Flange, simply a general term, usually refers to a disk-like metal body with several fixed holes for connecting to something else. It is so widely used in machinery that it has a strange appearance. As long as it is like a flange, it is used for connecting other things

Production standard

National standard: GB/T9112-2000(GB9113·1-2000 ~ GB9123·4-2000)

American Standard: ANSI B16.5 Class150, 300, 600, 900, 1500, 2500(WN, SO, BL, TH, LJ, SW)ANSI B16.47,ANSI B16.48

JIS 5K, 10K, 16K, 20K(PL, SO, BL, WN, TH, SW)

German standard: DIN2573, 2572, 2631, 2576, 2632, 2633, 2543, 2634, 2545(PL, SO, WN, BL, TH)

Ministry of Chemical Industry standard: HG5010-52 ~ HG5028-58, HGJ44-91 ~ HGJ65-91, HG20592-97 series, HG20615-97 series

Mechanical standard: JB81-59 ~ JB86-59, JB/T79-94 ~ JB/T86-94, JB/T74-1994 Pressure vessel standard: JB1157-82 ~ JB1160-82, JB4700-2000 ~ JB4707-2000

Ship labels: GB568-65, GB569-65, GB2503-89, GB2506-89, GB/T10745-89, GB2501-89, GB2502-89

Raw material

Flange production materials are stainless steel plate, carbon steel plate, alloy plate, aluminum plated zinc plate, stainless steel bar, stainless steel forgings, stainless steel profiles, and so on.

flange, which is called flange or flange. A part that connects pipes to each other, connected to the end of the pipe. There are holes in the flange, and the bolts make the two flanges tightly connected. The flanges are gasketed. Flanges are disk-shaped parts, most commonly used in pipeline engineering. Flanges are used in pairs. In pipeline engineering, the flange is mainly used for pipeline connection. At the end of the need to connect two pipes, each installs a flange, the low-pressure pipe can use a wire flange, the use of more than 4 kg of pressure welded flange. Put a gasket between the two flanges and fasten them with bolts.

Flanges of different pressures have different thicknesses and use different bolts.

Water pumps and valves, when connected with pipes, the local parts of this equipment are also made into the corresponding flange shape, also known as flange connection.

All in the two planes in the periphery of the use of bolt connection at the same time closed connection parts, generally called "flange", such as the connection of ventilation pipe, this kind of parts can be called "flange class parts".

A threaded flange is a kind of flange. The threaded flange joint structure is an assembly consisting of a pair of flanges, a number of bolts, nuts, and a gasket.

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