Vortex Tubes

Product Overview

Vortex tubes produce up to 6000 BTU/hr (1757 watts) of refrigeration and temperatures as low as -40 deg to solve a variety of industrial spot cooling and process cooling needs. With no moving parts, a vortex tube is highly reliable and inexpensive; and requires no electrical connection at the cooling site. Vortex tubes cool instantly, relying on compressed air spinning in the tube to separate the air into cold and hot air streams.

Vortex tubes are a compact source of refrigeration and cooling, with models ranging from 6 – 13 inches (150 – 330 mm) long and cooling capacities ranging from 100 – 6000 BTU/hour (29 – 1757 watts). Vortex tube performance is easily adjustable by changing the inlet air pressure, ratio of cool air to exhaust or by changing the generator in the tube itself. And while normally used for cooling, vortex tubes can also be used for heating applications, merely by channeling the exhaust hot air to the application.

Vortex tube technology was invented by French physicist Georges Ranque in 1930, and first developed for industrial use by Vortec in the 1960s. See how it works. Since then, vortex tubes have been applied for a wide range of cooling applications on machines, assembly lines, in processes and for testing and measurements.


  • Cools instantaneously
  • Lowest cost per unit of refrigeration of any cooling technique
  • Fully adjustable cooling, easily moved from site to site as needed
  • Fits to provide cooling in the most confined areas
  • Lowest maintenance requirements of any refrigeration technique
  • Environmentally friendly, with no refrigerants or chemicals needed
  • Easy to install, just connect compressed air and go


  • Maintenance free, with no moving parts
  • Cycle repeatability within +/- 1 deg
  • Drops compressed air inlet temperature by up to 100 deg F (55 deg C)
  • No electricity required at the cooling site
  • Cools without refrigerants, as low as -40 deg
  • Compact and lightweight, highly transportable
  • Adjustable for varying cooling needs
  • Available heating capacity using the same tube, up to 200 deg F (93 deg C)
  • Available in both aluminum (208 and 308) and stainless steel (208SS) models
  • Replacement generators available for modification of cooling or upon contamination


Model# 106-2-H 106-4-H 106-8-H 208-11-H
Material of Construction Brass/Stainless Steel Brass/Stainless Steel Brass/Stainless Steel Aluminum
Inlet, inch, NPT 1/8 1/8 1/8 1/4
Cooling Capacity (BTU/hr) 100 200 400 640
Air Consumption @ 100 psig (scfm) 2 4 8 11
Inlet, Female or Male F F F F
Model# 208-15-H 208-25-H 208-11-HSS 208-15-HSS
Material of Construction Aluminum Aluminum Stainless Steel Stainless Steel
Inlet, inch, NPT 1/4 1/4 1/4 1/4
Cooling Capacity (BTU/hr) 900 1500 640 900
Air Consumption @ 100 psig (scfm) 15 25 11 15
Inlet, Female or Male F F M M
Model# 208-25-HSS 308-35-H 328-100-H
Material of Construction Stainless Steel Aluminum Aluminum/Brass
Inlet, inch, NPT 1/4 1/4 1/2
Cooling Capacity (BTU/hr) 1500 2650 6000
Air Consumption @ 100 psig (scfm) 25 35 100
Inlet, Female or Male M F M


Product Brochures
Installation and Operating Instructions
Company Documents

Case Studies

Roboworld: Protecting Robots in Extreme Environments.

Vortec client Roboworld serves a unique niche in the industrial world—creating protective suits for the robots which handle tasks in extreme environments where humans cannot safely work. Vortec’s cooling tubes guarantee these Robosuits™ never overheat.

Click Here to Read


Vortex Tubes

Air that rotates around an axis (like a tornado) is called a vortex. A vortex tube creates cold air and hot air by forcing compressed air through a generation chamber, which spins the air at a high rate of speed (1,000,000 rpm) into a vortex. The high speed air heats up as it spins along the inner walls of the tube toward the control valve. A percentage of the hot, high speed air is permitted to exit at the valve. The remainder of the (now slower) air stream is forced to counterflow up through the center of the high speed air stream in a second vortex. The slower moving air gives up energy in the form of heat and becomes cooled as it spins up the tube. The inside counterflow vortex exits the opposite end as extremely cold air. Vortex tubes generate temperatures as much as 100 deg F (56 deg C) below the inlet air temperature. The fraction of hot air exhausted can be varied to change the outlet cold air temperature, with more exhaust resulting in a colder cold air stream (with lower flow rate), and less exhaust resulting in a warmer cold air stream (and higher flow rate).



Models: 106 & 208 Series

Models: 308
5 Micron Air Filter 701S-24A

Models: 208 Series & 308

Models: 328-50-H, 328-75-H, 328-100-H

Models: 308

Models: 328-50-H, 328-75-H
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