Model BTDR-50 — a cable-operated, radial-blade, balancing damper, also known as a bowtie damper — 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-inch diameters, with pressure capacity up to 1 inch of water column, operational velocity up to 1600 fpm, and a maximum temperature of 240oF. 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.