When assured valve shut off and absolute isolation are required, DAFRAM provides Double Block and Bleed valves that consist of two main in-line isolation valves and a bleed valve, used to drain or vent trapped fluid between the two obturators. This design guarantees great reliability of the system together with remarkable space and weight saving.

Various bleed valve options, end configurations and parts materials are available in order to meet service conditions and Customers' particular requirements.