The flange profile

Flange, also called flange flan→β§ge disc or flange. Flange is a shaft λ≠&and shaft connected parα•∞↕ts, used for the connection b§γetween the pipe ends; Also ¶∏useful in the equipment inlet and out♠>αlet flange, used for the connect₹π♥ion between two equipmen$♦t, such as reducer flange. Flange ™↕connection or flange joint, r₹≤<₩efers to the flange, gasket an×÷♣d bolts are connected ≈‍<to each other as a group of assembly ★≤©Ωsealing structure of the deta¶γ♥≤chable connection. Pipeline∏<← flanges refer to the flanges of $ ¥piping devices and the inl≈"•et and outlet flanges↓∑β of equipment when used in equipme§♥nt. There are holes in t←→₹he flanges and bolts hold the t‌₽&wo flanges together. Use ✔♠≥αgasket to seal between flanges. Flangφ≈±¥es are divided into ↔£thread connection (thread c¶ εonnection) flange, we←πlding flange and cla♦♠mping flange. Flanges are used i>™n pairs, wire connection flan• ≠™ges can be used for low pressure pipeλ±↑∞s, welding flanges can be used for mo∑♠<re than four kilograms o™• •f pressure. Add sealing gasket be™≤tween two flanges, and then tigh< ≈₹ten with bolt. Flanges o​≈§f different pressures have different ‌₽♦thicknesses and use different bol"♠₽≤ts. Water pump and v₹¶★♣alve, in connection with≠♠£ the pipeline, the local equipme☆δnt, also made into the ¶↑corresponding flange ×✘shape, also known as the fφδ​lange connection. Usually in t •he two plane surroundiΩ®ng the use of bolt connection at the ÷​‍same time closed connecting parts ≤, generally known as the "flange", ≈ such as ventilation pipe conn✘$£ection, this kind of par<>↕ts can be called "fla♦"nge parts". But this connecti•≈•'on is only a part of the equipmeλα£nt, such as the connection between ±↕πthe flange and the pump, it is not​<"≠ good to call the pump "flγ✘ ©ange parts". Comparatively small, su₩"‌←ch as valves, can be called "f¥​φlange parts"

Classification of the  ♠∏∞flange

1, according to chemical i♥ ndustry (HG) standards: Solid flanges (&♦±$IF), threaded flanges (TH), plate fσ∞lat-welded flanges (PL), butt-$$welded flanges with neck (WN)✘ , flat-welded flanges with ne♥φ±ck (SO), socket welded flanges (SW), b®☆¶€utt-welded ring loose∑᧮ flanges (PJ/SE), flat-wel∞<<ded ring loose flanges (PJ/RJ←>∏), lining flange cover (BL(S)), ↑©≠‍flange cover (BL).

2, according to the petrochemical (‍®≤SH) industry standard$₹: threaded flange (PT), butt welγπ♣±ding flange (WN), flat §÷welding flange (SO), socke±♠t welding flange (SW), loose₩¥ sleeve flange (LJ), f‌"lange cover (not table note).

3, according to the mechanical (JB) π•Ωindustry standards: integral flange, bu≤€β↓tt welding flange, plate type flat weΩ →lding flange, butt weld±♣&♠ing ring plate type loose sleeve flang∑Ω✘e, flat welding ring p©©©≥late type loose sleeve¶¶​‌ flange, flanged ring pl♣&ate type loose sleeve flange,"φ₹¶ flange cover.

4, according to the national (GB) standΩ®φard: integral flange, threaded flange÷←&®, butt welding flange, neck flat w ↑∑¥elding flange, neck socket we'÷☆₽lding flange, butt weldi"☆₽ng ring neck loose sleeve flang<≤♣e, plate type flat w∏ elding flange, butt welding '±ring plate type loose sleeve flang‌®←e, flange cover.

The connection form

Flange connection is the£×©​ two pipes, pipe fit↑÷tings or equipment, first fixed on €★'♦a flange, between the two flangλ®>€es, plus flange gasket, with bolts fasφ↑tened together, complete the connec™®tion. Some pipe fitt¶∞€σings and equipment have their ownΩγ flange, also belongs∏♣≠ to the flange connectiλ∑on. Flange connection is aφ£↓n important connection way in pipeliε§→×ne construction. Flanged conne♣≥±✘ction is easy to use and can withst∏​€≥and greater pressure. In industrial pi<≤ping, in the home, the pipe diametγ↕≥♣er is small, and the pressure is ← ∞≈low, and the flange connection is >≤±invisible. If you are in a b$∑oiler room or product∏₹€ion site, there are flan♦♥ged pipes and equipment everywhere.

According to the connectio$§λn mode, the type of flange c☆∞'§onnection can be divided into:

Plate type plain welding‍>™ flanges, plain welding ©≈σβflanges with neck, butt welding flange÷§‌ s with neck, socket welding flangeπ→​s, threaded flanges, fla₽$​®nge covers, butt welding ring ↕ ₽loose flanges with nec ®k, butt welding ring loos® e flanges, ring groove flanges and fl≠☆£ange covers, large diameter  ↑flat flanges, large diameter high α¥$♥neck flanges, figure e→σ♣ight blind plates, butt welding r&§≠ing loose flanges, etc.