Allegro Abrasive Helmet High Pressure Cooler, Vortex Style 4000-01

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Vortex tubes are an effective, low cost solution to respiratory cooling needs. With no moving parts, a vortex tube spins compressed air to separate the air into cold and hot streams by forcing the compressed air through a generation chamber which spins the air centrifugally along the inner walls at a high rate of speed toward the control valve.

The air temperature controller adjusts the amount of air to the helmet and adjusts air temp 25 degrees F (-3.8 C) cooler than the ambient air for use in hot environments.

The respirator’s air source must be supplied at all times with clean breathable air, Grade D or better as defined by the Compressed Gas Association. (Commodity Specification G-7.1)

  • Body: Plastic
  • Fitting: 1/4 in. (.63 cm) Quick-connect (Rectus style) stainless steel
  • Belt: Nylon
  • PSI Range: 55-82 psi
  • Weight: 1.3 lbs (.58 Kg)
  • Color: Blue body with black control valve
  • Lightweight for better comfort
  • Provides continuous cool air delivery
  • No moving parts
  • Easy to adjust control valve, even with gloved hands
  • Will cool compressed air by 25 degrees F (-3.8 C)
  • Belt adjust to fit up to 50 inches (127 cm) waist
NIOSH approved to supply a continuous flow of cool compressed air to the Nova 2000 supplied air respirator (approval number TC-19C-363)


Part Number:
More Information
SKU ALL02-4000-01
Price $107.15
Product Weight (lbs.) 1.3
Weight 2.0000
Size Regular
Filter No
Color Blue
Brand Allegro
MPN 4000-01
UPC 741851400006
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  1. Mark

    2015-08-14 19:43:09

    Do you sell the line that connects helmet to cooler?

    1 answer
    1. Ben

      2015-08-14 19:43:09

      This item will connect to the tubing that leads off the Nova 2000 Blasting helmet. There is no need for additional line to be purchased.
      If new hose is needed we can supply it. Please call our customer service team on 1800-829-9580 with the model of your Nova Helmet so we can supply you with the correct one.

  2. Luke

    2015-10-28 17:42:02

    What supply pressure is required for the breathing air to the vortex cooler? What is the max allowable pressure it can handle?

    1 answer
    1. Ben

      2015-10-28 17:42:03

      The vortex cooler can handle a pressure range of 55-82 PSI

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