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天津对虾养殖场室内管道工程采用美国进口材料。其中管道活接头多采用如下图所示连接件。连接处橡胶圈断面为梯型。紧拧管螺帽,橡胶圈被压缩而与伸入接头内的管
The indoor pipe project of the Tianjin shrimp farm uses imported materials from the United States. Among them, pipe joints are mostly made of the connectors shown in the figure below. The section of the rubber ring at the connection is a ladder type. Tightly screw the tube nut, the rubber ring is compressed and the tube protrudes into the joint