The flange profile

Flange, also called ±€π™flange flange disc or flange. Flange £φ​is a shaft and shaft connecteα d parts, used for the con£φ♣₹nection between the pipe ends; Also £₩✔↔useful in the equipment inlet and outl π♦Ωet flange, used for the​Ω♦ connection between twλ'o equipment, such as reducer f & lange. Flange connection or flange ←±joint, refers to the flange, ga€φ•sket and bolts are connected to each o♠♠ther as a group of assembly ↕™<​sealing structure of the detacha£♣ble connection. Pipeline fla ε•$nges refer to the flanges §₹of piping devices and the inlet aε π nd outlet flanges of equipment$¶£ when used in equipment. There are •↑holes in the flanges and bolts hold £∏♣the two flanges together. U₩ se gasket to seal betwe$↕¶en flanges. Flanges are divideβ☆∑‍d into thread connection (thre≠€ad connection) flange, welding flan'λ ←ge and clamping flange. Flanges "§€☆are used in pairs, wire connection flan•♦∏ges can be used for low pressu♦ ☆re pipes, welding flanges can be usedπ€↓ for more than four kilograms of pres★©↔sure. Add sealing gasket between two fπ langes, and then tighten w →ith bolt. Flanges of different ​≥φ←pressures have different thicknesses γ∑and use different bolts. Water pu→≈mp and valve, in conne✔β♦✔ction with the pipeline, the local equ€§>↔ipment, also made inλ♠↔‍to the corresponding flang₽±↔$e shape, also known as the fla÷≥nge connection. Usuall '>₽y in the two plane surrounding the use£←‌€ of bolt connection at the same t×™≈•ime closed connecting parts, ge$π✘₽nerally known as the "flange", suc'↕ ∞h as ventilation pipe c₽₽←₽onnection, this kind of parts can be c→←<φalled "flange parts". But this ♦♦connection is only a part♦≥σ of the equipment, such as ≥ €the connection betwe££€ en the flange and the pump, it is n₽≠☆ ot good to call the pump ≤ "flange parts". Comparatively★≠ σ small, such as valves, can ₩≤α↓be called "flange parts"

Classification of the f ‍₩™lange

1, according to chemical π"industry (HG) standards: Solid fla≈"<nges (IF), threaded flange¥‌σ→s (TH), plate flat-welded flange® ₹↓s (PL), butt-welded flanges with neck (≤®©←WN), flat-welded flanges >♥with neck (SO), socket welded fl☆‍anges (SW), butt-welded ring loose±≠ flanges (PJ/SE), flat-↔£ δwelded ring loose flanges &∑ (PJ/RJ), lining flange cover  γ(BL(S)), flange cover (BL).

2, according to the petroc‌♣↓hemical (SH) industry&♥ standard: threaded flange‌£ (PT), butt welding flange (WN∞‌→>), flat welding flange (SO), ∏←δπsocket welding flange (SW), looseβσ∑ sleeve flange (LJ), flange cover ($♥♥not table note).

3, according to the mechanical (JB) φ©↕industry standards: integral flanΩ±&ge, butt welding flan↓↕•ge, plate type flat welding fla​♥nge, butt welding ring plate type ≥§♥×loose sleeve flange, flat wel₽∞ding ring plate type loose sleeve fla₩∞↕γnge, flanged ring plate type loose s♠λ€ leeve flange, flange cover.

4, according to the nation→™'™al (GB) standard: integral ​"flange, threaded fla£‍nge, butt welding flange, ↓ ÷♥neck flat welding flange, >↓☆neck socket welding flange, butt weldin¥ε ÷g ring neck loose sleeve flange,™ ¥ plate type flat welding fl±"ange, butt welding r↑☆ing plate type loose sleeve€÷ flange, flange cover.

The connection form

Flange connection is the two pip ±πδes, pipe fittings or equipment, first f®•ixed on a flange, be"∏₹tween the two flanges, plus flange'♦ gasket, with bolts fastened ε₩together, complete the connection. Some✘® pipe fittings and equipm↑≠Ωent have their own flange, also belo✔δ‌αngs to the flange connectio₩™$n. Flange connection is an important σ∑€<connection way in pipeline con₹≈struction. Flanged connectioφ≠​₽n is easy to use and can withstand gre↕∑≠ater pressure. In industrial pipin↑¶g, in the home, the pipe diameter ±≤αis small, and the pressure i ×s low, and the flange connecti•€ε on is invisible. If y©£₽ou are in a boiler room or production ‍>site, there are flanged p♠α∑ipes and equipment everywhere.

According to the connec ₽→₩tion mode, the type of↕'€ flange connection can be divided i♣‍ nto:

Plate type plain welding flanges, pla÷♣←in welding flanges with neck, butt w ↕elding flanges with neck,   ÷socket welding flanges, thr↑¥•eaded flanges, flange covers, butt weld¶Ω♦♣ing ring loose flanges with '¶neck, butt welding ring loose flδ"anges, ring groove flanges and flange ​©covers, large diameter flat flanges, ♥♣ large diameter high neck flanges, figuα¥re eight blind plates, butt w♠§δelding ring loose flanges, etc.