Rock Wool Pipe Insulation for HVAC Pipes and Ducts Thermal and Acoustic Protection

Our Rock Wool Pipe Insulation is a high-performance thermal and acoustic insulation solution engineered for pipes, ducts, and cylindrical equipment in HVAC, industrial, and commercial applications. Manufactured from natural volcanic rock such as basalt and dolomite, the raw materials are melted at approximately 1500°C and centrifuged into fine fibers, then formed into rigid pipe sections through a controlled process involving pendulum laying, pleating, pressurization, and curing.

With density options ranging from 60kg/m³ to 200kg/m³, our rock wool pipe sections deliver exceptional thermal insulation, fire prevention, moisture resistance, and noise reduction, making them ideal for demanding environments where safety, energy efficiency, and acoustic performance are critical.

Each pipe section is produced under strict quality control protocols, ensuring consistent density, dimensional accuracy, and reliable performance at continuous operating temperatures up to 650°C, with a melting point exceeding 1000°C. The material is hydrophobic treated (≥98% water repellence), non-combustible (Class A1), and contains no asbestos or CFCs, providing a safe, durable, and environmentally responsible insulation solution.

• Superior Fire Resistance: Class A1 non-combustible material with a melting point exceeding 1000°C. Flame Spread Index = 0 and Smoke Developed Index = 5 (ASTM E84), providing critical fire protection for pipe and duct systems in high-risk environments.
• Excellent Thermal Insulation: Low thermal conductivity (≤0.040 W/m*K at 25°C) ensures effective heat retention, minimizes energy loss, and significantly reduces operational costs in both hot and cold piping systems.
• Outstanding Acoustic Performance: Noise Reduction Coefficient (NRC) ≥0.6 effectively reduces noise transmission from mechanical piping systems, creating a quieter working environment in commercial and industrial facilities.
• Water Repellent & Moisture Resistant: Advanced hydrophobic treatment (≥98% water repellence) prevents water absorption, maintaining insulation performance even in humid conditions and preventing corrosion under insulation (CUI).

• HVAC Systems: Thermal insulation for heating, ventilation, and air conditioning pipes and ducts in commercial buildings, hospitals, hotels, shopping malls, and data centers.
• Industrial Piping: Thermal insulation for hot and cold pipelines in power plants, refineries, chemical processing plants, and petrochemical facilities where high temperatures and corrosive environments are common.
• Fire Protection Systems: Fire-rated pipe insulation for critical safety systems, including fire sprinkler risers, emergency water supplies, and smoke extraction ducts requiring passive fire protection.

A: Our rock wool pipe insulation is designed for continuous service temperatures up to 650°C (1200°F) per ASTM C411, with a melting point exceeding 1000°C. This makes it suitable for high-temperature steam pipes, industrial process lines, and fire-rated applications where other insulation materials would fail.

A: Yes. Our rock wool pipe insulation features advanced hydrophobic treatment with ≥98% water repellence, preventing water absorption and maintaining thermal performance even in humid or outdoor conditions. For extended outdoor exposure, we recommend adding a protective cladding or weatherproof jacketing.

A: Density selection depends on your specific mechanical strength requirements and operating conditions. 60-100kg/m³ is suitable for general HVAC and light-duty applications. 120-150kg/m³ offers balanced performance for most industrial piping. 160-200kg/m³ provides maximum compression and tensile strength for high-load or demanding industrial environments. Please provide your design specifications for a tailored recommendation.