Table 1: Size table of reducing tube.

Ser. numberExternal diameter of shellWall thickness of shellExternal diameter of finished pipeWall thickness of finished pipeNumber of variable standsNumber of total stands

1152.54.2542.23.561824
2152.510.257010.251218
3152.57.75139.77.721216
4152.5673.035.511212
5152.59.75114.3101016
6152.525121251012
7152.56139.76.21010