DBB Ball Valve

DBB ball valve, also known as Double Block-and-Bleed Valve. The uniqueness of this valve lies in that it is equipped with two independent seals, which control the flow of the medium through two valve seats; At the same time, a special interface is set between the two independent seals to release the pressure of the medium to prevent potential problems caused by excessive pressure. When working, the valve is opened, the cavity is discharged and the pressure is released to prevent pressure accumulation and safety accidents caused by excessive pressure. When closed, the two seals can maintain sealing at the same time. Even if one of the valve seats fails, the other valve seat can still ensure the closure of the pipeline and ensure that the medium will not leak. Double sealing is safer. With its double sealing and pressure relief functions, it ensures that the medium can be effectively controlled to 0 leakage under any circumstances, and can release the pressure in the valve cavity. It is widely used in petroleum, chemical and other occasions where the medium needs to be strictly cut off to ensure system safety. In addition, the DBB valve also has the advantages of easy operation and low maintenance cost, which can significantly improve the reliability and safety of the system.