Threaded flange connection method
Threaded flange connection method; and even some alloy raw material flange is not easy to weld or welding function is not good, also can choose thread connection method. The most common specifications for threaded flanges are from DN15 to DN100. It has the advantages of convenient on-site installation, simple repair and no need of welding. However, it can only be used in the application of low and medium pressure pipes, such as air conditioning water system, household tap water system; in the pipeline temperature changes dramatically or the temperature is higher than 20 degrees Celsius, lower than – 45 degrees Celsius, or flammable / explosive and high and extremely hazardous occasions. When flanges are installed on some equipment in peacetime, if the orientation of the flanges is not accurate or the orientation of the flanges is not consistent, we usually adopt the method of forcing the flanges to fix them to the exact orientation by external force, and then weld them through electric welding.
