Flat welded flange connections may require high tensile, compressive, torsional and shear strengths, and large flanges are the best choice. Products include stainless steel flanges, butt welding flanges, flange covers (blind flanges), small-diameter flanges, and high-pressure flanges. The connection device of the flat welding flange: the flat welding flange is the connecting device of the American standard flange of two large-diameter pipes, usually two flanges plus how many fastening screws. Low-carbon steel should have low strength. After adding a suitable amount of carbon elements, it will become strong and hard. It can be used on pipes as well as strength is strengthened. In that case, loosen the screws to rotate the pipes on both sides, and then tighten them again. Easier to disassemble and assemble pipes. The flat welding flange connection is also used on the pipeline. In that case, loosening the screw can rotate the pipeline on both sides, and then tightening it can facilitate the disassembly and assembly of the pipeline. The flange made of carbon steel is called carbon steel flange; the flat welding flange connection method is also a simpler connection method with cast iron pipes and steel pipes.
Flat Welding Flange Features
The flange blind plate can be used on the opening mouth of the inspection port. The flange connection is suitable for the connection of pipe fittings with pipe diameters from φ50-315mm. Forming a set of flanges is unique in its performance: non-rigid connection, disassembly, and tensile force. The flange connection method is generally used as a detachable connection on the low-pressure pipeline. In recent years, the production of flat welding flanges in Asia ranks first in China. Flat welding flanges include threaded (wired) flanges and welded flanges. The low-pressure small diameter has a wire flange, and the high-pressure and low-pressure large diameters use welded flanges. The thickness of the flanges and the diameter and number of connecting screws are different for different pressures. The demand for flat welding flanges is diverse, such as transportation, construction machinery, rail vehicles, and shipbuilding industries. The proportion of forgings used in the transportation industry is 67% in Japan, 49% in India, 41% in South Korea, and 40% in China. These proportions will change with the future development direction of the transportation industry in various countries.
Flat Welding Flange Features
The main default of a flat welded flange is that it cannot be guaranteed to be leak-free. This is where it is presupposed inadequate: the connection is dynamic, and cyclic loads such as thermal expansion and jerky can cause movement between the flange faces, affecting the function of the flange and thus the integrity of the flange damaged, and eventually leaked. No matter what product is possible, there is no shortage, but try to control the insufficiency of the product to less, so the company tries to improve the performance of the product and make it play a role in the production of flat welding flanges.