Summary
Inoxidable Steel Pipe Welding Sanitary systems are an important part of many food processing operations. When designed, fabricated and installed cor-rectly, they require minimal attention and help to maintain product quality and integrity. Awareness of the great variety of fittings, materials, type and sizes of components available will help during the selection and installation of any sanitary piping system.
Guide to comparison of grit finish and Ra | ||
(micro-inch) measurements. | ||
Grit | Ra (Range, micro-inch) | |
150 | 30-35 | |
180 | 20-25 | |
240 | 15-20 | |
320 | 9-11 | |
Finish number and description for sanitary tubing. | ||||||||||||
1 | Industrial (mill finish) | |||||||||||
3 | Sanitary (ID polished to #150 grit or 32 Ra, OD mill finish) | |||||||||||
5 | Industrial (ID mill finish, OD polish to #150 grit or 32 Ra) | |||||||||||
7 | Sanitary (ID and OD polished to #150 grit or 32 Ra) | |||||||||||
Specifications of sanitary tubing. | ||||||||||
OD | gage | wall | ID | Volume | Dry weight | flow capacity | ||||
thickness | (gal/100 ft) | (lbs/100 ft) | (gpm) @ 5 fps | |||||||
1.5" | 16 | 0.065 | 1.37 | 7.66 | 100.9 | 23 | ||||
2" | 16 | 0.065 | 1.87 | 14.27 | 136.1 | 43 | ||||
2.5" | 16 | 0.065 | 2.37 | 22.92 | 171.2 | 69 | ||||
3" | 16 | 0.065 | 2.87 | 33.6 | 206.4 | 101 | ||||
4" | 14 | 0.083 | 3.83 | 59.97 | 351.8 | 180 | ||||
6" | 12 | 0.109 | 5.78 | 136.39 | 694.7 | 409 | ||||
8" | 12 | 0.109 | 7.78 | 247.07 | 930.6 | 741 | ||||
