Welded Flanges

Flat weld flanges are mainly used for the connection of pipeline systems, and the pipe is inserted into the inner ring of the flange through fillet welds for welding, which is suitable for working conditions with low pressure levels and small vibration and temperature fluctuations. Its core role and purpose are as follows: Core role· Connecting pipes: Connecting the ends of pipes through bolts and flange holes to form a sealing structure 12· ‌ Enhanced Tightness: Secure the tube with the flange through fillet welds to prevent leakage 23 Specific Uses 00000 1. Low-pressure and normal temperature pipelines: suitable for pipeline systems in chemical, petroleum, municipal and other fields with a pressure ≤ of 2.5MPa, such as boiler pressure vessels, water supply and drainage, etc 3400002. Structural characteristics: · Flat welded flange with neck (SO): Enhanced pressure-bearing capacity through the neck, with a wider range of pressure (PN≤2.5MPa), often used in high-risk scenarios 35· ‌ Plate Flat Welded Flange (PL): Simple structure, low cost, but weak rigidity, disabling high-risk scenarios 3500003. Installation and Maintenance :· Easy to install, welding can be completed by simply correcting the perpendicularity of the sealing surface 34· During maintenance, attention should be paid to the quality of the weld to avoid high temperature and high pressure or frequent temperature fluctuation environments 4. Applicable scenario restrictions· Pressure level limit: Only suitable for PN≤2.5MPa working conditions, easy to leak in high temperature, high pressure or repeated bending environment 34· ‌ Material and structure: mostly made of ordinary materials such as carbon steel plates, without neck design, and cannot be directly connected with butt welded pipe fittings. ‌