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ANSI ASME B16.36 Blind Flanges

ANSI ASME B16.36 Blind Flanges

The formal name for a blind disk is called a flange cover, and some are also called a blind flange or pipe plug.It is a flange with no hole in the middle, used to block the pipe opening.The function is the same as that of the head and cap, except that the blind seal is a removable sealing device and the seal of the head is not ready to be opened again.Sealing surface types are more, there are plane, convex surface, concave surface, tenon groove surface and ring joint surface.Materials are carbon steel, stainless steel, alloy steel, copper, aluminum, PVC and PPR, etc.

Product Details

Flanges are widely used as sealing and fastening connectors in aerospace, aviation, petroleum, chemical and other fields of large containers.Although the problem of machining capacity is not considered, for large diameter steel pipe flanges, due to its size is too large, only due to transportation reasons, it is impossible to complete the processing of large diameter steel pipe flanges, it must be split processing.In general, large diameter steel pipe flanges are always machined into several arcs.First, the blank is forged into square billets, then cold bent into arcs, after annealing de-stress heat treatment, formed into a full circle, processed in the vertical car to the designed shape and size, and finally transported to the construction site, and then several arcs are welded into a complete flange and welded with the pressure vessel.

For some large pressure vessels used on connected to the head of the flange, to ensure the flatness of flange sealing surface and the machining accuracy, taking the flange processing technology of the finish machining flange ontology, after the flange welded together with the head, should also again on large vertical lathe for flange sealing surface finishing.

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