Dampers

As a professional air movement equipment manufacturer, Quanda provides a variety of dampers, including fire dampers, smoke dampers, volume control dampers, positive pressure dampers, rectangular constant air volume dampers, rectangular slide gate dampers and more.
    1. Fire Dampers
    2. Fire Dampers Fire dampers are installed in ventilation or air conditioning (HVAC) ducts to prevent fire from spreading inside the ductwork. Quanda provides a variety of fire dampers made of a variety of material to make them suitable for different applications. Materials include galvanized sheets, cold plates (A3) or stainless steel (which is ideal for clean room air conditioning systems and kitchen exhaust systems).
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    1. PYK ​Series Smoke Dampers
    2. PYK ​Series Smoke Dampers Smoke dampers are passive fire protection systems generally installed in smoke resistant stairwells, windowless room exhaust systems, walls, and ceilings. During a fire, smoke dampers will be opened either automatically or using a 24V DC power supply for smoke ventilation and exhaust. Smoke dampers are commonly used in factories, schools, malls, hospitals, and other public spaces.
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    1. QD ​Series ​Volume Control Damper
    2. QD ​Series ​Volume Control Damper Volume control damper is installed in ductworks of air conditioning ventilation systems. It can regulate the air volume in the duct by the changing angles of its blades. It also can be used for regulating the fresh air and return air. Its valve is made of iron sheet, galvanized sheet, aluminum alloy sheet, or stainless steel sheet.
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    1. QD-DFL ​Series Positive Pressure Damper
    2. QD-DFL ​Series Positive Pressure Damper The positive pressure damper is designed to control the internal pressure within the cleanroom or purification workshop to retain a constant positive pressure and prevent intrusion of contaminated air.
      The positive pressure damper can be mounted on a wall 30-50mm thick.
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    1. QD-DFL Series Rectangular Constant Air Volume Damper
    2. QD-DFL Series Rectangular Constant Air Volume Damper The rectangular constant air volume damper is designed for maintaining a constant volume flow rate within a certain degree. It is widely used in fresh air systems, exhaust systems, variable air volume air conditioning systems, purification air conditioning systems and more.
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    1. QD-XBF Series Rectangular Slide Gate Damper
    2. QD-XBF Series Rectangular Slide Gate Damper The rectangular slide gate damper is used as a vent of ventilation system and exhaust system. It can be installed on the walls and ceilings of stairwell, windowless room, etc.
      In the event of a fire, the damper will open either automatically or using a 24V DC power supply for smoke ventilation and exhaustion.
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Dongguan Quanda Environmentally Friendly Ventilating Equipment Co. is a company specialized in the design and production of air movement equipment. Established in 2008, we manufacture an extensive selection of air handling systems that include centrifugal fans and blowers, axial fans, roof exhausters and ventilators, vents and diffusers, and sound attenuators. This equipment is designed for high-performance ventilation and smoke extraction system applications for many different building types, including high-rises, office buildings, factories, entertainment venues, and residences.