The flange profile

Flange, also called flange flange disc or flange. Flange is a shaft and s→haft connected parts, used for the connection between the pipe ends; Also us•eful in the equipment inlet and outlet flange, used£ for the connection between two equipment, such as reducer flange. Flange connection or flan&ge joint, refers to the flange, gasket and bolts are connected to each other as a group of asσsembly sealing structure of the detachable connection. Pipeline flange's refer to the flanges of piping devices and the inlet and outlet flanges of equipment₹ when used in equipment. There are holes in the flanges and bolts hold the two flanges to₩gether. Use gasket to seal between flanges. Flanges are divided into↕ thread connection (thread connection) flange, welding flange and clamping flange. Flanges ar'e used in pairs, wire connection flanges can be used for lσow pressure pipes, welding flanges can be used for more than four kilograms of pressure. Add sealiαng gasket between two flanges, and then tighten with bolt<. Flanges of different pressures have different thicknesses and£ use different bolts. Water pump and valve, in connection with t♦he pipeline, the local equipment, also made into the corresponding flange sha✔pe, also known as the flange connection. Usually in the two plane surrounding< the use of bolt connection at the same time closed connecting parts, generally known as the "fla♠nge", such as ventilation pipe connection, this kind of parts can be called "flan₩ge parts". But this connection is only a part of the πequipment, such as the connection between the flange a∏nd the pump, it is not good to call the pump "flange parts". Comparatively small,♠ such as valves, can be called "flange parts"

Classification of the flange

1, according to chemical industry (HG) standards: Solid→ flanges (IF), threaded flanges (TH), plate flat-wel>ded flanges (PL), butt-welded flanges with neck (WN), f§lat-welded flanges with neck (SO), socket welded flanges (SW), butt-welded ring loose flange s (PJ/SE), flat-welded ring loose flanges (PJ/RJ), lining flange cover (BL(S)), fl↑ange cover (BL).

2, according to the petrochemical (SH) industry st&andard: threaded flange (PT), butt welding flange (WN),≠ flat welding flange (SO), socket welding flange (SW), loose sleeve flange (LJ), flang✘e 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 plate type loose s±leeve flange, flat welding ring plate type loose sleeve flange, flanged ring plate type loosεe sleeve flange, flange cover.

4, according to the national (GB) standard: integral flange, threaded flange, bu"tt welding flange, neck flat welding flange, neck socket welding flange, butt welding ring neck loo∏se sleeve flange, plate type flat welding flange, butt weldi>ng ring plate type loose sleeve flange, flange cover.

The connection form

Flange connection is the two pipes, pipe fittings or equiδpment, first fixed on a flange, between the two flanges, plus♠ flange gasket, with bolts fastened together, complete the connection. Sβome pipe fittings and equipment have their own flange, also belongs to the flange coπnnection. Flange connection is an important connection way in pip‌eline construction. Flanged connection is easy to use and can withstand greater pressure. ₹In industrial piping, in the home, the pipe diameter αis small, and the pressure is low, and the flange connection is invisible. If yoΩu are in a boiler room or production site, there are flanged pipes and equipment everyw↔here.

According to the connection mode, the type of flange connection can be divided into:

Plate type plain welding flanges, plain welding flanges with neck, bu↔tt welding flanges with neck, socket welding flanges, threaded flanges, flange covers, ‍butt welding ring loose flanges with neck, butt weldi≠ng ring loose flanges, ring groove flanges and flange ✔covers, large diameter flat flanges, large diameter high neck flanges, figure eig×ht blind plates, butt welding ring loose flanges, etc.