flange. Flang₩↔e is a shaft and shaft±★ connected parts, used fo↓∞r the connection between the pipe end↓‌s; Also useful in the equipme‌↔nt inlet and outlet flange÷β, used for the connectδ←↕ion between two equipme←¥nt, such as reducer flange®". Flange connection or flange join↑♠$∞t, refers to the flange,₹×¥ gasket and bolts are con ™nected to each other as a ÷'∑group of assembly sealing structu∞₩φre of the detachable con✔>nection. Pipeline flange✔∞ s refer to the flanges of piping de↔β&vices and the inlet and outlet®γ flanges of equipment €→♣when used in equipment.φφ There are holes in th₹§$e flanges and bolts hold©÷ the two flanges together.•✘≠ Use gasket to seal between flange÷γ↑εs. Flanges are divided into t$∑σhread connection (thread con≈←™↔nection) flange, welding flange andβδ& clamping flange. Flanges are used in'±↑ pairs, wire connection flanges can be★≥ used for low pressure pipes, w☆↑elding flanges can be used for more÷↓" than four kilograms of pre σ€ssure. Add sealing gasket between two ∏≠flanges, and then tighten ππ¶with bolt. Flanges of different pr♥Ω↓ essures have different≤₩> thicknesses and use dif"✔ferent bolts. Water pump and valve,  ®‌in connection with the pipλ>eline, the local equipmen•>t, also made into the corres βε©ponding flange shape, alσ↑π±so known as the flange connection. Usu<σε'ally in the two plane surrounding tα↔he use of bolt connection at the α≤φsame time closed connecting pa♠∏≠>rts, generally known π§as the "flange", such as v"Ω♠entilation pipe connection, this kind o₩↔f parts can be called "flan•♥​ge parts". But this conn♦€δection is only a par< ​↕t of the equipment, "€₩φsuch as the connection between the ↔÷flange and the pump, it is not €ε↕↕good to call the pum§¥p "flange parts". Comparat↕£">ively small, such as valves, can beλ¥‌ called "flange parts"

Classification of the f©♣'‍lange

1, according to chemical industry ‌λ→α(HG) standards: Solid flanges (IF'€δ), threaded flanges (TH), plate flat-we★¥lded flanges (PL), bu↕​tt-welded flanges with neck₽× (WN), flat-welded flanges£★ with neck (SO), socket←γ♥δ welded flanges (SW), butt-welde₩↑✘d ring loose flanges (PJ/SE), flat₩•​-welded ring loose flanges (P‌®✘J/RJ), lining flange cover (BL(S)), ✘​π☆flange cover (BL).

2, according to the petroc♣↑​hemical (SH) industry standard: thrβ≠∏eaded flange (PT), butt welding fla≤$nge (WN), flat welding flange (SO), so€♠★cket welding flange (SW), loose sleeve ¶♦δΩflange (LJ), flange cove$>r (not table note).

3, according to the mechanicaσ§l (JB) industry standards↔ ≠∑: integral flange, butt welding flangλΩπe, plate type flat we∑✘£lding flange, butt welding ring✘♣ plate type loose sleeve flange≈ , flat welding ring plate type loosε•e sleeve flange, flanged ring pla®←±£te type loose sleeveλ' flange, flange cover.

4, according to the nation±£al (GB) standard: inteπ↑×±gral flange, threaded flange, but§‍t welding flange, neck flat welding f®₽÷lange, neck socket welding flλαλange, butt welding r ↑ ∞ing neck loose sleeve flange, plate t≠✔∞ype flat welding flange, butt weldingλ£ ring plate type loose sl₹$δ&eeve flange, flange cover.

The connection form

Flange connection is the two pi★→$←pes, pipe fittings or equipment, first £↑£fixed on a flange, between •₩★∑the two flanges, plus​β♣ flange gasket, with bolts fa" stened together, complete the ÷♠connection. Some pipe fittings and λ✔"equipment have their own flan ​✘ge, also belongs to the flange connec≤≈tion. Flange connection is a≈π♦₽n important connection ♥α←←way in pipeline constructi∑®©on. Flanged connection is easy to use ±φand can withstand greater pressure. In ✘®☆industrial piping, in theφε home, the pipe diameter is±♠✘' small, and the pressure is low, a'>δ✘nd the flange connection is ​×invisible. If you are ↕¶in a boiler room or production site,☆©↓× there are flanged pipes an↕'¶d equipment everywhere.

According to the conn$✔ection mode, the type o↕≠₩f flange connection can be <↔♣∑divided into:

Plate type plain welding flangesλ ↑, plain welding flanges with neck₩λ¥‍, butt welding flanges with ©<&✘neck, socket welding flanges, threade δ₹‍d flanges, flange covers, butt weld δ₽ing ring loose flanges ₽α✔φwith neck, butt welding ring loose flan‌♥ges, ring groove flanges  ☆©and flange covers, large diameter fl εat flanges, large diameterσ§π high neck flanges, fiε ₹gure eight blind pla₽☆∞ tes, butt welding ring loose flanges,∏∑✔® etc.