LNG cold cryogenic insulation PIR ASTM C591 polyisocyanurate pipe insulation polyisocyanurate pipe insulation
Cold Insulation PIR Pipe Section
Product Introduction
PIR-Polyisocyanurate foam is a new professional cryogenic insulation material. It' s better than common polyurethane foam both in physical properties and fireproof performance especially on cold insulation effects and fire retarding performance.
Products Advantages
1. Thermosetting material with high level of combustion retarding, meeting B1 Fireproof Grade of the national standard GB8264
2. Low thermal conductivity excellent cold insulation effects with temperature ranging
3. It features fluorin-free, environment-friendly, anti-corrosive, anti-mold and etc.
4. High mechanical strength, dimensional stability and durable life
5. NC Mechanical cutting in advance various thicknesses for cold insulation requirements
Application
PIR can be used in adiabatic demand of pipelines and equipment within -196℃~+150℃, it also provides the best efficient and stable cold insulation effects for Liquefied Nitrogen (LN(0),-196℃),Liquefied Natural Gas (LNG,-162℃),Liquefied Ethylene (LEG,-104℃).
Technical Data
Item | Unit | Technical Data | Testing Method | |
Density | kg/m3 | ≥40 | ASTM D1622 | |
Thermal Conductivity at Ambient Temperature (180 Days Aged ) | W/(m·K) | ≤0.029 (+40℃) | ASTM C177 | |
≤0.027 (+20℃) | ||||
≤0.024 (0℃) | ||||
≤0.025(-30℃) | ||||
≤0.024(-50℃) | ||||
≤0.021(-100℃) | ||||
≤0.019 (-120℃) | ||||
≤0.016 (-160℃) | ||||
Compressive Strength (All Directions) | +23℃ | kPa | ≥200 | ASTM D 1621 |
-165℃ | ≥280 | |||
Tensile Strength (All Directions) | +23℃ | kPa | ≥320 | ASTM D 1623 |
-165℃ | ≥265 | |||
Flame Spread Index |
| less than25 | ASTM E84 | |
Water Absorption by Vol | % | ≤5 | ASTM D2842 | |
Water Vapor Permeability | ng/(Pa·s·m) | ≤5.1 | ASTM E96 | |
Closed Cell Content | % | ≥95 | ASTM D6226 | |
Linear Thermal Expansion Coefficient | m/(m·K) | ≤70×10-6 | ASTM D696 | |
PH Value |
| 5.5-7 | ASTM C871 | |
Chloride Content |
| Max 60mg/kg(ppm) | ASTM C871 | |
Elasticity Modulus | MPa | At -165 °C, in all directions max 16 MPa | ASTM D1623 | |
Poisson's ratio |
| At -165°C: 0.4 | ||
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