From the Manufacturer's Description:
A low cost, reliable, maintenance free solution to a variety of industrial spot cooling problems. Using an ordinary supply of compressed air as a power source, vortex tubes create two streams of air, one hot and one cold, with no moving parts. EXAIR Vortex Tubes are constructed of stainless steel. The wear resistance of stainless steel, as well as its resistance to corrosion and oxidation, assures that EXAIR Vortex Tubes will provide years of reliable, maintenance-free operation.
Vortex Tubes can produce:
Temperatures from -50 degrees to +260 degrees Farenheit (-46 degrees to +127 degrees Celcius)
Flow rates from 1 to 150 SCFM (28 to 4,248 SLPM)
Refrigeration from 136 Btu/hr. (34Kcal/hr) up to 10,200 Btu/hr. (2,571 Kcal/hr)
Temperatures, flows, and cooling power are adjustable over a wide range using the control valve on the hot end exhaust