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How to control Vortex Tube Temperature and Air Flow?
Vortex Tube Air flow and Temperature can be easily controlled by adjusting slotted valve which is placed in the hot air outlet. By opening the valve you can reduce the cold airflow and air temperature; by closing the same valve you can increase the cold air and temperature.
The percentage of air directed to the cold outlet of the vortex tube is called the “cold fraction”. In most Vortex Tube applications, a cold fraction of 80% produces a combination of cold flow rate and temperature drop that maximizes refrigeration. While low cold fractions (less than 50%) produce lowest temperatures, cold airflow rate is sacrificed to achieve them.
Vortex Tube installation is very easy; simply attach a thermostat in the cold air exhaust and set the temperature by adjusting the valve at the hot end. Maximum refrigeration is achieved when cold air temperature is 50°F (28°C) below compressed air temperature.
If you are not sure of your air flow and temperature requirements we recommend you to buy StreamTek Vortex Tube Small Kit or Vortex Tube Medium Kit which contains Stainless Steel Vortex Tube, ALL interchangeable generators, 1/4″ NPT Auto Drain Filter, and Cold End Muffler, which can help you to experiment with the full range of airflow’s and temperatures.