Vortex Tubes

PRODUCT OVERVIEW

The Nex Flow™ Stainless Steel vortex tube uses a brass generator as a standard item rather than cheap plastic for longer lifespan and for applications in high temperature environments. With virtually no moving parts, the  vortex tube takes compressed air and converts it to cold air at one end and hot air at the other.

Temperature as low as minus 50° F (minus 46° C) can be achieved at the cold end and up to 260° F (127° C) at the hot end.

Nex Flow Vortex tubes are available in three basic sizes and in several packaged versions.

Frigid-X™ Adjustable Spot Cooler

The Frigid-X™ Adjustable Spot Cooler is a low cost and maintenance free Adjustable Spot Cooler system which utilizes a vortex tube to produce cold air at one end.

industrial spot cooling

Frigid-X™ Mini Spot Cooler

The Nex Flow™ Mini Spot Cooler is designed for small parts and produces a stream of 15 to 20 degree F (minus 9.5 to 7 degree C) of cold air to prevent heat buildup depending on inlet air temperature.

Frigid-X™ Box Cooler

For cooling small enclosures for laboratory use, environmental chambers and any application where an enclosure needs cooling

APPLICATIONS

  • Cool electronic and electrical control
  • Cool machine operations/tooling
  • Cool CCTV cameras
  • Set hot melt adhesives
  • Cool soldered parts
  • Cool gas samples
  • Cool heat seals
  • Cooling environmental chambers
  • ADVANTAGES

  • No moving parts, reliable, maintenance free
  • No coolant
  • Compact and lightweight
  • Low cost application
  • Maintenance free units
  • Instant cold air in environmental chambers
  • No spark or explosion hazard
  • Interchangeable generators
  • VIDEOS


    How The Vortex Tube Work :

    Compressed air enters at point (A). Inside the vortex tube, the compressed air is made to spin using a "generator". It travels in one direction along the small (hot end) tube and then back inside itself in the reverse direction creating one stream of air (B) and the second stream of air (C) in the opposite direction. The outside stream of air gets hot and exhausts at point (D). The center column of air gets cold and exists at point (E). Temperatures and capacities can vary by adjusting the hot end plug at (D) and by using different "generators".

    TEMPERATURE

    Adjusting the slotted valve at the hot air outlet sets the flow rate and temperature at the cold end. The more air let out at the hot end reduces the cold air flowing and the cold air temperature at the cold end. Close the valve at the hot end and you increase the cold air flow at the cold end as well as the air temperature at the cold end. The percentage of total input air to the vortex tubes that is directed to the cold end is the "cold fraction". A cold fraction of 60% to 80% produces the optimum refrigeration. See the chart below which indicates the temperature "rise" at the hot end and temperature "drop" at the cold end of a vortex tubes at various input pressures and "cold Fraction" setting.

    Most industrial applications, such as electrical control panel cooling, parts cooling, tool cooling require maximum refrigeration and utilize the Frigid-X™ 50000H series. Applications which require extreme cold temperatures such as lab sample cooling, circuit board testing, would utilize the Frigid-X™50000C series. However, mufflers are available for both the cold and hot ends if required.

    PERFORMANCE

    Model #
    SCFM @100 PSIG inlet
    (SLPM @ 6.9 BAR inlet)
    Btu/hr. at 100 PSIG
    (Watts at 6.9 BAR)
    Size
    50002H
    2
    (57)
    145
    (42)
    small
    50004H
    4
    (142)
    290
    (85)
    small
    50008H
    8
    (226)
    580
    (170)
    small
    50010H
    10
    (283)
    730
    (214)
    medium
    50015H
    15
    (425)
    1100
    (322)
    medium
    50025H
    25
    (708)
    1800
    (527)
    medium
    50030H
    30
    (850)
    2100
    (615)
    medium
    50040H
    40
    (1133)
    2900
    (849)
    medium
    50050H 50
    (1416)
    3700
    (1084)
    large
    50075H 75
    (2124)
    5400
    (1583)
    large
    50100H 100
    (2832)
    7100
    (2081)
    large
    50150H
    150
    (4248)
    10800
    (3165)
    large

     

    Model #
    SCFM @100 PSIG inlet
    (SLPM @ 6.9 BAR inlet)
    For Cold Temperature
    Size
    50002C
    2
    (57)
    --
    small
    50004C
    4
    (142)
    --
    small
    50008C
    8
    (226)
    --
    small
    50010C
    10
    (283)
    --
    medium
    50015C
    15
    (425)
    --
    medium
    50025C
    25
    (708)
    --
    medium
    50030C
    30
    (850)
    --
    medium
    50040C
    40
    (1133)
    --
    medium
    50050C

    50
    (1416)

    --
    large
    50075C

    75
    (2124)

    --
    large
    50100C

    100
    (2832)

    --
    large
    50150C

    150
    (4248)

    --
    large

     

    Approximate temperature drops (and rises) from inlet air temperature produced by a vortex tube set at various cold fractions. Assume constant inlet pressure and temperature.

     

     

    Temperature drop of cold air,
    °F (°C) in blue
    Temperature rise of hot air,
    °F (°C) in red
    Pressure Supply
    Cold Fraction %
    PSIG (BAR)
    20
    30
    40
    50
    60
    70
    80
    20 (1.4)
    62 (34)
    60 (33)
    56 (31)
    51 (28)
    44 (24)
    36 (20)
    28 (16)
    15 (8)
    25 (14)
    36 (20)
    50 (28)
    64 (26)
    83 (46)
    107 (59)
    40 (2.8)
    88 (48)
    85 (46)
    80 (42)
    73 (39)
    63 (34)
    52 (28)
    38 (20)
    21 (11)
    35 (18)
    52 (28)
    71 (38)
    92 (50)
    117 (62)
    147 (80)
    60 (4.1)
    104 (57)
    100 (55)
    93 (51)
    84 (46)
    73 (40)
    60 (33)
    46 (25)
    24 (14)
    40 (22)
    59 (33)
    80 (44)
    104 (57)
    132 (73)
    166 (92)
    80 (5.5)
    115 (63)
    110 (62)
    102 (56)
    92 (51)
    80 (45)
    66 (36)
    50 (28)
    25 (14)
    43 (24)
    63 (35)
    86 (47)
    113 (63)
    143 (80)
    180 (100)
    100 (6.9)
    123 (68)
    118 (65)
    110 (61)
    100 (55)
    86 (48)
    71 (39)
    54 (30)
    26 (14)
    45 (25)
    67 (37)
    90 (50)
    119 (66)
    151 (84)
    191 (106)
    120 (8.4)
    129 (72)
    124 (69)
    116 (64)
    104 (58)
    91 (50)
    74 (41)
    55 (31)
    26 (14)
    46 (26)
    69 (38)
    94 (52)
    123 (68)
    156 (86)
    195 (108)

    DIMENSIONS