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Our plain glass‑wool pipe shell is pre‑formed cylindrical insulation without aluminium‑foil facing, manufactured from centrifugal spun fine glass fibre bonded with eco‑friendly resin adhesiveMade-in-Ch.... Countless micro‑air pockets inside the loose fibre structure bring low thermal conductivity for outstanding heat retention and cold‑loss prevention. Rated A1‑grade non‑combustible, the inorganic glass‑fiber material resists flame spread, mildew, mould and chemical corrosion and will never erode metal pipeline surfaces.
This lightweight, soft‑textured fiberglass tube possesses reliable sound‑absorbing capability to cut down pipeline vibration and running noise. Without outer foil covering, it keeps good air permeability, perfect for well‑ventilated indoor pipe‑works. Workers can easily cut, split and fit the pipe shell onto pipelines with basic hand‑tools, which greatly cuts on‑site installation labour expense.
Custom‑made inner diameter, thickness, length and density (40‑64kg/m³) are available to match your project requirements. The formaldehyde‑free option is supplied for hospitals, hotels and residential construction. Suitable for hot‑water pipelines, chilled‑water pipes, indoor HVAC piping, factory equipment tubing and ventilation accessories. As a direct factory supplier, we provide stable bulk supply and competitive wholesale price for insulation contractors, building‑material dealers and industrial purchasers.
The intertwined glass‑fiber framework of glass wool pipe locks plenty of still air inside. Its thermal conductivity reaches 0.036‑0.038 W/m·K under 25℃ with excellent thermal resistance. It slows down heat loss of hot‑water pipes and cold‑water condensation of chilled‑water pipelines. The material lowers temperature exchange and cuts the energy consumption of your HVAC and industrial pipe systems.
Made of inorganic glass fibre whose melting point exceeds 700℃, our pipe shell conforms to Euroclass A1/A2 non‑combustible standard EN 13501‑1. It keeps stable under high‑temperature working conditions. It will not fuel burning or discharge poisonous smoke. It hinders flame propagation and fits piping projects of high‑rise buildings, medical centres and schools.
Porous tangled‑fiber structure absorbs pipeline vibration and running‑flow noise. It cuts down mechanical resonance noise inside ventilation and equipment pipelines, delivering quiet operating surroundings for commercial buildings and factory workshops.
This flexible cylindrical glass‑wool shell is lightweight and easy to cut into required sizes with simple hand‑held tools. No complicated processing is needed during construction, greatly saving your on‑site labour‑hour expense. Custom‑built inner diameter, wall thickness and bulk‑density options are available.
The inorganic raw material resists mould, mildew and chemical corrosion. It will not erode metal pipe surfaces. Formaldehyde‑free formula is optional for environmentally‑friendly residential and public‑building pipe‑insulation jobs.
| Key Attributes | Details |
|---|---|
| Material | Glass fibre |
| Type | Pipeline Thermal Insulation Material |
| Product Name | Un‑faced Glass Wool Insulation Pipe |
| Insulation R‑value | R4 |
| Standard Size | Custom‑made inner diameter, thickness 30‑100mm, customizable length |
| Density | 40–64 kg/m³(customizable, tolerance ±10%) |
| Shape | Cylindrical pipe shell, slit‑cut for convenient pipe installation |
| Eco Friendly | Yes, formaldehyde‑free formula optional |
| Design Style | Industrial building insulation |
| Thermal Conductivity | 0.036‑0.038W/m·K (@25℃); 0.042‑0.044W/m·K (@70℃) |
| Color | Natural yellow |
| OEM | Accept OEM Service |
| Brand Name | Zhongjia |
| Place of Origin | Guangdong,China |
| Function | Sound absorption, heat preservation, condensation‑proofing for HVAC piping |
| After‑sale Service | Online Technical Support, Onsite Installation Guidance |
| Packing | PE Bag |
| Warranty | 1 Year |
| Facing options | Un‑faced (also optional aluminum foil, kraft paper, glass‑mesh facing) |
| Recommended continuous operating temperature | ≤250°C |
| Maximum service temperature | 300‑400°C |
| Reaction to fire | Euroclass A1/A2 (non‑combustible) (EN 13501‑1) |
| Melting point | ＞700°C (glass fibres) |
| 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 treatment available |
Un‑faced glass wool insulation pipe shell serves as dedicated pipeline thermal‑insulation and sound‑absorbing material for HVAC, commercial construction and industrial sectors. Its main application fields are listed below:
Fitted onto ventilation ducts, chilled‑water and hot‑water pipelines inside commercial buildings, hotels and shopping malls. It lessens heat loss and prevents pipe‑surface condensation, stabilizing pipeline operating temperature and cutting air‑conditioning power‑supply consumption.
