When fully rotated/engaged, airflow is blocked absolutely; when disengaged/open, air can stream unimpeded through the entire procedure. Generally known as gate valves, blast gate dampers are simple, robust and utilized thoroughly within the air flow of equipment in industrial environments for dust extraction. Dampers are essential parts of an HVAC https://air-control-dampers-for-e56789.blogitright.com/36913042/everything-about-air-control-dampers-for-hot-climates