Standard Vortex Tube

Nex Flow™ Stainless Steel vortex tube uses a metal (brass) generator as a standard item rather than cheap plastic for longer life and for applications in high temperature environments. (competitors would charge extra for that feature.) With virtually no moving parts, a 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. Vortex tube are available in three basic sizes and in several packaged versions:

Vortex Tube Information:
Our Vortex Tube is a tool that can take normal compressed air and convert into two air streams. One stream is hot air and the other stream is cold air. The advantage of our vortex tube is that it has no moving parts , which translates into no maintenance. The cold air can be adjusted down to -50° Fahrenheit, and the hot side can be adjusted up to a temperature of 250° Fahrenheit.

Vortex Tube Advantages:
Applications of Vortex Tubes:
  • 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
  • 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

Specifications

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 (ºC) in blue
Temperature rise of hot air,
°F (ºC) 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)
Frigid-X™ Vortex Tubes /
Hilsch Tubes
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)
Frigid-X™ Vortex Tubes /
Hilsch Tubes
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)
Frigid-X™ Vortex Tubes /
Hilsch Tubes
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)
Frigid-X™ Vortex Tubes /
Hilsch Tubes
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)
Frigid-X™ Vortex Tubes /
Hilsch Tubes
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)
Frigid-X™ Vortex Tubes /
Hilsch Tubes
26 (14)
46 (26)
69 (38)
94 (52)
123 (68)
156 (86)
195 (108)

How Standard Vortex Tube Work




Compressed air enters at point (A). Inside the Vortex Tube / Hilsch Tube the compressed air is made to spin using a “generator”. It travels in one direction along the small (hot end) vortex tubes 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 centre 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” .


Applications

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

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 Nex Flow™ Frigid-X™ 50000H series. Applications which require extreme cold temperatures such as lab sample cooling, circuit board testing, would utilize the Nex Flow™ Frigid-X™50000C series. However, mufflers are available for both the cold and hot ends if required.


Dimensions

Small Vortex Tube
Medium Vortex Tube
Large Vortex Tube


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