Suitable for circulating‑water pipelines, equipment connecting pipes and low‑temperature industrial tubing within factory workshops and machine rooms. It isolates high‑temperature pipe surfaces, lowers thermal waste and absorbs machinery‑pipeline vibration noise.
Deployed for plumbing and ventilation piping of high‑rise apartments, hospitals, schools and theatres. Its A1‑grade non‑combustible property meets strict fire‑safety requirements for public‑area concealed piping.
The porous glass‑fiber structure absorbs airflow‑generated humming and pipeline resonance noise. It keeps quiet surroundings for offices, recording rooms and entertainment venues.
This formaldehyde‑free eco‑friendly insulation material matches low‑energy‑consumption building standards. It cuts long‑term energy expenditure of heating‑and‑cooling pipe systems for sustainable‑construction projects.
We deliver one‑stop customization service for un‑faced glass wool insulation pipe shell to match your pipeline‑construction and engineering‑project requirements:
Size Customization: Custom‑fabricate inner diameter, wall‑thickness (25‑150mm) and overall length based on construction drawings and on‑site pipeline specifications;
Performance Customization: Adjust bulk density and fine‑fiber structure for projects requiring specialized heat‑retention, anti‑condensation or high‑grade noise‑absorbing performance;
Facing Customization: Multiple outer‑surface choices including plain un‑faced, aluminum foil, kraft paper and glass‑mesh cladding to upgrade moisture‑proof, flame‑resistant and tear‑resistant properties;
OEM Service: Offer logo branding, bespoke packaging and parameter tuning for bulk‑size orders, catering to overseas building‑material wholesalers and HVAC engineering contractors.
Our professional after‑sales team provides comprehensive assistance for wholesale buyers and construction‑project partners. We supply online technical parameter consultation, installation guidance and construction‑skill suggestions. Product inspection reports, fire‑safety certification documents and material test records are available upon request. Quick‑response communication handles bulk‑order inquiries, delivery‑schedule adjustment and on‑site problem troubleshooting. We commit to a 1‑year product warranty and long‑term technical support for all of our cooperative B‑side customers.
Q1: Why is the un‑faced glass wool insulation pipe great at noise reduction?
A: Its tangled porous glass‑fiber structure delivers a sound‑absorption coefficient (αw) of 0.8‑1.0 within 1000‑4000 Hz when the wall‑thickness reaches 50 mm or thicker. It consumes airflow vibration energy inside pipelines, cuts airflow humming, weakens pipeline resonance noise and reduces structure‑borne noise transmitted by metal piping.
Q2: Which specifications can I customize for the glass‑wool pipe shell?
A: Inner diameter, thickness (30‑100mm) and overall length are customizable. Adjustable bulk‑density ranges 40‑64 kg/m³. Multiple facing choices are available: un‑faced, aluminium foil, kraft paper and glass mesh cladding. OEM branding and custom‑sized bulk orders are also supported.
Q3: What fire‑safety certification does this insulation pipe meet?
A: It reaches Euroclass A1/A2 non‑combustible grade under standard EN 13501‑1. The inorganic glass fibre features a melting‑point higher than 700°C. It will not burn or release harmful toxic smoke under high‑temperature pipeline‑operating conditions. The recommended long‑term working temperature ≤250°C and peak‑resistant temperature reaches 300‑400°C.
Q4: Is the plain unfaced glass wool pipe suitable for damp pipeline environments?
A: Our base material owns over 98‑percent moisture‑resistance performance, and 24‑hour water absorption ≤0.5 kg/m². We can supply hydrophobic‑treated glass wool pipe‑shells. For severely‑humid piping locations, the aluminium‑foil facing version is strongly recommended for enhanced vapour‑barrier capability.
Q5: What kinds of pipeline projects fit this unfaced glass‑wool insulation pipe?
A: It works for HVAC chilled‑water & hot‑water piping, industrial‑workshop process pipelines, concealed public‑building ventilation pipes, high‑rise residential plumbing and acoustic‑requirement ventilation lines for theatres and studios. It is most suitable for well‑ventilated indoor pipe‑shaft environments without compulsory outer‑vapour‑barrier demands.
