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Flange
Flange

Flange

The flange is the part connecting the shaft to the shaft, which is used for connecting the pipe ends. Flanges a...
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Flange is also called flange flange disk or flange. The flange is the part connecting the shaft to the shaft, which is used for connecting the pipe ends. Flanges are also used in the inlet and outlet of equipment for connecting between two equipment, such as the flange of reducer. Flange connection or flange joint refers to the detachable connection made by connecting flange, gasket and bolt as a group of sealing structures. Pipe flanges refer to the flanges for piping installation and the inlet and outlet flanges for equipment. Flanges are perforated and bolted to tighten the two flanges. Gasket seals between flanges. Flange is divided into threaded connection (threaded connection) flange, welding flange and clamping flange. Flanges are used in pairs, wire flange can be used for low-pressure pipelines, welding flange is used for pressure above 4 kg. Seal between two flange plates and bolt them. Different pressure flange thickness, they use different bolts. Pumps and valves, when connected to pipes, parts of these devices are also made of corresponding flange shapes, also known as flange connections. Usually in two plane periphery USES the bolt to connect at the same time to close the connection part, generally called "the flange", like the ventilation duct connection, this kind of part may be called "the flange class part". But this connection is only a part of the equipment, such as flange and pump connection, it is not good to call the pump "flange parts". Smaller, such as valves, can be called "flange parts."

Reducer flange for connecting motor to reducer and connecting reducer to other equipment.

Flange classification method

1. According to HG industry standards, the following points are divided: integral flange (IF), threaded flange (Th), plate plain welding flange (PL), plain welding flange with neck (WN), plain welding flange with neck (SO), socket welding flange (SW), plain welding ring loose-sleeve flange (PJ/SE), plain welding ring loose-sleeve flange (PJ/RJ), lining flange cover (BL(S)), flange cover (BL) [2].

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

3. According to the industry standard of machinery (JB) : integral flange, butt-welding flange, plate-welding flange, butt-welding ring plate-loosening flange, butt-welding ring plate-loosening flange, flanging ring plate-loosening flange and flange cover.

4. According to (GB) standard: integral flange, threaded flange, butt-welding flange, plain welding flange with neck, plain welding flange with neck socket, butt-welding ring, plain welding flange, butt-welding ring, butt-welding ring, flange cover.

The flange material

Carbon steel (WCB), LCB (low temperature carbon steel), LC3 (3.5% nickel steel), WC5 (1.25% 0.5% chrome molybdenum steel), WC9 chromium (2.25%), C5 (0.5% 5% chromium molybdenum), C12 (9% 1% chromium molybdenum), CA6NM (4 (12% chromium steel), CA15 (4) (12% chromium), CF8M stainless steel (316), CF8C stainless steel (347), CF8 stainless steel (304), CF3 (304 l stainless steel), CF3M (316 l stainless steel), CN7M (alloy), M35-1 (monel), N7M (hastert nickel alloy B), CW6M (hastert nickel alloy C), CY40 (inco nickel alloy), etc.