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9
9-4
Tubing operating life test were done at 600 RPM, with 20°C water,
0 PSI, back pressure until the tubing breaks. Average tubing life
hours are shown. However, tubing life varies considerably
depending on tubing formulation, tubing back pressure, and fluid
pumped. Tubing should be inspected periodically for wear.
Table 9-4. Average Tubing Life
Tubing Wall Tubing Wall Tubing Tubing Average
Thickness Thickness Inner Diameter Inner Diameter Material Tubing Life
(in.) (mm) (in.) (mm) (Hours)
1
⁄16 1. 5
1
⁄16 1.5 Viton 10
1
⁄16 1. 5
1
⁄8 3.0 Viton 25
1
⁄16 1. 5
3
⁄16 4.5 Viton 25
1
⁄16 1. 5
1
⁄4 6.0 Viton 25
1
⁄16 1. 5
5
⁄16 8.0 Viton 10
1
⁄16 1. 5
1
⁄16 1.5 Tygon 60
1
⁄16 1. 5
1
⁄8 3.0 Tygon 60
1
⁄16 1. 5
3
⁄16 4.5 Tygon 30
1
⁄16 1. 5
1
⁄4 6.0 Tygon 30
1
⁄16 1. 5
5
⁄16 8.0 Tygon 30
1
⁄16 1. 5
1
⁄16 1.5 Silicone 60
1
⁄16 1. 5
1
⁄8 3.0 Silicone 60
1
⁄16 1. 5
3
⁄16 4.5 Silicone 60
1
⁄16 1. 5
1
⁄4 6.0 Silicone 50
1
⁄16 1. 5
5
⁄16 8.0 Silicone 40
1
⁄16 1. 5
1
⁄16 1.5 Santoprene 100
1
⁄16 1. 5
1
⁄8 3.0 Santoprene 100
1
⁄16 1. 5
3
⁄16 4.5 Santoprene 100
1
⁄16 1. 5
1
⁄4 6.0 Santoprene 75
NOTE: Poor tubing life results were obtained for
5
⁄16" (8.0mm) inner
diameter Santoprene tubing. This particular tubing should not be
used with the FPU-500 Pump.