Compared with the necked flange, the flat flange can be divided into carbon steel flat flange, stainless steel flat flange and alloy steel flat flange according to the material. The structural forms of flange include integral flange and unit flange.
Compared with the necked flange, the flat flange can be divided into carbon steel flat flange, stainless steel flat flange and alloy steel flat flange according to the material. The structural forms of flange include integral flange and unit flange. The sealing surface of the flat welding flange can be made into three types: smooth, concave and convex, and tongue and groove. Smooth flat flanges are widely used. They are mostly used when the medium conditions are relatively mild, such as low-pressure non-purified compressed air, low-pressure The advantage of circulating water is that it is relatively cheap.