The characteristic and use of Large-caliber flange production

Large diameter flanges can be divided into: small flanges, medium flanges, large flanges according to their size. According to the type of connection, it can be divided into: plate flat welding large diameter flange flange, flat welding flange with strength, butt welding flange, socket welding flange, threaded connection large diameter flange flange, etc., here focuses on the production process and use of large flanges.
Large-caliber flange is a kind of flange, which is widely used and promoted in the machinery industry, and has been praised and favored by users. The use of large-diameter flanges is extensive, the scope of use is determined according to different characteristics, and it is mostly used in the case of relatively mild media conditions, such as low-pressure non-purified compressed air and low-pressure circulating water, and its advantage is that the price is relatively cheap. The rolling flange is suitable for steel pipe connection with nominal pressure of not more than 2.5MPa, and the sealing surface of the rolling flange can be made into three types: smooth, concave and convex and tenon groove. Smooth rolling flanges have the largest application, and the rolling flanges of the other two methods are also more common in use.Coiling flange includes many types and models, butt welded steel flange for flange and pipe counterpart welding, mainly used in welding technology, good performance of the use of characteristics and performance, its structure is reasonable, strength and stiffness is larger, can withstand high temperature and high pressure and repeated bending and temperature fluctuations, reliable sealing, nominal pressure of 0.25 ~ 2.5MPa of the coiling flange using concave and convex sealing surface. The environment for the main application of the coiled flange is suitable, and it needs to be determined according to the specific situation to ensure the specific use value and performance of the large-diameter flange and withstand high temperature and pressure.
Large coiled large-bore flanges are cut into slats with medium plates and then rolled into circles. Reworking waterlines, bolt holes, etc. This is generally a large flange, and the maximum can be 7 meters. This type of flange has a good quality guarantee. Because the raw material is a medium plate, the density is good. Materials include carbon steel, stainless steel, alloy steel and so on.