The flange profile

Flange, also called flange flange disc or flange. Flange is a shaft and shaft connected parts, u¥sed for the connection between the pipe ends; Also useful in the equipment inlet and ou$tlet flange, used for the connection between two equipment, such as reducer flange. Flange conne​ction or flange joint, refers to the flange, gasket and bolts are connected to each other as a gr‌oup of assembly sealing structure of the detachable connectio∏n. Pipeline flanges refer to the flanges of piping devices and the inlet and outle•t flanges of equipment when used in equipment. There are holes in the flanges and bolts hold the t✘wo flanges together. Use gasket to seal between flanges. Flan±ges are divided into thread connection (thread connection) flange, welding flange and clamping fl÷ange. Flanges are used in pairs, wire connection flanges can be used for low‍ pressure pipes, welding flanges can be used for more than four kilograms of pressur e. Add sealing gasket between two flanges, and then tighten with bolt. Flanges of "different pressures have different thicknesses and use different bolts. Water pump and valve∞, in connection with the pipeline, the local equipment, also made into the corresponding fla≠nge shape, also known as the flange connection. Usually in the two plane s$urrounding the use of bolt connection at the same time closed connec§ting parts, generally known as the "flange", such as ventilation pipe co‍nnection, this kind of parts can be called "flange parts". ≈But this connection is only a part of the equipment, such as the connection betweeΩn the flange and 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 fla→nges (TH), plate flat-welded flanges (PL), butt-welded flanges with neck (WN), fβlat-welded flanges with neck (SO), socket welded flanges (SW), butt-wel'ded ring loose flanges (PJ/SE), flat-welded ring loose flanges (PJ/RJ), lining flange cover (B≠L(S)), flange cover (BL).

2, according to the petrochemical (SH) industry standard: threaded flange‍ (PT), butt welding flange (WN), flat welding flange (SO), sαocket welding flange (SW), loose sleeve flange (LJ), flange cover (not table note).

3, according to the mechanical (JB) industry standards: integral flange, butt weldin×g flange, plate type flat welding flange, butt welding ring plate typ₽e loose sleeve flange, flat welding ring plate type loose sleeve flange,π flanged ring plate type loose sleeve flange, flange cover.

4, according to the national (GB) standard: integral flange,≈ threaded flange, butt welding flange, neck flat welding flange, neck socket welding f↕lange, butt welding ring neck loose sleeve flange, plate type flat welding flange, buγtt welding ring plate type loose sleeve flange, flange cover.

The connection form

Flange connection is the two pipes, pipe fittings o‌r equipment, first fixed on a flange, between the two flanges, plus flange gasket,π with bolts fastened together, complete the connection. Some pipe fittings and equipment have their× own flange, also belongs to the flange connection. Flange conσnection is an important connection way in pipeline construction. Flang₩ed connection is easy to use and can withstand greater pressure. In industrial pφiping, in the home, the pipe diameter is small, an↕d the pressure is low, and the flange connection is invisi'ble. If you are in a boiler room or production site, there are flanged piλpes and equipment everywhere.

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

Plate type plain welding flanges, plain welding flanges with neck, butt weld ing flanges with neck, socket welding flanges, threaded flanges, flange cov±ers, butt welding ring loose flanges with neck, butt wel✘ding ring loose flanges, ring groove flanges and flγange covers, large diameter flat flanges, large diameter high neck ®flanges, figure eight blind plates, butt welding ring loose flanges, e↕tc.