To provide an expansion joint for duct used in a channel of an exhaust gas duct, facilitating replacement work of a cylindrical membrane body of the expansion joint.
The structure of the expansion joint for duct comprises: an inner cylindrical flange 11a and an outer cylindrical flange 12a provided facing each other on the outer surface of each of an inner cylindrical duct 11 and an outer cylindrical duct 12; the cylindrical membrane body 13 mounted between the inner cylindrical flange 11a and the outer cylindrical flange 12a; the cylindrical membrane body 13 having expansion/contraction flexibility covering the outer surface of the inner cylindrical duct 11 and the outer cylindrical duct 12; and the cylindrical membrane body 13 cut open in one place in the peripheral direction and attachably/detachably joined by Velcro(R) 20.
MAYAHARA HIDEO
AOKI FUMIO
YAKUSHIJI NAOKI
TSUDA MICHITO
RIX CORP