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Our Class A1 Heat Insulating Glass Wool Pipe is a professional inorganic insulation product engineered exclusively for pipe insulation systems, crafted from high-quality molten glass (blended recycled and virgin raw materials) bonded with thermosetting resin. Featuring a porous ultra-fine fiber structure (fiber diameter 4–6 μm), this glass wool pipe delivers exceptional thermal insulation, sound absorption and fire resistance, with a core Class A1 non-combustible rating (EN 13501-1) that meets international fire safety standards. Lightweight and flexible in design, it is easy to transport and install on pipelines of various diameters, effectively reducing heat loss in fluid transportation and improving energy efficiency of piping systems. As an eco-friendly insulation material, it is non-corrosive, moisture-resistant and free of toxic gas release at high temperatures, making it the ideal choice for HVAC, industrial and building utility pipe insulation projects worldwide.
The porous fiber structure of the glass wool pipe traps static air efficiently, resulting in a low thermal conductivity of 0.036–0.038 W/m.K at 25°C. It maintains stable fluid temperatures inside pipelines, minimizes heat dissipation during transportation and cuts long-term operational energy costs for heating and cooling systems.
Made from inorganic glass fibers with a melting point >700°C, the product achieves Euroclass A1 fire resistance—it does not ignite, melt or release toxic fumes under high temperatures, providing reliable fire protection for industrial and building piping systems and complying with global fire safety regulations.
With an open fiber structure and a sound absorption coefficient (αw) of 0.8–1.0 (1000–4000 Hz), it effectively absorbs noise generated by fluid flow, pipeline vibration and mechanical operation, reducing noise pollution in indoor and industrial environments and enhancing acoustic comfort of HVAC systems.
Boasting a low density of 10–100 kg/m³, the glass wool pipe is lightweight and can be cut and fitted quickly to match various pipe diameters and complex pipeline layouts. It reduces on-site installation time and labor costs, suitable for both new construction and renovation projects of pipe insulation systems.
With a moisture resistance rate >98% and water absorption ≤0.5 kg/m² (24h), the product resists water vapor penetration and condensation. After professional facing treatment, it maintains stable insulation performance without deformation or aging, ensuring a long service life in indoor and controlled industrial environments.
Key Attributes | |||
Material | Glass fibre | Type | Insulation Material |
Product Name | Glass Wool Pipe | Insulation R-value | R2.0 |
Product Length (ft.) | 1000mm(customizable) | Inner Diameter | DN15-DN300(customizable) |
Thickness | 30-100mm(customizable) | Density | 40-64kg/m3 |
Shape | Pipe | Eco Friendly | Yes |
Design Style | Modern | Thermal Conductivity | 0.036–0.038W/m.K |
Color | Yellow | OEM | Accept OEM Service |
Brand Name | Zhongjia | Place of Origin | Guangdong,China |
Function | Sound insulation/Water Resistant/roof | After-sale Service | Online Technical Support, Onsite Installation |
Insulation Feature | Fire Resistant | Application | Greenhouses, Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Warehouse, Workshop,Other |
Packing | PE Bag | Warranty | 1Year |
Material | Molten glass (recycled + virgin) with thermosetting resin binder | |||||||||
Facing options | Unfaced, aluminum foil, kraft paper, glass mesh (single/double-sided) | |||||||||
| Glass Pipe：40-64kg/m³ | ||||||||||
Density | Glass Wool Board:32–96 kg/m³ | |||||||||
Glass Wool Blanket：10–32 kg/m³ (common: 16/24/32 kg/m³); tolerance ±10% | ||||||||||
Thermal conductivity (λ) | @25°C: approx. 0.036–0.038 | |||||||||
Max service temp | Recommended continuous operating temperature: ≤250°C | |||||||||
Reaction to fire | Euroclass A1/A2 (non-combustible) (EN 13501-1); | |||||||||
Melting point | >700°C (fibers) | |||||||||
Shot content (≥0.25mm) | ≤0.3% (ultra-fine grade) | |||||||||
Fiber diameter | 4–6 μm, max ≤8.0 μm | |||||||||
Moisture resistance | >98% | |||||||||
Water absorption | ≤0.5 kg/m² (24h); hydrophobic option available | |||||||||
Chemical Properties | neutral, non-corrosive | |||||||||
Compressive strength | ≥20 kPa (density ≥24 kg/m³) | |||||||||
Tensile strength (faced) | ≥50 kPa | |||||||||
Sound absorption coefficient (αw) | 0.8–1.0 (1000–4000 Hz, thickness ≥50mm) | |||||||||
Certifications | CE, ISO 9001,ISO9001,ISO45001,ISO14001 green building labels/ LEED compliance where applicable | |||||||||
The glass wool pipe is widely used in pipeline insulation across multiple industries, with core applications including:
HVAC Heating & Cooling Pipelines: Insulates hot and cold water pipes, reduces condensation and heat loss, and maintains stable indoor temperatures in residential and commercial buildings.
