Centrifugal glass wool tube is a filamentary material made of glass in a molten state by centrifugal blowing process to fiberize and spray thermosetting resin and processing by thermal curing. The application of glass wool pipe is very wide, whether it is a refrigerated pipe, a hot water pipe, or a steam pipe, this material can achieve a good thermal insulation effect. Because its performance is relatively stable, it can normally work regardless of low temperature or high temperature and it is less restricted by region and weather. Bulk density: 30-80kg/m3 Inner diameter of the shell: 22-1200mm Thickness: 30mm-100mm Aluminum foil can be pasted on the surface. 
The glass wool pipe can work in low temperature environment, which is very suitable for cold winter. In addition, this product has good waterproof performance and anti-corrosion performance, it will not cause mold and insect problems when buried underground. Because the pipe has the characteristics of waterproof, anti-corrosion, mold-free, and insect-free, it can effectively prevent condensation and prevent pipeline freezing. It is widely used in civil buildings, heating pipelines, air conditioning, refrigeration equipment, heat preservation, and heat insulation , The energy saving effect can be increased by 15-30%. 
| Unit | National Standard | Our test | Note | |
| Density | kg/m3 | 10-100 | GB/T13350-2000 | |
| Average fiber diameter | μm | ≤8.0 | 5.5 | GB/T13350-2000 |
| Hydrophobic rate | % | ≥98 | 98.2 | JISA9512-2000 |
| Thermal Conductivity | w/m.k | ≤0.042 | 0.033 | GB/T13350-2000 |
| Incombustibility | 0 | Non-flammable | Non-flammable | GB/T13350-2000 |
| Sound absorption coefficient | 0 | 0 | 1.03 Product reverberation method 24kg/m3 2000HZ | GB/J47-83 |
| High temperature | ℃ | 400 | 410 | GB/T13350-2000 |
Glass wool tube has the advantages of heat insulation and energy saving, so it can be widely used power plants, chemical, pharmaceutical and other industries and boilers, reactors, tanks, pipelines. Many pipes have problems with water leakage, mildew and even insects, but this material does not. The glass wool pipe with aluminum foil on the outside, two layers of staggered lap joints, and fixed on the vertical main keel with heat-resistant steel plates, leaving a 50mm thick air layer on the inner side of the insulation material from the structural wall.