Breathing valves are fixed ventilation devices on the tank roof to maintain normal internal pressure, preventing damage to the tank from overpressure or vacuum, and also to reduce the loss of liquid volatilization.
In accordance with the "Fire Prevention Code for Petroleum and Chemical Engineering Design" of ChinaGB50160-92 specifies: "Fixed-roof tanks for Class A and B liquids should be equipped with flame arresters and breathers." Our company, Daini Co., has developed the DB series of new products, which feature a complete range of specifications, compact structure, light weight, large ventilation, and minimal leakage. The products include single exhaust valves, single intake valves, and breathers, and various structural types can be combined with flame arresters. Custom connection pipes can also be provided as needed.