Volume control dampers are designed for regulation of air flow and pressure in ventilating ducts and air handling units. They are installed as independent devices or combined with protection- or overpressure louvers.Volume control dampers consist of supporting frame and interconnected blades.
A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air-handling equipment. A damper may be used to cut off central air conditioning (heating or cooling) to an unused room, or to regulate it for room-by-room temperature and climate control.
Volume control dampers are made as a spring-damper in two vertical directions. And they provide controlling the structure movement in two vertical structures.Seismic isolator is used to isolate the structures of strong ground motions during an earthquake.