Steel flange is a disc-shaped pipe fitting used to connect pipes, valves, pumps and other pressure vessels by bolt assembly, with sealing gaskets installed between two flange faces to prevent liquid or gas leakage.

We supply multiple flange types including weld neck flange, slip on flange, blind flange, threaded flange and plate flat flange, manufactured from carbon steel and stainless steel raw materials. Each product undergoes cutting, forging, turning, drilling and anti-rust surface treatment. Our flanges feature flat smooth sealing surfaces, precise bolt hole positioning, stable pressure resistance and excellent tightness.

Application

Steel flanges are key connecting components widely used for pipe assembly across various industries. In petrochemical and chemical sectors, they link pipeline sections, reactors, heat exchangers and storage tanks to facilitate safe fluid transmission under corrosive conditions. For water supply, sewage treatment and desalination projects, flanges connect water pipes, pump bodies and valve fittings to ensure leak-free operation. They are also essential for power plant boiler pipelines, wind energy equipment, marine ship piping and natural gas transportation systems. Besides, stainless steel flanges are adopted in food processing and pharmaceutical production lines to meet sanitary anti-rust standards, while carbon steel flanges serve structural piping for construction, machinery and heating ventilation systems.