Pipe joint

摘要

A pipe joint comprising a first tube, a second tube, a packing between the first and second tubes, and a substantially tubular joint body. The first tube has a flange at one end thereof and the second tube has a V-shaped annular projection adjacent one end thereof. The substantially tubular joint body has an annular tightening portion trapezoidal in section and coupling portions on each longitudinal side of the tightening portion. The second tube is inserted into the first tube with the packing interposed between their respective flanges. The joint body is then fitted around the first and second tubes and clamped. The tubes are thus securely connected together through the coupling between each tube and each coupling portion of the joint body. Also the flanges with the packing interposed therebetween are urged toward each other by the tightening portion of the joint body to thereby establish airtightness between the first and second tubes.