Your Professional Glass Wool Tube Supplier
Langfang Henggang Energy Saving Technology Co., Ltd. was established in 2020 and specializes in producing high-quality insulation materials, including rock wool, glass wool, and rubber & plastic products. Our factory is equipped with advanced production lines and core equipment, including automated systems and testing facilities. We have a skilled team focused on quality control, customer service, and innovation. With multiple production lines and a strong R&D capacity, we serve both domestic and international markets. Our products meet strict quality standards, ensuring reliable performance for industries such as construction, petroleum, power, and transportation.
Why choose us
Certifications
Our products are ISO9001 \CE and SGS certified, ensuring compliance with global quality and safety standards, which enhances their credibility in international markets.
Sales Markets
These products not only meet the needs of the domestic market, but are also exported to the United States, Russia, Canada, Poland, Korea, India, Saudi Arabia and many other countries and regions.
Quality Assurance
We maintain a comprehensive quality assurance system to monitor production processes closely, ensuring the highest quality insulation materials that meet both domestic and international standards.
Technical Support
Our experienced team is dedicated to continuous improvement, with a focus on R&D and optimizing production processes, allowing us to meet both domestic and international customer requirements.
Fire Resistant Glass Wool Pipe Section
Fiberglass wool pipe sections are advanced insulation products designed to provide effective thermal and acoustic insulation for various types of pipes. They are made from fine glass fibers that are spun and woven together to create a dense and lightweight material. These pipe sections are pre-formed to fit around pipes of different diameters and thicknesses, offering a seamless and efficient solution for insulating pipes in different applications.
|
Tested Content |
Tested Value |
Tested Method |
|
Density |
80kgs/m³ |
GB/T 5480.3 |
|
Thickness |
50mm |
GB/T 5480.3 |
|
Thermal Conductivity(W/mK) |
|
SATM C 518(C 177) |
|
24ºC |
0.033 |
|
|
38ºC |
0.035 |
|
|
93ºC |
0.04 |
|
|
149ºC |
0.049 |
|
|
204ºC |
0.061 |
|
|
260ºC |
0.074 |
|
|
316ºC |
0.089 |
|
|
Maximum Service Temperature |
450ºC |
GB/T 17430,GB50264 |
|
Recommended Service Temperature |
400ºC |
ASTM C411-05,ASTM C447-03,GB50264 |
|
Non-Combustibility |
|
|
|
Flame Diffusivity |
50 |
ASTM E84-10 |
|
Flame Propagation |
25 |
ASTM E84-10 |
|
Fire Performance |
Class A1 |
GB 8624,EN13501-1,BS 476 Part4 |
|
Water Vapor Sorption(% by Weight) |
≤1% |
ASTM C1104/1104M |
|
Water Vapor Sorption(% by Volume) |
≤1% |
ASTM C1104/1104M |
|
Water Repellency(option available) |
>99% |
GB/T 10299 |

Features of Fire Resistant Glass Wool Pipe Section
Chemical Stability
Chemically inert, rot-proof, and odorless, ensuring longevity even in challenging environments.
Fire Safety
Non-combustible for enhanced safety, adding an extra layer of protection to installations.
Biological Resilience
Resistant to fungus, bacteria, and vermin, guaranteeing hygienic and sustainable insulation.
Thermal Conductivity
Low thermal conductivity of 0.030 W/m·K at 25°C, minimizing heat transfer.
Corrosion Resistance
Non-corrosive, standing strong against environmental elements for lasting performance.
Advantages of Fire Resistant Glass Wool Pipe Section
Energy Efficiency
Significant energy savings through minimized heat loss or gain, leading to cost reductions.
Unparalleled Thermal Control
Effectively controls temperature fluctuations, ensuring a consistent and comfortable environment.
Safety First
Prioritizes safety with non-combustible, fire-resistant properties in every application.
Hygienic Assurance
Resistant to biological threats, maintaining hygienic conditions over time.
Effortless Installation
Streamlined installation process ensures a precise fit for convenience.
Enduring Performance
Maintains insulation integrity even in demanding conditions for lasting results.
Applications of Fire Resistant Glass Wool Pipe Section
Industrial Excellence
Insulate process pipes and equipment in industrial settings, optimizing efficiency and safety.
HVAC Systems
Elevate temperature control by insulating heating, ventilation, and air conditioning ducts and pipes.
Residential Comfort
Transform homes by insulating water and steam pipes, promoting energy efficiency.
Densities (Kg/M3): Available in 80 kg/m³ density for a balance between insulation effectiveness and lightweight performance.
Thickness (mm): Options of 25mm and 50mm for tailored insulation based on requirements.
Dimensions: Crafted precisely at 0.900mm for an optimal fit and efficient installation.
Temperature Range: Withstands temperatures up to 2300°C, ensuring stability and performance in extreme conditions.

Precautions
Skin and Respiratory Protection:
Wear long sleeves, gloves, goggles, and an N95 mask to avoid irritation from airborne fibers or direct contact.
Work Area Ventilation
Ensure adequate airflow when cutting or fitting insulation indoors to reduce fiber concentration.
Post-Installation Safety
Once enclosed and sealed, glass wool poses no health risks. It does not emit volatile organic compounds (VOCs) and remains inert throughout its service life.
Environmental Safety
Made from up to 80% recycled glass, it is non-toxic, non-corrosive, and fully recyclable at end-of-life.
Install
Measure the Pipe
Accurately determine the pipe’s outer diameter and length to select the correct insulation size.
01
Cut and Fit
Pre-slit glass wool sleeves can be opened and wrapped around the pipe. For joints or bends, custom cutting may be required using a utility knife.
02
Seal Joints
Overlap seams and use aluminum foil tape or adhesive to seal gaps, preventing air infiltration and thermal bridging.
03
Secure the Insulation
Use stainless steel bands, plastic ties, or clamps at regular intervals (typically every 12–24 inches) to prevent slippage, especially on vertical runs.
04
Vapor Barrier
Apply a jacketing layer (e.g., aluminum foil, PVC, or elastomeric coating) to protect against moisture, particularly in humid or outdoor environments.
05
FAQ
We're well-known as one of the leading glass wool tube manufacturers and suppliers in China, featured by quality products and good price. Please rest assured to buy high-grade glass wool tube for sale here from our factory.
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