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BVNO Blast Valves - Automatic Normally Open Double-Action Valves 

Blast valves are normally open valves which allow movement of air in regular operation and provide automatic closing action in case of incoming blast wave. The valves are designed for installation on ventilation openings or as part of the duct for protection of ventilation ways and internal spaces against destructive blast wave effects.
BVNO series of blast valves was developed by Arconik for use in civil defence shelters, bunkers, safe rooms and other protected spaces.​
BVNO are automatic double action valves designed to protect from positive and negative phases of the blast.
The valves are extremely durable and can withstand a wide range of temperatures and resistant to corrosion.
Simple Installation in new structures with pre-installed wall sleeves or retrofit flanges.
The valves can be equipped with pre-filter for removing dust particles, special case with flanges or connectors to the duct.

BVNO 50 blast valve, normally open, dual action, automatic with prefilter 

BVNO 50 - Blast Valve, Optionally with Prefilter

BVNO 50 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 50 m3/h @ 200 Pascal pressure drop. 

BVNO 550 blast valve, normally open, dual action, automatic with prefilter 

BVNO 550 - Blast Valve, Optionally with Prefilter

BVNO 550 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 550 m3/h @ 200 Pascal pressure drop. 

BVNO 600  blast valve, normally open, dual action, automatic with prefilter 

BVNO 600 - Blast Valve, Optionally with Prefilter

BVNO 600 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 600 m3/h @ 200 Pascal pressure drop. 

BVNO 1000 blast valve, normally open, dual action, automatic with prefilter 

BVNO 1000 - Blast Valve, Optionally with Prefilter

BVNO 1000 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 1000 m3/h @ 200 Pascal pressure drop. 

BVNO 1800 blast valve, normally open, dual action, automatic with prefilter 

BVNO 1800 - Blast Valve, Optionally with Prefilter

BVNO 1800 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 1800 m3/h @ 200 Pascal pressure drop. 

BVNO 2600 blast valve, normally open, dual action, automatic with prefilter 

BVNO 2600 - Blast Valve, Optionally with Prefilter

BVNO 2600 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 2600 m3/h @ 200 Pascal pressure drop. 

BVNO 2900 blast valve, normally open, dual action, automatic with prefilter 

BVNO 2900 - Blast Valve, Optionally with Prefilter

BVNO 2900 blast valve, normally open, dual action, automatic, optionally with prefilter. Nominal airflow 2900 m3/h @ 200 Pascal pressure drop. 

BVNO HT 1200 8Z high temperature blast valve, normally open, dual action

BVNO HT 1200 8Z - High Temperature Blast Valve

BVNO HT 1200 8Z high temperature blast valve, normally open, dual action, automatic, optionally with prefilter. Especially designed for high temperatures of exhaust generator gases.

BVNO is a family of heavy-duty double-action self-actuating blast valves protecting the airways and internal space against blast wave pressure created by explosion

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