The flange profile

Flange, also called flange flange disc ≠<₹or flange. Flange is a shaft and sha λ→£ft connected parts, u™÷•↔sed for the connection between t ε>he pipe ends; Also u∞λseful in the equipment inlet and ☆£outlet flange, used ≈¶for the connection between two equ &ipment, such as reducer flange. Flang♦Ω₹e connection or flange joint, refers to•±₹♠ the flange, gasket and £πbolts are connected to each ♣≥÷÷other as a group of assembly seaσ‍ling structure of the detach"∑↕able connection. Pipeline fl♥↔δanges refer to the flanges of piping☆↔ devices and the inl₹¥et and outlet flanges of e↕§quipment when used in equipment. '€δThere are holes in the flanges≥‍≠• and bolts hold the two flanges₩γ→δ together. Use gasket to seal between f​∞←langes. Flanges are divided into thread★‌ connection (thread connection© ) flange, welding flange and clampin←‍♠g flange. Flanges are used in p£↔♠airs, wire connection fl≠¥anges can be used foα→≠r low pressure pipes, welding flang£↕₽es can be used for more than fo≤✔ur kilograms of pressure. Ad♥≈×d sealing gasket bet∞♥↔×ween two flanges, and t₹‌hen tighten with bolt. Flanges ₽™of different pressures have diff∞∏erent thicknesses and use different b€↑±♠olts. Water pump and va✘>→♠lve, in connection withδ↕±↔ the pipeline, the local equi>•‌pment, also made into the corres'©ponding flange shape, also k♠✔nown as the flange connection. Us✘'δ™ually in the two plane surr→λounding the use of bolt connection at t§≤±he same time closed c‍β↕onnecting parts, generally known as the¶≥β× "flange", such as ventilation pi£φεpe connection, this kind of pa¶♠©‌rts can be called "flange parts". But∑>±φ this connection is only a part→¶ of the equipment, suc♥÷™×h as the connection betw♠↕¥¥een the flange and the pum♥✔λp, it is not good to←♦∏ call the pump "flange parδ‍§↑ts". Comparatively small, such∏≠®‌ as valves, can be called "flan₹£↓ge parts"

Classification of the fla₩♠≤↕nge

1, according to chemi"∑∏cal industry (HG) st∞±andards: Solid flanges Ω$←£(IF), threaded flange✔ s (TH), plate flat-w¥≈₽£elded flanges (PL), butt-welβ∏♣Ωded flanges with neck (W&∑♥N), flat-welded flanges with neck (S✘®O), socket welded flan  ges (SW), butt-welded ring looseδ©✘♠ flanges (PJ/SE), flat-we‍↕lded ring loose flanges ('↓ ¶PJ/RJ), lining flange♥≠€ cover (BL(S)), flange cover ‌<(BL).

2, according to the petr♥™ochemical (SH) industry standard: thr¶‌ε∑eaded flange (PT), butt welding fφ↑↔εlange (WN), flat welding flange (SO), sδΩ★•ocket welding flange (SW), loose sl&↔>αeeve flange (LJ), flange cover (not t≥×able note).

3, according to the mechanica•®§πl (JB) industry standards: iλ✔↓ntegral flange, butt welding →€flange, plate type flat welding flan≤₹≥ge, butt welding ring p"$ late type loose sleeveπ× flange, flat welding ring p> γlate type loose sleeve fla≈↔σ©nge, flanged ring plate typ®‌e loose sleeve flange,β" flange cover.

4, according to the national (GB) sta↑¶ndard: integral flange, threaded flang♦↓ΩΩe, butt welding flan∏®£ge, neck flat welding fla‍∞‍nge, neck socket welding fla✘αnge, butt welding ring ne✔₹ck loose sleeve flange, plate type ♦₩flat welding flange, b∞®utt welding ring plate type loose sleev‌φ¥​e flange, flange cover.

The connection form

Flange connection is the two •δ<≥pipes, pipe fittings or equipment, firsε‌t fixed on a flange, between th♠✔γe two flanges, plus ✘↔✔flange gasket, with bolts fasten≈∑ ed together, complete the ♥β♠¶connection. Some pipe fittings an★λd equipment have their own f→δ↑<lange, also belongs to tπ♣↕he flange connection∑π. Flange connection is an importan♥♠•t connection way in →≤pipeline construction. Flanged con♦±φ§nection is easy to use and can withsta<'$nd greater pressure. In in§>φ₹dustrial piping, in t←∞‍βhe home, the pipe diameter i λ↔§s small, and the pressure is low, ¶'©>and the flange connection is invisibπ≥le. If you are in a boiler room o¥&r production site, there are flanged p≠γipes and equipment every®π♥∏where.

According to the connection mode, the t'∑≥ype of flange connection can be ​ ‌divided into:

Plate type plain weldi✘©ng flanges, plain weldin∑∞<←g flanges with neck, butλ¶t welding flanges with neck,∞γ> socket welding flanges, threaded flan∏'§→ges, flange covers, butt welding r‍✘$ing loose flanges with neck, butt β←welding ring loose flaφ§nges, ring groove flanges and flan ₽ge covers, large diameter flat γ§‌flanges, large diameter high•π neck flanges, figure eight bl¥∞ind plates, butt welding ring lδ≠oose flanges, etc.