Glass Wool Pipe Insulation | Preformed Fiberglass Pipe Sections – Factory Direct
  • Glass wool pipe insulation sections for HVAC and industrial piping systems by Liluan Technology
  • Three preformed glass wool pipe sections clean product shot – lightweight thermal & acoustic insulation by Liluan Technology
  • Long glass wool pipe section with red clamp ready for installation, forklift in background – industrial thermal insulation by Liluan Technology
  • Hundreds of preformed glass wool pipe sections neatly arranged in warehouse – lightweight thermal & acoustic insulation stock by Liluan Technology
  • Large shipment of glass wool pipe sections loaded on red container truck – preformed lightweight thermal & acoustic insulation ready for export by Liluan Technology
  • Three glass wool pipe sections with aluminum foil vapor barrier jacket – preformed thermal & acoustic insulation by Liluan Technology
  • Glass wool pipe insulation sections for HVAC and industrial piping systems by Liluan Technology
  • Three preformed glass wool pipe sections clean product shot – lightweight thermal & acoustic insulation by Liluan Technology
  • Long glass wool pipe section with red clamp ready for installation, forklift in background – industrial thermal insulation by Liluan Technology
  • Hundreds of preformed glass wool pipe sections neatly arranged in warehouse – lightweight thermal & acoustic insulation stock by Liluan Technology
  • Large shipment of glass wool pipe sections loaded on red container truck – preformed lightweight thermal & acoustic insulation ready for export by Liluan Technology
  • Three glass wool pipe sections with aluminum foil vapor barrier jacket – preformed thermal & acoustic insulation by Liluan Technology

Glass Wool Pipe Section – Preformed Lightweight Thermal & Acoustic Insulation

No.LL-GWP-01

Glass Wool Pipe Section is a preformed tubular insulation material produced using advanced centrifugal blowing technology. Molten glass is fiberized into ultra-fine filaments, sprayed with eco-friendly thermosetting resin binders, and heat-cured into rigid, cylindrical sections precisely shaped to standard pipe diameters.
It is the ideal solution for thermal and acoustic insulation of various pipeline systems, including heating, hot water, steam, chilled water, and refrigeration lines in industrial plants, commercial buildings, HVAC systems, and residential projects.

Density: 40-96kg/m3
Length: 1m
Inner Diameter: 22~1220mm
Thickness: 25-100mm
Brand: DONGWUTIANZI or OEM
(Size can be customized)

 

  • Glass wool pipe insulation sections for HVAC and industrial piping systems by Liluan Technology
  • Three preformed glass wool pipe sections clean product shot – lightweight thermal & acoustic insulation by Liluan Technology
  • Long glass wool pipe section with red clamp ready for installation, forklift in background – industrial thermal insulation by Liluan Technology
  • Hundreds of preformed glass wool pipe sections neatly arranged in warehouse – lightweight thermal & acoustic insulation stock by Liluan Technology
  • Large shipment of glass wool pipe sections loaded on red container truck – preformed lightweight thermal & acoustic insulation ready for export by Liluan Technology
  • Three glass wool pipe sections with aluminum foil vapor barrier jacket – preformed thermal & acoustic insulation by Liluan Technology

Description


Our high-performance glass wool pipe insulation is a premium pre-formed solution for thermal and acoustic control of piping systems. Made from rigid, uniformly structured fiberglass fibers, these glass wool pipes and fiberglass pipe sections deliver consistent, durable performance while meeting international safety and quality standards.

Core Features & Benefits

1) Exceptional Thermal Performance

Provides outstanding insulation for both hot and cold pipelines, effectively reducing heat loss and unwanted heat gain. The stable fiber structure ensures long-term thermal efficiency and lowers system energy consumption.

2) Superior Acoustic Absorption

Effectively reduces noise transmission in piping systems. The porous fiberglass matrix dampens airborne and structure-borne noise generated by fluid flow and equipment operation, improving surrounding environmental comfort.

3) High Fire Resistance

Non-combustible with a Class A1 fire rating and excellent thermal stability. Complies with strict fire safety requirements, making it a safe choice for high-demand industrial and commercial projects.

4) Wide Temperature Range

Performs reliably across an operating temperature range of -40°C to +500°C, adapting seamlessly to both low-temperature refrigeration and high-temperature process piping applications.

5) Moisture & Corrosion Resistant

Non-hygroscopic, odorless, moisture-proof, and radiation-resistant. The material retains its thermal and structural integrity in damp environments, and helps protect underlying metal pipes from moisture-induced corrosion.

6) Versatile Installation

Lightweight and easy to handle and cut on site, suitable for both exposed and concealed applications. Pre-formed fiberglass pipe sections allow fast, flexible installation on new or existing pipelines.

Applications

Our glass wool pipe insulation is optimized for the following core application scenarios:
  • Industrial Process Piping
    Suitable for steam distribution networks, high-temperature process lines, and industrial fluid transport systems. These glass wool pipes maintain stable thermal performance under continuous high-temperature operation, reducing energy waste and supporting steady production efficiency.

