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How Does a Tubing Pump Work?
pump head animationThe pump consists of only 2 parts, the rotor and the housing. The tubing is loaded between the rotor and the housing where it is squeezed (occluded).

The rollers of the rotor move across the tubing pushing the fluid or gas.  The tubing behind the rollers recovers it shape, creates a vacuum and draws fluid in behind it.

A "pillow" of fluid is formed between the rollers. This volume is specific to the pump design and tubing size. Flow rate is determined by the speed of the pump and the volume of the pillow.

Why Use Tubing Pumps?
Contamination-Free Pumping - The fluid only contacts the inside of the tubing (USDA and FDA listed for food handling) to ensure contamination-free pumping.  No pistons, diaphragms, or valves contact the fluid stream.
Easy to Clean - Simply run sanitizing solution through the pump and flush with water - DONE!
Self Priming - Units don't need to be primed.  Just turn on the pump and the fluid will be drawn into the pump, with a suction lift of up to 28 ft.
Anti-Siphoning - Two rollers are always squeezing the tubing closed so you don't lose prime when the pump is off
Easy Maintenance  - The only wear item is the tubing, and that can be changed in a matter of minutes.  No lengthy down times to disassemble a pump to replace a broken piston or cracked diaphragm.  There is only one moving part, with no seals to leak, or valves to clog or wear.
How to Determine Vitamin Delivery Rate for Fluid Milk Fortificaton
The U.S. Food and Drug Administration's Center for Food Safety and Applied Nutrition advises that milk fortified with vitamins A & D should be within an acceptable range based on an estimate of what Good Manufacturing Practices could be expected to maintain over time.

By these Federal regulations, all fluid milk products, when fortified with vitamins A & D, must be as follows:
  • 100 - 150 % of label claim or:
  • Whole milk must be fortified to 400 IU of vitamin D per quart (not to exceed 600 IU per quart).
  • Skim and low fat milk must be fortified to 400 IU of vitamin D per quart (not to exceed 600 IU per quart), and 2,000 IU of vitamin A per quart (not to exceed 3000 IU per quart)
For further information please see CFR 131.110                            

So how do we determine the correct fortification/dosage rate for your milk line?

You will need the following information:
  • Determine the concentration rate (IU/mL) or the number of quarts that each mL of vitamins will fortify. (from the manufacturer specifications assay)
  • Determine your process lines flow rate in gallons/hour

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