RTB – Round Take-Off By-Pass Damper


Model: RTB

This NEW barametric by-pass damper is a single blade, counter balanced weighted damper that operates on air pressure in order to control the flow of by-pass air. the RTB has an adjustable arm and weight to maintain the correct amount of pressure in the duct system.

Can be mounted in both horiztonal & verticle positions for either up flow or down flow systems.

*Order as RTBdd

Sizes: 8″, 10″, 12″, 14″


SKU: N/A Categories: ,


Round Take-Off By-Pass is a combination take-off collar and adhesive seal and by-pass damper in one unit. All RTB dampers are 8″ in length.

RTB Installation and Operation Instructions