Compressed Air / Vortex Tube / PAC
Compressed air / Vortex tube based cooling system utilises a vortex tube or Personal Air Conditioner (PAC) tube that generates cold air and a vest with perforated tubes to diffuse the cold air over the worker’s torso. The PAC spins the supplied compressed air in a high speed vortex, separating it into hot and cold air streams. The cold air is directed towards the vest and the hot air is vented out. Inside the vest, the cold air is circulated over the torso through specially designed perforated piping, providing a cooling effect to the wearer. This technology offers continuous and consistent cooling as long as the PAC is connected to the air compressor. Temperature differential of upto 40 °C maybe expected (Test condition with 35 °C ambient air temperature, 4 bar incoming air pressure, 400 LPM air consumption). The vest remains tethered to the compressor through an air hose (recommended diameter 8 or 11 mm & min air pressure of 4 bar).
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PAC or vortex tube based cooling vests can provide continuous and consistent cooling which is not possible with evaporative or PCM vests. They also are a perfect alternative for use where in workshops or warehouses where air conditioning is not an option. Vortex tube / PAC technology also helps reduce non productive cooling breaks in hot work areas near furnaces, smelters etc.
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Welding Operations
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Shipyards
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Sand Blasting
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Workshops
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Power Plants
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Boiler rooms
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Metal Industries
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Casting / Forging shops
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Mines
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Smelters
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Foundries
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Steel Mills
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HAZMAT Operations
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Warehouses without air conditioning
PAC with vests
When you need a cooling vest that works in high humidity, low air flow areas, can work under heavy protective gear and offer continuous and consistent cooling, Vortex tube / PAC that works with compressed air is the way to go. These cooling vests are great for shipyards, metal industries, workshops etc. Often referred to as "Welder's vest", these vests provide cooling as long as compressed air supply is available.
