475-Type II Energy-saving Silencing Duct

Summary： Product structure: Composed of composite aluminum foil and centrifugal glass fiber, with a total of three layers from the outside to the inside.

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475-Type II Energy-saving Silencing Duct

475-II product characteristics

Type number		475 - II	475-III
Board thickness	mm	25	25
Board specifications	mm×mm	1200 × 3000	1200 × 3000
Thermal conductivity coefficient	W/m . K（ 70℃ )	0 .042	0 .042
Maximum wind speed	m/s	25 .4	25 .4
Maximum temperature	℃	121	121
Maximum static pressure	Pa	-500 ~ +500	-500 ~ +1500
Sound absorption coefficient	100 ~ 5000HZ	0 .89	-

Energy-saving sound-absorbing duct's excellent performance:

Air quality is cleaner:

The special inner surface treatment process of the Sound Guardian energy-saving sound-absorbing duct board can protect the inner wall of the duct from erosion caused by dust and dirt due to improper maintenance of the filtration system, with excellent mildew-proof, antibacterial, and moisture-proof performance, and can reduce the growth of microorganisms on the inner wall of the duct, and can be cleaned with a regular duct cleaning machine. It meets the highest requirements of air conditioning ventilation systems.

Indoor environment is quieter:

According to the National Standard of the People's Republic of China GB5516-2021 General Specification for Building Environment, Page 2, 2.1.1-2.1.4 Indoor Noise Limits, the Sound Guardian energy-saving sound-absorbing duct has good sound absorption performance, which can significantly reduce machine noise and noise within the duct system.

Sound Guardian energy-saving sound-absorbing duct pressure loss test curve

Composite aluminum foil and centrifugal glass fiber made

Energy-saving system is more efficient

The Sound Guardian energy-saving sound-absorbing duct is a high-seal, low-leakage duct system, with advanced and reasonable manufacturing and installation processes. It can reduce energy consumption, and after proper installation, the airtightness of the system is 9 times that of traditional galvanized iron ducts, which can greatly reduce the operating costs of the air conditioning system.

Insulation performance is better

The outer layer of the Sound Guardian energy-saving sound-absorbing duct board's reinforced aluminum foil has good airtightness, serving as a good air barrier; the inner layer's well-performing insulation layer keeps the air temperature inside the duct stable, thus greatly reducing the condensation problem of the duct.

Sound Guardian energy-saving sound-absorbing duct air leakage test curve

Composite aluminum foil and centrifugal glass fiber made