Product features:

Using flange connection, the structure is short and sturdy. The flame retardant layer is made of stainless steel wire mesh, and the shell is made of carbon steel and stainless steel. The diameter can be manufactured in DN50-400mm specifications, or customized according to customer requirements.

Product Scope of Application:

It is a safety device used to prevent the accidental ignition of flammable gases or flammable liquid vapors in pipelines, causing flames to spread along the pipeline and cause explosions. Widely used in pipelines for transporting or discharging flammable gases such as torch systems, heating furnace fuel gas systems, petroleum gas recovery systems, or other flammable gas systems, it can effectively ensure the safe operation of the entire system equipment and usage points. A breathing valve is a ventilation device fixed on the top of a storage tank to ensure the normal pressure inside the tank, prevent damage to the tank due to overpressure or vacuum, and reduce the loss of liquid volatilization inside the tank. According to the Chinese Fire Protection Design Code for Petrochemical Industry (GB50160-92), "Fixed top tanks for Class A and Class B liquids should be equipped with breathing valves." Da Ye Company has developed a new series of DB type products, which have the advantages of complete specifications, compact structure, light weight, large ventilation capacity, and small leakage. The products include single breathing valves, single suction valves, and breathing valves. Various structural types can be combined and constructed, and the required connecting pipes can also be configured. Using flange connection, the structure is short and sturdy. The flame retardant layer is made of stainless steel wire mesh, and the shell is made of carbon steel and stainless steel. The diameter can be manufactured in DN50-400mm specifications, or customized according to customer requirements.

Working principle of the product:

It is a safety device used to prevent the accidental ignition of flammable gases or flammable liquid vapors in pipelines, causing flames to spread along the pipeline and cause explosions. Widely used in pipelines for transporting or discharging flammable gases such as torch systems, heating furnace fuel gas systems, petroleum gas recovery systems, or other flammable gas systems, it can effectively ensure the safe operation of the entire system equipment and usage points.