Ducts are popularly known to be used in HVAC for proper air delivery and removal. They ensure thermal comfort as well as acceptable indoor air quality. Too often, a duct system is known as a ductwork. Laying out ducts, sizing them, detailing them and searching for pressure losses by means of a ducting system is known as duct design. These days, the use of an HVAC duct panel is getting more and more popular in air ductwork.
Customarily, air ductwork is made of metal sheet installed then lagged with proper insulation as succeeding operation. In most cases, ductwork that has been manufactured from unbending insulation panels requires no further insulation. Also, it often requires a single fix installation only. Quick and easy installation as well as being light in weight is among the interesting features of aluminum pre-insulated ductwork.
With modern advancements in technology, it is not hard to fabricate ducts that custom shapes can easily be built on the site or in a shop. Generally, the construction of ductwork begins with duct outline tracing onto the pre-insulated aluminum HVAC duct panel then the parts are usually trimmed at 45 degree and bent if needed to achieve different fittings (for instance, tapers and elbows) and assembled with glue.
Aluminum tape is used to all seams wherein the outside surface of the foil is cut. A broad range of flanges are currently available, thus, there will always be something that could best suit different installation requirements. All joints within are sealed using sealants. Both phenolic foam panels and polyurethane foam panels are covered with aluminum sheets. Both sides are coated with exterior aluminum thickness varying from around 80 micrometers for internal use to 200 micrometers for outside usage or in area with high air pressure.
Aluminum thickness depends on where the air duct panel would be used. This is to ensure the duct's high mechanical characteristics. In some cases, the duct is being coated with aluminum inside it and then coated with around 200 micrometers of sheet metal on the outside.
Aluminum foil closed cell foam HVAC or air duct panel is a sturdy or high strength panel that takes phenolic foam as the key material with aluminum foil reinforcement on both sides. This is a non-combustible kind of material. Meaning, it possesses no smoke as well as innocuity while trying to catch fire. Its bending strength may reach almost more than 1 Mpa and its thermal conductivity index may reach up to 0.02W/m.k.
Phenolic foam can be made into all sorts of bended or rectangular HVAC ducts. These ducts can then be transformed into air ducts of all sorts of shape and specification through adhesive and combustion resistant flange. It is used across the globe for air conveyance systems of HVAC units in apartments, office buildings, hospitals, hotels and other high-rise buildings.
An HVAC duct panel offers a number of advantages enabling an air duct system to have features like being lightweight, boast beautiful appearance, easy to maintain, foamed with phenolic structure, sound insulation and easy installation.
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