Positively Isolate Explosive Vapors From Hot Work Areas When Performing Modifications and Repairs
Now available in a three port design!
- 3/4" to 24" Pipe Sizes
- Schedule 40, 80 and STD
The Double Block & Bleed (DBB) Plug revolutionizes isolation and testing of pipe connections. The DBB Plug allows an operator to positively isolate and monitor potentially explosive vapors during “hot work”, then effectively hydrotest the new weld connection with one easy to use tool. The dual cavity port design allows water to be introduced to the section between the seals through the fill port while air is simultaneously evacuated through the vent port - creating an air-free barrier between the hot work and residual upstream gases.
The Aluminum/Steel construction makes the tool highly portable, and easy to position. The volume of water required for a test is so small that testing can be accomplished using a hand pump. This greatly facilitates testing in remote areas of the facility.
A major California Refinery found that one man can easily handle a 10” Plug.
Features & Benefits