CHAPTER VII.

PIPE AND FITTINGS.

Hose Inlets 100

Pipe Friction 107

Determination of Proper Size Pipe 107

Determination of Number of Sweepers to be Operated 113

Determination of Number of Risers to be Installed 115

Size of Risers 115

Illustration of Effect of Long Lines of Piping 120

Vacuum cleaning systems · 第 7 / 18 章