The flange is a joint between the pipe and the pipe for the connection between the pipe ends; it is also used for the flange on the inlet and outlet of the equipment for the connection between the two devices, such as the flange of the reducer. A flange connection or a flange joint refers to a detachable connection in which a flange, a gasket and a bolt are connected to each other as a combined sealing structure. Pipe flange refers to the flange used for piping in the pipeline installation. It is used on the equipment to refer to the inlet and outlet flanges of the equipment. There are holes in the flange, and the bolts make the two flanges tightly connected. The flanges are sealed with gaskets. Flange threaded connection (threaded connection) flange, welded flange and clip flange. Flanges are used in pairs. Low-pressure pipes can be used with wire-bonded flanges, and welded flanges are used for pressures above four kilograms. A gasket is placed between the two flanges and then bolted. Different flange thicknesses for different pressures use different bolts. Pumps and valves, when connected to the pipeline, the parts of these equipment are also made into the corresponding flange shape, also known as flange connection. Connection parts that are bolted at the same time around two planes are generally referred to as "flanges", such as the connection of ventilation ducts. Such parts may be referred to as "flange parts". However, this connection is only a part of the equipment, such as the connection between the flange and the water pump, it is not good to call the pump "flange parts". Smaller such as valves, etc., can be called "flange parts".

Reducer flange for the connection of the motor to the gear unit and the connection between the gear unit and other equipment.

Main Flanged type as below Weld Neck Forged Flange;Threaded Forged Flange;Lap Joint Forged Flange; Socket Weld Forged Flange;Blind Forged Flange;Slip On Forged Flange

Flange classification method

1. According to the chemical industry (HG) industry standard: integral flange (IF), threaded flange (Th), plate flat welding flange (PL), neck butt weld flange (WN), neck flat welding flange (SO), socket weld flange (SW), butt weld ring loose flange (PJ/SE), flat weld ring loose flange (PJ/RJ), lining flange cover (BL(S)), Flange cover (BL).

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

3. According to the mechanical (JB) industry standard: integral flange, butt welding flange, plate flat welding flange, butt welding ring plate loose flange, flat welding ring plate loose flange, flanged ring plate loose sleeve Flange, flange cover.

4, according to (GB) standard points: integral flange, threaded flange, butt welding flange, neck flat welding flange, neck socket welding flange, butt welding ring with neck loose flange, plate flat welding Flange, butt weld ring plate loose flange, flat welded ring plate loose flange, flanged ring plate loose flange, flange cover.