Double Block and Bleed Valve
Double Block and Bleed Valve, also called DBB Ball Valve, is designed for pipeline isolation where two sealing points and a bleed or vent connection between them are required. It is commonly used in oil, gas, chemical, metering, tank farm and pipeline station service. Floating-ball, trunnion-mounted, single-body or twin-ball configurations can be selected according to pressure class, valve size, DBB/DIB requirement, medium and approved project specification.