B-409 DW Transition
DoubleWall Monitored Transition/Piping Sump
The B-409-D-AB Series of DoubleWall Piping Sumps are also known as transition sumps and feature a single body with a closed DoubleWall bottom. This 1-piece sump features a high-neck round reducer at the top and is Octagonal (8-sided) all the way to the tank. Available in 56″, 48″ and 42″ diameters with 36″ or 32″ reducers, it has no joints to laminate. Read more
It ships under a continuous vacuum test of 20”+ Hg so you can be confident in the sump’s integrity before you start installing it. Natural colored clear walls allow for visual observation of the sump during all stages of installation and testing. Bravo DoubleWall sumps feature an 1/8″ interstice made with a 3D-woven fiberglass fabric which provides a compressive resistance of 1300 PSI. This means less fluid to fill and no “floating” walls. The interstice is filled with monitoring fluid via a Hydro-Vacuum filling procedure but can also be vacuum monitored without any special parts or tools. This sump is kitted to include a combination pressure/vacuum gauge, monitoring tubing, liquid reservoir, and monitoring fluid (propylene glycol). Sump covers are sold separately and one Bravo Vacuum Generator (Part # “VAC-KIT-D-AB”) is mandatory for each job site to complete the liquid fill.