Install and fix according to the method of mounting flange

Flange installation can generally be divided into connecting flange (bolted fixing) and welding flange. Usually in the case of low pressure or low tightness requirements, the connecting flange can be fixed through the original or later processed bolt holes with metal gaskets and bolts; in the case of high pressure or low pressure and large diameter Welded flanges can be used, and the flanges can be installed and fixed by welding.