Cold pipe supports come in a variety of types, primarily categorized by material and functional characteristics. Common types and their characteristics are listed below:
Classification by Material
1. Polyurethane Cold Pipe Support
High closed-cell ratio (≥95%), low thermal conductivity (≤0.027 W/m·K), and high compressive strength.
Excellent low-temperature resistance, with an applicable temperature range of -196°C to +120°C. Commonly used for cryogenic pipelines such as LNG and liquid nitrogen.
2. Polyisocyanurate (PIR) Cold Pipe Support
High fire rating (up to B1), superior high-temperature resistance to polyurethane, with an applicable temperature range of -180°C to +150°C.
High compressive strength and strong chemical stability make it suitable for low-temperature pipelines in the chemical and energy industries.
3. Foam Glass Cold Pipe Support
Made of inorganic material, it is non-flammable, moisture-proof, and corrosion-resistant, with an extremely wide applicable temperature range (-260°C to +430°C).
However, they are quite brittle and require protection from strong impact during installation. They are often used in special operating conditions involving alternating deep cold and high temperatures.
4. Red Pine Cold Insulation Pipe Support
Natural wood treated with corrosion and moisture-proofing has a low thermal conductivity and is relatively inexpensive.
Suitable for common low-temperature pipes operating at temperatures above -30°C, such as air conditioning chilled water systems.
5. Composite Cold Insulation Pipe Support
Outer layer of fiberglass or stainless steel (corrosion resistance and load-bearing properties), inner layer of polyurethane/PIR (thermal insulation).
Combining high strength with excellent thermal insulation, they are suitable for corrosive environments or for highly loaded pipes.
