Allegro Industries 4000-20 Abrasive Helmet Heater w/ Belt, High Pressure, Red Body with Black Control Valve

This valve adjusts the amount of air to the helmet and adjusts air 25 degrees warmer than the ambient air for use in cold environments.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 air streams by forcing the compressed air through a generation chamber which spins the aircentrifugally 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 25° F (-3.8° C) warmer than the ambient air for use in cold environments.

Features:

• 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° F (-3.8° C)
• Belt adjust to fit up to 50" (127 cm) waist

For more information, please see Data Sheet