The flange profile

Flange, also called flange flange π₹disc or flange. Flange is a s‌β♦haft and shaft connected partsλ≠&≥, used for the connection ₹✔between the pipe ends; Also u∏​'€seful in the equipment inlet an∞✘α←d outlet flange, used for the co↑¶" nnection between two equipmenλ↑t, such as reducer flange. Flan​£&↓ge connection or flange joint, re'☆∏"fers to the flange, §♥βgasket and bolts are λγφ‌connected to each other as a group of ΩΩassembly sealing structure of the de®β™tachable connection. ₹β&αPipeline flanges refer to §←πεthe flanges of pipin☆ <g devices and the inl₩₹♦et and outlet flanges of equipment whe∑£​¶n used in equipment. There are holes≠♥ ÷ in the flanges and bolts hold the two &₽flanges together. Use gasket to seal beγ♣tween flanges. Flanges are divid<≤ed into thread connection (thread con♠→σnection) flange, welding fl$γ©ange and clamping flange. Flanges are ¶↑׶used in pairs, wire co®φ∑nnection flanges can be used foγ ←r low pressure pipes, ↓±¥welding flanges can be used for mor"≠↕ e than four kilograms o©£✘γf pressure. Add sealing gasket betwee€​n two flanges, and then ti∏φ$ghten with bolt. Fla♠€nges of different pr₩ essures have different th↓$icknesses and use different bolts.♦© Water pump and valve, ♠☆¥<in connection with the pipeliσ↕≈✘ne, the local equipment, a☆'←<lso made into the corresponding fl®¶↕ange shape, also knoεπ​ wn as the flange connection.©¥ Usually in the two plaπ↑ne surrounding the use of bolt connect&β​≈ion at the same time close≈✔≤•d connecting parts, generally kβ₽≈♥nown as the "flange"☆§, such as ventilation pipe conn ×ection, this kind of parts ₩∞•can be called "flange parts". Bu±↕t this connection is εΩ↓₹only a part of the equipme★‌nt, such as the conneβ₽↕ction between the flange and the pum¶βp, it is not good to call the pump₩λ≤π "flange parts". Compa‌♣↕★ratively small, such <↓as valves, can be called "flange ™¥α∏parts"

Classification of the flange

1, according to chemic↕™βαal industry (HG) standards: Solid flang₩α☆es (IF), threaded flanges (TH), p​>∞→late flat-welded fla ₹nges (PL), butt-weld↕ε&ed flanges with neck (π<WN), flat-welded flangβΩ₹<es with neck (SO), socket we∏ ↕lded flanges (SW), butt-weldeש♥d ring loose flanges (PJ/SE), flat©π'-welded ring loose flanges (PJ/×≥™RJ), lining flange cover £β←♠(BL(S)), flange cover (BL).

2, according to the petroch<♠©emical (SH) industry standard: thread™♦ed flange (PT), butt welding ≤☆flange (WN), flat welding f←πlange (SO), socket weldin♥&♠g flange (SW), loose sleeve fla‍€​nge (LJ), flange cover (not table ​✔↓note).

3, according to the mechanical (JB) ✔'industry standards: ∏"↔integral flange, butt÷☆ welding flange, plate type flat ₩∞± welding flange, butt welding ring plat↑×♦↓e type loose sleeve flange, flat ↑‌ββwelding ring plate type loose sε®©leeve flange, flanged rλ↑>ing plate type loose sleeve flange, flφ÷ange cover.

4, according to the nationa≈≠<αl (GB) standard: integral flλ•σange, threaded flange, butt welding f£✔♣lange, neck flat welding flange, ne£≤>¶ck socket welding flange, but'✔επt welding ring neck loose sleeve flang‌→e, plate type flat welding fla‌>™σnge, butt welding ring plate type¶δ loose sleeve flange, flange cover.

The connection form

Flange connection is the ₽δtwo pipes, pipe fitti₹≠ngs or equipment, first fixed on a fla  σ₽nge, between the two fl↑βγ✔anges, plus flange gaske↓"σt, with bolts fastened together, com​¥£‍plete the connection. S₩εδome pipe fittings and equip✔★ment have their own flange, also belon∏★gs to the flange conn$₩≥'ection. Flange connection is a "n important connectio÷£♠ n way in pipeline const§∏ruction. Flanged connection is ↓₽easy to use and can withstand gr∏∏φeater pressure. In industrial piping'εδ♣, in the home, the pipe diameter is sma∞β​ll, and the pressure is low, and the♣≈ flange connection is invi‌♦®↑sible. If you are in a boiler room♦&€' or production site, thδ§≈♠ere are flanged pipes an®♦•d equipment everywhere.

According to the connection β↑₹✔mode, the type of flange connectio"¶'n can be divided into:

Plate type plain weldi≠ ®ng flanges, plain weldδ₽ing flanges with neck, butt welding f→λ∏δlanges with neck, socket welding flan∞₹ges, threaded flanges, fla∑←•nge covers, butt welding ring loose fl±®anges with neck, butt wel&&σ♣ding ring loose flan×&‌♦ges, ring groove flanges and flange co‌≤©vers, large diameter fλ™Ω$lat flanges, large diameter hiγ§≥♦gh neck flanges, figure ei<↕ght blind plates, butt welding ring loo±✔σse flanges, etc.