Chapter 4 Tubing Information; Selecting Tubing; Tubing Life; Tubing Materials - Omega Engineering OMEGAFLEX FPU500 User Manual

4

4.1 Selecting Tubing

Select a tubing material and size that is right for your
application (the fluid and flow rate that you are pumping).
Table 9-2 in Chapter 9, shows the average flow rates for
different size tubing. Normalized flow rates (mL per
revolution) vary significantly, based on motor speed, tubing
materials, viscosity, and mechanical tolerances in pump
dimensions. Table 9-3 outlines the variances resulting from
differences in motor speed, tubing materials, and mechanical
tolerances. Table 9-5 outlines the variances due to the
difference in viscosity.
To determine the chemical compatibility of a particular
tubing material, it is recommended that you test the tubing
under actual conditions.
Tubing materials that can be used include Vinyl, Viton,
Tygon, Silicone, Santoprene, and Norprene. Up to 68
durometer tubing can be used.

4.2 Tubing Life

Over time and high speeds, flow rates will drop as the tubing
wears out. Tubing life for various materials and sizes are
shown in Table 9-4 in Chapter 9. Tubing should be
periodically inspected for wear. Either move the tubing to a
fresh section, or replace tubing entirely (refer to Chapter 5).
Tubing Information
Poor tubing life results were obtained for
inner diameter Santoprene tubing. This particular tubing
should not be used with the pump.
NOTE
5
⁄ " (8.0mm)
1 6
4-1