Fiberglass Pipe Insulation: Reliable Thermal Protection for Every Pipe Network

Rubber-Plastic Pipe Insulation Manufacturer for HVAC & Building Thermal Works

Xiaolong makes fiberglass pipe insulation for HVAC contractors, industrial plants, and building projects that need dependable thermal control. Bare or poorly insulated pipes lose heat, sweat with condensation, and waste energy — problems that raise utility bills and can damage surrounding structures over time. Xiaolong solves this with fiberglass pipe insulation built to hold its shape, resist moisture, and perform across a wide temperature range, from chilled water lines to high-heat process pipes.

Every batch is manufactured under consistent quality control, so contractors and distributors get the same performance order after order. Xiaolong has supplied fiberglass pipe insulation to HVAC installers, mechanical contractors, and industrial buyers who need a factory partner they can count on for both standard stock and custom sizing.

Talk to our technical-sales team for custom fiberglass pipe insulation for your HVAC, commercial build, and industrial thermal needs.

Core Performance Advantages of Fiberglass Pipe Insulation

High-Density Fiber Structure

· Centrifugal glass fiber bonded with thermosetting resin for a stable, long-lasting core

· Density range of 40–120 kg/m³ to match different pressure and load requirements

Broad Working Temperature Range

· Rated for continuous use from -20℃ to 420℃, covering both chilled and high-heat pipe systems

· Stable thermal conductivity of 0.031–0.044 W/(m·K) across the service range

Low Moisture Uptake

· Fiber structure resists water absorption, helping prevent insulation breakdown over time

· Supports optional facing for added moisture and vapor control

Flexible Sizing for Fast Installation

· Inner diameters from 25–350 mm and insulation thickness from 25–150 mm

· Pre-slit cylindrical structure in standard 1000 mm piece lengths for quick on-site fitting

Multi-Surface Facing Options

· Available with silver-grey aluminium foil facing for extra surface protection

· Light-yellow fibrous tube base suits projects that need a simple, unfaced finish

Key Specifications

Typical Deployment Scenarios for Fiberglass Pipe Insulation

Commercial HVAC Pipe Networks

· Chilled water supply and return lines in office buildings and shopping centers

· Condensate piping where moisture control helps protect ceilings and walls

· Rooftop and mechanical-room piping runs exposed to temperature swings

Industrial Process Piping Systems

· Steam and hot-fluid lines in manufacturing plants

· High-temperature process piping up to 420℃ in factories and refineries

· Boiler-room piping that needs stable insulation under sustained heat

Public Utility Building Projects

· District heating and cooling pipe networks

· Hospital and school mechanical systems requiring consistent thermal performance

· Municipal water treatment facility piping

Energy-Saving Renovation Works

· Retrofitting older buildings with upgraded pipe insulation to cut energy loss

· Replacing degraded or wet insulation on existing HVAC lines

· Upgrading industrial piping insulation as part of energy-efficiency programs

Common Queries About Fiberglass Pipe Insulation

Can this insulation handle both hot and cold pipes?

Yes. It's rated for continuous use from -20℃ to 420℃, so it works on chilled water lines as well as high-temperature process and steam piping.

How is the insulation installed on-site?

Each piece comes pre-slit in a cylindrical structure at a standard 1000 mm length, so installers can fit it directly around pipe runs without extra cutting.

Is the material resistant to moisture?

The fiberglass core has low moisture uptake, which helps the insulation maintain its thermal performance over time compared to materials that absorb water easily.

Can Xiaolong produce custom sizes for a specific project?

Yes. Beyond standard stock dimensions, Xiaolong's technical-sales team works with buyers on custom diameters, thicknesses, and facing to match project specifications.

Source Fiberglass Pipe Insulation From Xiaolong Factory

Xiaolong combines consistent manufacturing quality with the flexibility to meet real project needs — custom specifications, bulk wholesale volumes, project tender support, and factory test documentation, all from one supplier. Whether you're insulating a commercial HVAC system, an industrial process line, or a full building renovation, Xiaolong's fiberglass pipe insulation is built to perform where it counts.

Reach out to Xiaolong's technical-sales team today to discuss your project specifications and get a custom fiberglass pipe insulation solution built for your needs.