Rock Wool Tube Pipe (also known as Rock Wool Pipe Section or Shell) is a high-performance, pre-formed semi-rigid insulation material designed for thermal insulation of industrial and building piping systems. Manufactured from natural volcanic basalt rock, these cylindrical sections are precisely molded to fit standard pipe diameters, providing a continuous and effective thermal barrier.
Specifically engineered for superheated steam lines, maintaining structural integrity at +650℃. Widely used for both hot piping (e.g., steam and high-temperature lines) and cold piping applications, they minimize heat loss or gain, enhance energy efficiency, prevent condensation (when combined with appropriate vapor barriers), and provide personnel protection against hot surfaces.
| Product Performance | Enterprise Standard | National Standards | ASTM Standard |
|---|---|---|---|
| Shot content (Particle diameter ≥0.25mm) % | 4 | ≤7 | 4 |
| The average diameter of fibers (μm) | 4.2 | <6 | <7 |
| Thermal conductivity [W/(m·K)] Average temperature 70°C | ≤0.039 | ≤0.044 | ≤0.042 |
| Organic content % | 2.9 | ≤4.0 | — |
| Hydrophobic rate % | 99 | ≥98 | ≥98 |
| Combustion performance | Grade A | Grade A | Grade A |
| Chlorine ion content (ppm) | ≤10 | — | ≤25 |
| Heat load shrinkage temperature (°C) | 700 | ≥600 | ≥650 |
| Density tolerance % | ±5 | ±10 | ±10 |
Steam pipes are the high-pressure veins of your facility; treating them with anything less than a rigid rock wool section is like wearing a windbreaker in a blizzard. These tubes maintain a consistently low thermal conductivity, ensuring that steam stays at the required temperature over long distribution runs, which directly reduces fuel costs for your boilers.
Unlike flexible blankets that can settle or compress over time—especially on horizontal runs—rock wool pipe sections are rigid. They maintain their thickness and "concentricity" (staying centered on the pipe). This is crucial because if insulation sags, the top of the pipe loses heat while the bottom becomes over-insulated; these tubes ensure 360-degree uniform protection.
Manufactured from volcanic basalt, these pipes are naturally non-combustible. They can withstand continuous operating temperatures of up to 650°C without melting, off-gassing, or losing their structural shape. In the event of a facility fire, the insulation acts as a thermal shield for the piping system, providing critical extra time for emergency shutdowns.
One of the silent killers of industrial piping is moisture trapped against the metal. Rock wool is "breathable" and chemically neutral (very low chloride content). This allows any incidental moisture to evaporate rather than being trapped against the pipe surface, significantly reducing the risk of Corrosion Under Insulation (CUI) and extending the lifespan of your steel assets.
Labor is often the highest cost in an insulation project. These sections feature a pre-cut longitudinal slit that allows them to "snap" directly over the pipe.
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