Insulating flange assemblies are a general term for pipeline flange joints that meet both the sealing requirements for buried steel pipelines and the electrical insulation requirements for anti-corrosion engineering. This includes a pair of steel flanges, insulating seals between the flanges, flange fasteners, insulating parts for the fasteners, and a pair of steel short pipes that have been separately welded to each flange. Insulating flange assemblies, along with insulating joints, are products produced for industries such as oil and petrochemicals. They feature simple structure, safe operation, reliable performance, and have received widespread praise from customers.

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. The insulating flange components are mainly used in gas transmission pipelines and equipment for gas regulation, metering, storage, etc. Their primary function is to provide insulation and isolation between sections of the gas transmission pipeline 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."