Heavy - presented to too much indulgence of bodily appetites especially for intoxicating liquors; "a tough drinker" Indicators through the AFP or when a sharp rise in temperature exceeding the trip setpoint is detected, activate the pneumatic or electric powered actuators to close the damper when an event is detected. https://dampers-for-industrial-se90011.blogocial.com/everything-about-dampers-for-industrial-sector-72765003