The flange profile

Flange, also called flange flange disc‍★ or flange. Flange is a shaft anα↑™♠d shaft connected parts, used for thσ♣e connection between the pipe¥Ω× ends; Also useful in th ÷e equipment inlet and out≠✘♦let flange, used for the connec∏∑tion between two equipmen↓€σ™t, such as reducer flange. Flan$↕αge connection or flange joi×<nt, refers to the flange, gasket and bσ πolts are connected to each othe§βφr as a group of assembly sealing struct§σβure of the detachable¥ ✘φ connection. Pipeline flaδ nges refer to the flanges★≤≈' of piping devices and ÷♥₹δthe inlet and outlet♥γΩ♠ flanges of equipment when us→×γ←ed in equipment. There are holes>✔∞  in the flanges and bolts hold t'♦∞he two flanges together. Use gaske→ δt to seal between flanges. Flanges a↕Ω¥re divided into thread con∑‍¶♥nection (thread connection)☆←π flange, welding flang★αe and clamping flang₩​e. Flanges are used in pai↔< ​rs, wire connection flβγanges can be used foε✘r low pressure pipes, wel★≠ding flanges can be used for mor ​εe than four kilograms γ∑‌of pressure. Add sealing gasket beα≥•tween two flanges, and then ₩↑Ωtighten with bolt. Flanges&δ of different pressures have dif☆∞< ferent thicknesses anπ∑↕d use different bolts. Water pump and v'¶alve, in connection with the p≈↕Ωipeline, the local equipment, <÷also made into the corresponding flan₹Ω↓ge shape, also known∏₹ as the flange connection. UsΩ φually in the two plane surrounding ® the use of bolt connection at theΩ• same time closed connectin ® g parts, generally known as the "fla¶ nge", such as ventilation pi×↔↔✔pe connection, this kinε₽©←d of parts can be called "flang‌‌σe parts". But this connection is on←₩≈ly a part of the equipment, such as tα&♠he connection between the flangeφ€‍ and the pump, it is not ♥ good to call the pump "flange part>×s". Comparatively sm♠γall, such as valves, can be called δ♥♠"flange parts"

Classification of th∞φ♠♦e flange

1, according to chemical industry (HG) ♠∑₩standards: Solid flanges (IF), threadeσ₩d flanges (TH), plate flat-€≥welded flanges (PL), butt-welded ☆∑ ∞flanges with neck (WN),™ ♥↕ flat-welded flanges with neck (SO$€↓), socket welded flanges (S♥☆W), butt-welded ring lo≤≠δose flanges (PJ/SE),♠•₩ flat-welded ring loose flanges (P​γ‍J/RJ), lining flange→₹φ♥ cover (BL(S)), flange cover (BL).

2, according to the petroche✘↔≠εmical (SH) industry standard:♦&£← threaded flange (PT), butt w₽'÷elding flange (WN), flat weldi☆♣Ωng flange (SO), socket we÷βlding flange (SW), l↔δoose sleeve flange (LJ), flange cover♠¥ (not table note).

3, according to the mechanical ©≤✘(JB) industry standards: int₩α egral flange, butt welding flange☆←, plate type flat welding flange, buttσ¥ welding ring plate t∞↕λ ype loose sleeve flange, flat weldi ' ®ng ring plate type loose™₹✔ sleeve flange, flanged ring <←≠plate type loose sleeve flange∞Ωπ, flange cover.

4, according to the nδ→"λational (GB) standard: integral flang₽Ωπe, threaded flange, butt welding flang§ ₹•e, neck flat welding flange, ne&§≥γck socket welding flange, buλγ∏£tt welding ring neck ♠₹loose sleeve flange, plate≈€→ type flat welding flε↓♣ange, butt welding r÷‌× ing plate type loose s♣✔leeve flange, flange cover.

The connection form

Flange connection is the two pipes, pipφ​e fittings or equipm®€ent, first fixed on a flange, betw≤₽≈γeen the two flanges, ≥≥ plus flange gasket, with boltγδ$s fastened together, complete ¥ the connection. Some pipe fittings a'∏nd equipment have th∞&eir own flange, also belongs to the₩÷≥↑ flange connection. Flang♣✔♣≈e connection is an im±€∑σportant connection way in pipeline cons∞≤truction. Flanged connection is eas♣✘≤∞y to use and can withstand greater p₽₩•>ressure. In industrial piping, in t™δ♠☆he home, the pipe diameter i£↑€φs small, and the pressγγure is low, and the ®€flange connection is invisibl<↑e. If you are in a boiler room™γ& or production site,∞$" there are flanged pipes and equipment σ✘" everywhere.

According to the connection mod™×e, the type of flange ₽σ"☆connection can be divideφ∑d into:

Plate type plain welding flanges,  ‌πplain welding flanges with neck, b¥•ε≤utt welding flanges w>∞ith neck, socket weldin"∑g flanges, threaded flanges, flange c✘ overs, butt welding ring loα★♠©ose flanges with neck, b≠≠utt welding ring loose flang↕∑← es, ring groove flanσ♣↔ges and flange covers, large dia‍ε≤γmeter flat flanges, large diameter high‍α neck flanges, figure eight $Ω₹©blind plates, butt welding ring loos ♣e flanges, etc.