BTDR-50 Bowtie Damper

May 8, 2023

Greenheck’s BTDR-50 is a cable-operated radial blade balancing damper, also known as a bowtie damper, that is designed for easy airflow adjustment at an air outlet or plenum neck. The BTDR-50 is available in steel in 6-, 8-, 10-, 12- and 15-in. diameters, with pressure capacity up to 1 in. wg, operational velocity up to 1600 fpm, and a maximum temperature of 240 oF. Dampers ship factory-assembled with 3-foot cables making them easy to install. Cable-operated dampers are easily adjusted via rotary cable actuation using either a nut driver or screwdriver. Model BTDR-50 is ideal for applications where it is difficult to get access to manually adjust the dampers and balance the airflow such as through the face of a diffuser or grille.

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