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Polyisocyanurate PIR Pipe Insulation Wide Operating Temperature Range

Place of Origin Changzhou, Jiangsu,China
Brand Name Kaff Rees
Certification SGS
Minimum Order Quantity 20 Cubic Meters
Price Negotiable
Packaging Details Carton packaging/Wooden case packaging/according to the requirements
Delivery Time Negotiable
Payment Terms EXW/FOB/CIF
Supply Ability According to products
Product Details
Name Polyisocyanurate PIR Pipe Insulation Feature Wide Operating Temperature Range
Cold Insulation Material Polyisocyanurate PIR PH Value 5.5-7
Service Temp. -196~+120℃ Application Low Temperature Industries
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Product Description
Polyisocyanurate (PIR) Pipe Insulation with Wide Operating Temperature Range
PIR (Polyisocyanurate) foam is an advanced professional cryogenic insulation material offering superior physical properties and fireproof performance compared to standard polyurethane foam, particularly in cold insulation effects and fire retarding capabilities.
Key Features
  • Fire resistance rated as B1
  • Operating temperature range: -196℃ to +120℃
  • Excellent dimensional stability
  • Customizable cutting in panels and pipes to meet specific requirements
Technical Properties
Item Unit Technical Data Test Mode
Density kg/m³ ≥40 ASTM D1622 / ISO 845
Thermal Conductivity W/(m·K) ≤0.035 (+100℃)
≤0.029 (+50℃)
≤0.025 (+10℃)
≤0.024 (0℃)
≤0.023 (-50℃)
≤0.022 (-100℃)
≤0.017 (-150℃)
≤0.016 (-170℃)
ASTM C177
Compressive Strength kPa +23℃: ≥200
-165℃: ≥280
ASTM D 1621
Tensile Strength kPa +23℃: ≥320
-165℃: ≥265
ASTM D 1623
Flame Spread Index ﹤25 ASTM E84
Oxygen Index ≥30 GB/T 2406.2
Water Absorption by Vol. % ≤2 ASTM D2842
Water Vapor Permeability ng/(Pa·s·m) ≤5.5 ASTM E96
Closed Cell Ratio % ≥95 ASTM D6226
Lineal Thermal Expansion Coefficient m/(m·K) ≤70×10⁻⁶ ASTM D696
PH Value 5.5-7 ASTM C871
Chloride Content ppm ≤60 GB/T 11835
Elastic Modulus MPa ≤16 ASTM D1623
Service Temp. -196~+120
Applications
PIR is an ideal organic low-temperature insulation material featuring small thermal conductivity and high dimensional stability. Suitable for a wide temperature range, it is extensively used in LNG, ethylene, cold storage, and other low-temperature industrial applications.
Typical PIR Insulation System Structure
PIR insulation system structure diagram
  1. PIR Shell: inner layer + middle layer (if necessary) + outer layer
  2. Secondary Vapor Barrier: PAP aluminum foil
  3. Main Vapor Barrier: mastic + fiberglass meshes + mastic
  4. Metal Protective Layer: aluminum alloy plate, stainless steel plate, aluminized steel plate, GRP
  5. Sealant: HS-10-02, Foster 95-50, etc
  6. Strapping Material: stainless steel tape, sub sensitive tape
Packing and Storage
  • Store in a dry, lightproof, shady, and ventilated area away from heat sources and protected from sun exposure
  • Inner packaging: black polyethylene bags; Outer packaging: cartons
Handling Cautions
  • Handle PIR gently, avoiding rolling, collision, and heavy pressure during movement
  • When applied to pipe and equipment insulation, secure PIR with glass fiber tape or steel bands
  • Use a saw for cutting during application
Production Flow
PIR production flow diagram