Industrial Process Pipelines: Suitable for steam, hot water and low-temperature fluid pipelines, stabilizes process temperatures and protects workers from high surface temperatures.
Building Utility Pipes: Applied to domestic hot water and ventilation piping systems, improves thermal efficiency and prevents energy loss in public and commercial buildings.
Chilled Water Systems: Prevents condensation and corrosion for low-temperature pipelines in data centers, hotels and industrial cooling facilities.
Power Plant Pipelines: Withstands high operating temperatures, reduces heat loss and supports energy-efficient operation of power and energy facilities.
We offer comprehensive customization service for glass wool pipe to meet diverse project requirements:
Dimension Customization: Custom inner diameter (≥20mm), thickness (30–100mm) and length according to pipeline specifications;
Facing Customization: Optional unfaced, aluminum foil, kraft paper or single/double-sided glass mesh facing;
Density Customization: Adjust density (40-64 kg/m³) for different insulation and mechanical strength needs;
OEM Service: Accept brand customization, packaging customization and technical parameter customization for bulk B2B orders.
For B2B clients, we provide a full range of professional after-sales support:
Online Technical Support: 24/7 online technical consultation for product selection, installation and usage issues;
Onsite Installation Guidance: Dispatch professional technicians to provide on-site installation training and construction guidance for large-scale projects;
Quality Warranty: 1-year official warranty for all products, with free replacement for non-human quality problems;
Bulk Order Service: Special logistics and after-sales team for bulk orders, ensuring on-time delivery and timely problem solving.
A: It has an insulation R-value of R2.0 and a thermal conductivity of 0.036–0.038 W/m·K at 25°C. It is rated Euroclass A1/A2 non-combustible, with a fiber melting point >700°C and no toxic gas emission at high temperatures.
A: Yes. The standard length is 1000mm and thickness is 30-100mm, all of which can be customized according to project needs. Its density can be adjusted in the range of 40-64kg/m³.
A: It is mainly applied to HVAC heating and cooling pipelines, industrial process pipelines, building service and utility pipes, cold and chilled water systems, as well as pipelines in power plants and energy facilities.
A: Yes. Its moisture resistance is over 98%, water absorption is ≤0.5 kg/m² within 24 hours, and hydrophobic options are also available, which can maintain stable performance in humid environments.
Our Class A1 Heat Insulating Glass Wool Pipe is a professional inorganic insulation product engineered exclusively for pipe insulation systems, crafted from high-quality molten glass (blended recycled and virgin raw materials) bonded with thermosetting resin. Featuring a porous ultra-fine fiber structure (fiber diameter 4–6 μm), this glass wool pipe delivers exceptional thermal insulation, sound absorption and fire resistance, with a core Class A1 non-combustible rating (EN 13501-1) that meets international fire safety standards. Lightweight and flexible in design, it is easy to transport and install on pipelines of various diameters, effectively reducing heat loss in fluid transportation and improving energy efficiency of piping systems. As an eco-friendly insulation material, it is non-corrosive, moisture-resistant and free of toxic gas release at high temperatures, making it the ideal choice for HVAC, industrial and building utility pipe insulation projects worldwide.
The porous fiber structure of the glass wool pipe traps static air efficiently, resulting in a low thermal conductivity of 0.036–0.038 W/m.K at 25°C. It maintains stable fluid temperatures inside pipelines, minimizes heat dissipation during transportation and cuts long-term operational energy costs for heating and cooling systems.
Made from inorganic glass fibers with a melting point >700°C, the product achieves Euroclass A1 fire resistance—it does not ignite, melt or release toxic fumes under high temperatures, providing reliable fire protection for industrial and building piping systems and complying with global fire safety regulations.
With an open fiber structure and a sound absorption coefficient (αw) of 0.8–1.0 (1000–4000 Hz), it effectively absorbs noise generated by fluid flow, pipeline vibration and mechanical operation, reducing noise pollution in indoor and industrial environments and enhancing acoustic comfort of HVAC systems.
Boasting a low density of 10–100 kg/m³, the glass wool pipe is lightweight and can be cut and fitted quickly to match various pipe diameters and complex pipeline layouts. It reduces on-site installation time and labor costs, suitable for both new construction and renovation projects of pipe insulation systems.
With a moisture resistance rate >98% and water absorption ≤0.5 kg/m² (24h), the product resists water vapor penetration and condensation. After professional facing treatment, it maintains stable insulation performance without deformation or aging, ensuring a long service life in indoor and controlled industrial environments.
