Safe working behind leaking valves Valvetight’s answer to safe working behind leaking isolation valves: the DBB-SAVER The DBB-SAVER is used to prevent any leakage through either a Double Block & Bleed or Single Isolation (ball) valve configuration The DBB-SAVER will monitor the bleed aection automatically online. It makes sure no gas can pass the valve and monitors the condition of the seal to ensure safety Remote automated alarm functionality to any desired location