  • Commercial HVAC & Plumbing
    Designed for HVAC systems, domestic hot water lines, and chilled water piping in commercial buildings. Our fiberglass pipe sections prevent condensation and mold growth on cold lines, minimize heat loss on hot water systems, and dampen plumbing noise to enhance indoor environmental quality.

  • Glass wool pipe sections installed on steel pipes with black protective jacket – real thermal & acoustic insulation application by Liluan Technology
  • Enhance your insulation solutions with Liluan Technology's glass wool blanket. Contact us today to learn more about our glass wool insulation products and how they can meet your thermal and acoustic requirements.

    About Us
    Leading Rock Wool Manufacturer with Proven Industry Expertise
    Founded in 2009, Anhui Liluan Technology Co., Ltd. stands as a trusted name in mineral wool insulation manufacturing. We specialize in producing high-performance rock wool boards, blankets, and pipe insulation materials widely used in construction, industrial, and agricultural applications. With over 15 years of focused development, Liluan combines advanced manufacturing knowledge with strict quality standards, supporting global partners in achieving better thermal, fire, and sound performance.

    Fully Integrated Production Lines Backed by Stringent Quality Control
    Our production base operates cutting-edge automated lines designed to maximize efficiency and ensure uniform quality. Each stage of the process—from raw material selection to final product packaging—is subject to rigorous inspections, meeting ISO 9001 and CE certification standards. Our integrated systems enable large-volume, custom-dimension production that adapts seamlessly to specific project requirements, ensuring both product performance and cost-efficiency.

    Scalable Output with Global Market Reach
    With an annual output capacity sufficient to serve large-scale international contracts, Liluan is well-positioned to support long-term industrial supply chains. Our export network spans across Europe, the Middle East, Southeast Asia, and the Americas, reflecting a proven ability to deliver quality consistently and on time. Customers rely on our flexible logistics and responsive support team to simplify procurement and ensure reliability in every delivery.

    Commitment to Sustainable Manufacturing and Customer-Centric Service
    Sustainability is embedded in our manufacturing processes—from energy-efficient kilns to the use of recyclable packaging. Our products enhance building insulation performance, contributing to energy conservation and carbon emission reduction. We offer personalized pre-sale consultation, technical support, and post-sale assistance, aligning every project with client goals. Whether you are sourcing for infrastructure, OEM supply, or retail channels, Liluan is your capable and responsible partner in insulation solutions.
    Factory worker wrapping aluminum foil on glass wool pipe section – manufacturing preformed lightweight thermal & acoustic insulation by Liluan Technology

FAQ

1. Who are we?

Anhui Liluan Technology Co., Ltd. is an industrial manufacturer specializing in thermal and acoustic insulation materials since 2009. Our production facility manufactures high-performance rock wool, glass wool, and ceramic fiber solutions, supplying standard and customized insulation variants to the global industrial processing, commercial construction, and HVAC sectors.

2. What are the structural and manufacturing advantages of Liluan glass wool pipe sections?

As a direct manufacturer operating automated production lines, we ensure precise concentricity and uniform density across every section. Unlike standard manual or secondary-processed variants, our pipes feature highly accurate Internal Diameters (ID) ranging from 22 mm to 1220 mm. This precision manufacturing ensures a tight, flush fit onto standard steel, copper, or PVC piping, eliminating longitudinal gaps and preventing localized thermal bridging.

3. What temperature ranges and applications are these pipe sections engineered for?

Our glass wool pipe insulation is rated for operating temperatures up to 440°C (824°F). It is primarily specified for:

  • HVAC & Commercial Plumbing: Chilled water lines and hot water distribution systems to prevent ambient condensation and freezing.

  • Industrial Processing: Low-to-medium pressure steam lines, district heating networks, and chemical plant process piping to minimize thermal energy loss.

4. What sizing, thickness, and facing options are available for industrial projects?

We provide comprehensive dimensional and material customization to match engineering datasheets:

  • Dimensions: Wall thicknesses from 25 mm to 100 mm to meet specified thermal resistance ($R$-values).

  • Facings: Available bare or factory-laminated with Reinforced Aluminum Foil (ALU) or Foil-Scrim-Kraft (FSK) to serve as an integrated moisture vapor barrier.

  • Design: Each section is produced with a pre-slit longitudinal seam, allowing a rapid "snap-on" installation that minimizes on-site labor time.

5. What services can we provide?

We support international procurement workflows with a comprehensive service matrix:

  • Technical Compliance: Material parameter verification against project engineering specifications (density, thermal conductivity, fire ratings).

  • Sample Logistics: Provision of standard-sized samples for material testing and physical verification.

  • Export Packaging Optimization: Rigid, moisture-resistant packaging and palletization designed to maximize container space and reduce per-unit ocean freight costs.

  • Logistics Dispatch: Streamlined customs clearance and shipping coordination via Nanjing, Wuhu, or Shanghai ports.