Insulating flange components are a general term for pipe flange joints that require both sealing performance for buried steel pipelines and electrical insulation properties for anticorrosive engineering. This includes a pair of steel flanges, insulating seals between the flanges, flange fasteners and insulated fastener parts, as well as a pair of steel short pipes that have been separately welded to each flange. These insulating flange components, along with insulating joints, are products produced for the oil, chemical, and other industries. They feature a simple structure, safe use, reliable performance, and have received widespread praise from users.

Insulating flange components have been developed into a series. In case of special circumstances, they can be custom-designed and manufactured according to customer requirements. Insulating flange components are primarily used in gas transmission and distribution pipelines, as well as in equipment for gas regulation, measurement, and storage. Their main function is to provide electrical insulation and isolation between sections of the gas transmission and distribution pipelines and between equipment and pipelines, protecting them from chemical corrosion and extending the service life of the pipelines and equipment. The products comply with the standard SY/T0516-1997 "Technical Regulations for Design of Insulating Flange Components."