Flange (Flange), also known as flange flanges or flange. GB / T9115-2010 flanges are connected to each other between the tube and pipe parts for connection between the pipe ends; equipment import and export is also useful in the flange for connection between the two devices, such as deceleration machine flange. Flange connection or flange joint, is defined by flanges, gaskets and bolts of the three connected to each other as a group combinations detachable connection seal structure. Pipe flange means conduit means for piping flange, with import and export flange on equipment means equipment. There are holes on the flange, so that the two flange bolts tightly connected. Between flange sealing gasket. Threaded flange points (threaded connection) flanges, welded flanges and clip flange. Flanges are used in pairs, you can use low-pressure pipe thread flange, four kilograms more than the use of a pressure welding flanges. Between the two flange gaskets, then bolted. Different flange thickness at different pressures, they use different bolts. Pumps and valves, and pipe connections at local these facilities and equipment, also made of a shape corresponding to the flange, also known as the flange connection. GB / T9115-2010 any use of the surrounding bolted in two planes simultaneously closed parts, generally known as the "flange", such as ventilation pipe connections, this type of parts can be called "flange parts." GB / T9115-2010 But this connection is a local device, such as flanges and pump connection, bad water pump called "flange parts." Relatively small, such as valves, etc., can be called "flange parts." Gongyi Yu Hang Pipeline Equipment Factory produces all kinds of flanges, the main production Flange Standard GB / T9115-2010. Flanges in the pipeline industry uses is relatively wide, whether as expansion joints, rubber joints, devices connected, etc. the need to use the flange, and is now a standard flange is endless, there are national standard, American Standard, Japanese targets, European standard, etc., on a lot on our domestic standards, and countries are constantly introduced to the latest standards. Gongyi Yu Hang pipeline plant production GB / T9115-2010 flange standard is currently the most common standard. But there are too many users and there is no such standard, aerospace piping plant can provide you with the most complete flanges.