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Twelve Foot Diameter 304 Stainless Steel Thick Wall Duct Expansion Joint

A twelve foot diameter 304 stainless steel thick wall duct expansion joint produced by Piping Technology & Products, Inc. is shown supported and braced ready for shipment.

Special equipment had rolled the knuckles from ¼” material which is then circumferentially welded. This results in an expansion joint with the minimum stresses possibly exerted, and , at the high point of the convolution, its most vulnerable area.