Key Attributes | |||
Material | Glass fibre | Type | Insulation Material |
Product Name | Glass Wool Pipe | Insulation R-value | R2.0 |
Product Length (ft.) | 1000mm(customizable) | Inner Diameter | DN15-DN300(customizable) |
Thickness | 30-100mm(customizable) | Density | 40-64kg/m3 |
Shape | Pipe | Eco Friendly | Yes |
Design Style | Modern | Thermal Conductivity | 0.036–0.038W/m.K |
Color | Yellow | OEM | Accept OEM Service |
Brand Name | Zhongjia | Place of Origin | Guangdong,China |
Function | Sound insulation/Water Resistant/roof | After-sale Service | Online Technical Support, Onsite Installation |
Insulation Feature | Fire Resistant | Application | Greenhouses, Hotel, Villa, Apartment, Office Building, Hospital, School, Mall, Sports Venues, Leisure Facilities, Supermarket, Warehouse, Workshop,Other |
Packing | PE Bag | Warranty | 1Year |
Material | Molten glass (recycled + virgin) with thermosetting resin binder | |||||||||
Facing options | Unfaced, aluminum foil, kraft paper, glass mesh (single/double-sided) | |||||||||
| Glass Pipe：40-64kg/m³ | ||||||||||
Density | Glass Wool Board:32–96 kg/m³ | |||||||||
Glass Wool Blanket：10–32 kg/m³ (common: 16/24/32 kg/m³); tolerance ±10% | ||||||||||
Thermal conductivity (λ) | @25°C: approx. 0.036–0.038 | |||||||||
Max service temp | Recommended continuous operating temperature: ≤250°C | |||||||||
Reaction to fire | Euroclass A1/A2 (non-combustible) (EN 13501-1); | |||||||||
Melting point | >700°C (fibers) | |||||||||
Shot content (≥0.25mm) | ≤0.3% (ultra-fine grade) | |||||||||
Fiber diameter | 4–6 μm, max ≤8.0 μm | |||||||||
Moisture resistance | >98% | |||||||||
Water absorption | ≤0.5 kg/m² (24h); hydrophobic option available | |||||||||
Chemical Properties | neutral, non-corrosive | |||||||||
Compressive strength | ≥20 kPa (density ≥24 kg/m³) | |||||||||
Tensile strength (faced) | ≥50 kPa | |||||||||
Sound absorption coefficient (αw) | 0.8–1.0 (1000–4000 Hz, thickness ≥50mm) | |||||||||
Certifications | CE, ISO 9001,ISO9001,ISO45001,ISO14001 green building labels/ LEED compliance where applicable | |||||||||
The glass wool pipe is widely used in pipeline insulation across multiple industries, with core applications including:
HVAC Heating & Cooling Pipelines: Insulates hot and cold water pipes, reduces condensation and heat loss, and maintains stable indoor temperatures in residential and commercial buildings.
Industrial Process Pipelines: Suitable for steam, hot water and low-temperature fluid pipelines, stabilizes process temperatures and protects workers from high surface temperatures.
Building Utility Pipes: Applied to domestic hot water and ventilation piping systems, improves thermal efficiency and prevents energy loss in public and commercial buildings.
Chilled Water Systems: Prevents condensation and corrosion for low-temperature pipelines in data centers, hotels and industrial cooling facilities.
Power Plant Pipelines: Withstands high operating temperatures, reduces heat loss and supports energy-efficient operation of power and energy facilities.
We offer comprehensive customization service for glass wool pipe to meet diverse project requirements:
Dimension Customization: Custom inner diameter (≥20mm), thickness (30–100mm) and length according to pipeline specifications;
Facing Customization: Optional unfaced, aluminum foil, kraft paper or single/double-sided glass mesh facing;
Density Customization: Adjust density (40-64 kg/m³) for different insulation and mechanical strength needs;
OEM Service: Accept brand customization, packaging customization and technical parameter customization for bulk B2B orders.
For B2B clients, we provide a full range of professional after-sales support:
Online Technical Support: 24/7 online technical consultation for product selection, installation and usage issues;
Onsite Installation Guidance: Dispatch professional technicians to provide on-site installation training and construction guidance for large-scale projects;
Quality Warranty: 1-year official warranty for all products, with free replacement for non-human quality problems;
Bulk Order Service: Special logistics and after-sales team for bulk orders, ensuring on-time delivery and timely problem solving.
A: It has an insulation R-value of R2.0 and a thermal conductivity of 0.036–0.038 W/m·K at 25°C. It is rated Euroclass A1/A2 non-combustible, with a fiber melting point >700°C and no toxic gas emission at high temperatures.
A: Yes. The standard length is 1000mm and thickness is 30-100mm, all of which can be customized according to project needs. Its density can be adjusted in the range of 40-64kg/m³.
A: It is mainly applied to HVAC heating and cooling pipelines, industrial process pipelines, building service and utility pipes, cold and chilled water systems, as well as pipelines in power plants and energy facilities.
A: Yes. Its moisture resistance is over 98%, water absorption is ≤0.5 kg/m² within 24 hours, and hydrophobic options are also available, which can maintain stable performance in humid environments.
