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What is PIR ductwork and its advantages?

What is PIR ductwork and its advantages?

2023-04-27

What is PIR ductwork and its advantages?


PIR Pre-insulated Duct is a high-tech foamed PIR duct panel, which is uniformly sprayed on color steel, aluminum foil, aluminum sheet and other surface materials by PIR raw materials, and foamed at a certain temperature. Pressed and formed by a laminator. This board has a fire rating of B1 (GB 8624-2006), does not emit black poisonous smoke when burned, does not contain CFC and HCFC, and is an environmentally friendly material. 0.06mm aluminum foil or 0.18mm color steel plate/aluminum plate with antibacterial and anti-oxidation coating on the surface of PIR air duct plate is very strong and durable, the surface is not easy to be corroded and rusted, the appearance is clean and hygienic, and no condensation will occur due to the absorption of moisture in the air , service life of more than 20 years. Due to the use of PIR foam with a closed cell rate of 95% as the board core, this air duct board has super-excellent heat insulation performance (0.022w/m.k) and sound insulation performance, which is very energy-saving, and there will be no noise problems such as vibration and echo. The PIR air duct system has been recognized by the world's air duct industry as a very economical, very professional, very constructive and high-level new air duct system.


Air conditioner supply and return air ducts, fresh air ducts that have undergone cold and heat treatment are finished air ducts, and the air ducts are made of modified polyisocyanurate PIR thermal insulation composite pipes.


The middle is a special modified high-density PIR insulation material, the minimum thermal resistance of the insulation material is 0.85(m²·K)/W, does not contain formaldehyde, the density is 50Kg/m³, the thickness is 22mm, and the thermal conductivity at 25°C is 0.018W(m.k) . The air duct as a whole is non-combustible Class A. The thickness of the steel plate and the allowable air leakage rate shall comply with the provisions of Specification A for medium-pressure system air ducts. etc. shall comply with the provisions of Specification A for medium-pressure system air ducts.


Advantages of PIR air duct system:

■ Safety performance: PIR air duct system has excellent flame retardant properties, is not soluble, and produces low smoke toxicity. It has been recognized as the safest air duct system by the world's important international fire prevention organizations (fire protection class 0 - BS 476 Part 6&7 , equivalent to domestic B1 standard - GB 8624-2006)

Heat insulation and energy saving: The heat conduction system of PIR plate is as low as 0.018w/m.k, which ensures that the air duct system has a super heat insulation effect and reduces a lot of energy loss.

To fabricate PIR pre-insulated ducts, we use PIR pre-insulated duct board cutting machine. PIR pre-insulated duct board cutting machine is a machine with a dedicated software to fabricate PIR pre-insulated ductworks. PIR pre-insulated duct board cutting machine is a cnc machine used to cut PIR pre-insulated ducts.

■ Convenient construction: lighter than traditional metal air ducts, easy to transport and on-site production and installation, saving a lot of transportation and labor costs.

■ Clean and beautiful: PIR sheet double-sided composite antibacterial and anti-oxidation coating embossed aluminum foil, the appearance is beautiful, and it can keep the pipeline clean and improve the air quality

High air tightness: Supplemented by special connections and reinforcement accessories, the air tightness of the PIR air duct system is far superior to that of traditional air ducts, and the air tightness is more than 8 times that of traditional iron air ducts, which can reduce power consumption and enhance the cooling room Effect.

■ Sound insulation and noise reduction: Due to the excellent shock absorption and sound insulation performance of PIR foam, the PIR air duct system will not produce annoying noise and vibration, improving space comfort.

■ Service life: The surface of the aluminum foil has an anti-corrosion coating, which greatly increases the service life, is easy to maintain, and has a service life of more than 20 years.

■ Low water absorption: After soaking for 24 hours, the water absorption rate of PIR sheet is lower than 0.36%, which is suitable for corrosive and humid environments such as kitchens, swimming pools and saunas.

■ Widely used: PIR pre-insulated ducts are widely used in hospitals, pharmaceutical factories, meat food factories, airports, schools, electronics factories, dust-free workshops, chemical factories, supermarkets and other large places, as well as general homes, stores and other buildings, especially for construction Renovation of old buildings with limited space.

To fabricate PIR pre-insulated ducts, we use PIR pre-insulated duct board cutting machine. PIR pre-insulated duct board cutting machine is a machine with a dedicated software to fabricate PIR pre-insulated ductworks. PIR pre-insulated duct board cutting machine is a cnc machine used to cut PIR pre-insulated ducts.  


PIR ductwork



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