Rock Wool Thermal Insulation Pipes

Product Introduction

Rock Wool Pipe is a high-efficiency thermal insulation material made primarily from natural basalt through high-temperature melting, centrifugal fiberization, curing, and molding processes. Featuring excellent thermal insulation performance, superior fire resistance, outstanding chemical stability, and convenient installation, it has become the preferred solution for insulating industrial pipelines, HVAC systems, and equipment piping.

Our Rock Wool Pipes are manufactured using advanced production technology and strict quality control systems, offering a complete range of insulation solutions from cryogenic to high-temperature applications to meet various operating conditions and project requirements.

In addition, Rock Wool Pipes can be combined with glass wool, ceramic fiber, and other insulation materials to form composite insulation pipe sections tailored to specific customer needs.

Product Composition

Main Raw Materials

Selected natural basalt rock

Appropriate amount of mineral slag

Binder System

Environmentally friendly phenolic resin binder

No harmful substance release under high-temperature operating conditions

Manufacturing Technology

Internationally advanced four-roller centrifugal fiberizing process

Uniform, long, and fine fibers

Product Structure

Three-dimensional interwoven fiber structure

Stable internal air-pocket layer for enhanced insulation performance

Product Features

1. Outstanding Thermal Insulation Performance

Low thermal conductivity: 0.034–0.044 W/(m·K) (mean temperature 70°C ± 5°C)

Operating temperature range: -268°C to 700°C

Excellent thermal stability without shrinkage or deformation

Reduces heat loss by more than 80%

2. Excellent Fire Safety Performance

Class A1 non-combustible material

Complies with GB/T 8624 highest fire protection classification

Maintains structural integrity at temperatures up to 650°C

No molten dripping when exposed to fire

3. Superior Chemical and Physical Properties

Excellent corrosion resistance against most chemicals

pH value: 7–8.5

Water repellency ≥98%

Low moisture absorption and stable insulation performance

Good vapor permeability, preventing condensation accumulation

Excellent dimensional stability

Linear shrinkage <1% after high-temperature testing

4. Easy Installation

Factory-prefabricated tubular structure

Easy cutting and adjustment using a utility knife

Tight fitting around pipe surfaces to minimize thermal bridging

Certain systems allow removal and reinstallation

5. Environmental Protection and Durability

Asbestos-free and environmentally friendly

Service life of 15–20 years under normal operating conditions

Recyclable material

Low maintenance requirements

Applications

Petrochemical pipeline insulation

Industrial boilers and district heating networks

HVAC duct insulation

Heating and hot water pipelines

Marine piping systems

Laboratory special piping systems

Storage tank and reactor connecting pipelines

Technical Specifications

Note: For additional specifications, please consult our sales team.

About SUNTHERM

Zibo Soaring Refractory & Insulation Materials Co., Ltd, founded in 1993, is a professional manufacturer of insulation materials. The company's brand SUNTHERM, approved and registered by the State Trademark Bureau, in which "SUN" symbolizes sustainable power and environmental protection, and "THERM" embodies service attitude and innovative spirit. The factory covers an area of 180,000 square meters and has 46 production lines with an annual production capacity of 600,000 tons, advanced equipment, optimized processes, low energy consumption and customized production. The company also produces manufacturing lines and has an independent R&D team with well-designed products.

SUNTHERM's main products: ceramic fiber products, bio-soluble fiber products, rock wool products, new fiber material products. The production line covers ceramic fiber blanket, board, paper and rock wool production line. The products are widely used in industrial high-temperature furnaces, household appliances, pipelines, stoves, ovens, energy storage batteries, HVAC and so on. Our business continues to expand, and our products are exported to more than 80 countries and regions such as Europe, North America, the Middle East, Southeast Asia and Latin America.

Why choose us?

●  Experienced: professional manufacturer of thermal insulation materials with 32 years of manufacturing experience and 19 years of export experience in ceramic fibre field.

●  High quality: strict manufacturing process and quality assurance

●  Good service:According to the specific needs of customers, we provide personalised customised service to meet the requirements of different application scenarios.

●  OEM:Support OEM processing

●  Fast delivery: large and stable production volume, fast delivery

●  Competitive price: years of commitment to international trade system construction, the establishment of the most powerful supply chain, can provide the most competitive prices

SUNTHERM has passed a variety of industry certification tests, such as CE, SGS, ASTM, ISO9001-2000, SASO, ROHS, BV, MSDS and so on.

Customer Visit

Packaging Display

SUNTHERM has a team of professionals and extensive experience in customising packaging for a wide range of products.

Related Products

FAQ：

Q1: What is the maximum operating temperature of Rock Wool Pipe?

A: The long-term safe operating temperature of our Rock Wool Pipe can reach up to 700°C, with short-term temperature resistance up to 750°C. The actual temperature limit may vary slightly depending on product density. We offer a complete temperature range suitable for applications from -268°C to 700°C.

Q2: How does Rock Wool Pipe perform in humid environments?

A: Our Rock Wool Pipe features a water repellency rate of ≥98%, maintaining extremely low water absorption even in humid environments. For long-term immersion or extremely humid conditions, we recommend using an additional moisture barrier. Composite products with aluminum foil facing are also available.

Q3: How do I choose the appropriate density?

A: Density selection depends primarily on:

Operating temperature (higher temperatures generally require higher densities);

Pipe diameter (smaller pipes typically benefit from higher-density insulation);

Mechanical strength requirements.

Our technical team can provide professional selection recommendations.

Q4: What are the installation steps?

A: Basic installation procedure:

Clean the pipe surface.

Measure the pipe dimensions and cut the insulation if necessary.

Place the Rock Wool Pipe around the pipe and align the seam.

Secure with insulation tape or metal bands.

Stagger joints when installing multiple insulation layers.

Install the outer protective cladding.

Detailed installation manuals and video tutorials are available upon request.

Q5: Is Rock Wool Pipe safe for human health?

A: Our Rock Wool Pipe utilizes advanced biosoluble fiber technology. The fibers can naturally dissolve and be removed from the lungs, eliminating long-term health risks associated with asbestos. The product complies with environmental and occupational health standards. Basic protective equipment is recommended during installation.

Q6: How are irregular pipe fittings such as valves and flanges insulated?

A: For valves, flanges, elbows, and other irregular components, we provide:

Custom-shaped insulation covers

Removable insulation jackets

On-site cutting and assembly solutions

Fabrication using Rock Wool Boards

Our technical team can design the most suitable insulation solution based on your specific application.

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