Insulating flange device

The invention relates to the technical field of insulation protection, and provides an insulation flange device. The invention provides an insulating flange device which comprises a pair of insulating flanges, an insulating sealing assembly and a plurality of insulating connecting assemblies, wherein the first end surfaces of the two insulating flanges are oppositely arranged; the insulating sealing assembly is arranged between the two insulating flanges; the plurality of groups of insulating connecting assemblies are annularly arranged along the second end surfaces of the insulating flanges, and are used for connecting two insulating flanges; a first through hole is formed in the center of each insulating flange; a second through hole is formed in the center of an insulating block of the insulating sealing assembly; the first through hole communicates with the second through hole; and the first end surface and the second end surface are oppositely arranged. According to the insulating flange device provided