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Shut Off Systems for Hazardous Gases Such as About Carbon DioxideCarbon Dioxide is a colorless, odorless gas that is found normally in the atmosphere. It is a simple asphyxiant with no other health effects. Carbon Dioxide is one of the products of the burning of fossil fuels. Its concentration in the atmosphere is now increasing at a rate of 1 ppm per year, exacerbating the global warming trend. Commercially, CO2 finds uses as a refrigerant (dry ice is solid CO2), in beverage carbonation, and in fire extinguishers. It is shipped in pressurized containers to ensure that any leak, however small, will not result in contamination of the contained CO2. Carbon Dioxide Valve Closure Systems (Shutdown Systems)Powell Emergency Valve Closure Systems are designed to prevent significant releases of hazardous gases like carbon dioxide. In the case of an accidental release, the emergency valve closure system will close the valves in 10 seconds or less, effectively preventing further release from the container. Back to List of Hazardous Gases Shutdown Systems for Various Container Sizes Powell is the only manufacturer to offer both pneumatic or electric systems for both small to large container sizes.
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