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Blast and Special Airflow Control Valves

Atmas presents a wide selection of blast valves and overpressure valve for ventilation and air filtration systems of civil defence shelters, safe rooms, industrial applications and other types of protective structures which require protection of ventilation ways and internal space from blast wave pressure coming from outside.​

Our professional, tested and certified valves are installed in thousands of facilities to protect people and equipment. The valves are approved by various civil defence authorities and certified according to most modern standards.​ The valves we offer can be used in new construction or retrofitted in existing (modernization) projects.​​​

Explore our range of blast valves and blast dampers, overpressure and differential pressure valves, gas-tight and airflow control valves

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BVNO Blast Valves

Automatic action, normally open valves and dampers for installation on ventilation openings and air ways for protection of internal spaces against destructive blast wave effects.

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Blast Dampers

Blast dampers are used in ventilation systems to prevent the blast wave through external walls into the building. They are designed with high ventilation capacity. 

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BVNC - Overpressure Blast Valves

BVNC overpressure blast valves are normally closed valves, designed to control the overpressure level in the gastight shelter and between compartments like airlocks and more. 

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GK - Gastight Valves / Shut-off Valves

GK gas-tight valves are designed for installation on entrance or as part of the ventilation ducts to isolate areas from hazardous gases during emergencies.

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We request your contact details solely to process your inquiry and provide you with the most relevant information about our products and solutions. Your personal data is treated confidentially and securely. We do not share your information with third parties without your consent, except for our authorized distributors and partners in your country who may contact you directly regarding your inquiry and provide local support and communication in your preferred language.​ As we operate through official distributors in different countries, your contact details may be shared with the appropriate regional distributor to ensure efficient communication and assistance.​ After submitting the form, one of our managers or local distributors will review your request and contact you using the communication method most convenient for you.

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