Cryogenic PUR Pipe Shell Insulation 60 mm Thick For LNG Chemical Piping
Basic Properties
Trading Properties
| Product Name: | Cryogenic PUR Pipe Shell Insulation | Product Type: | Preformed Cryogenic PUR Pipe Shell |
|---|---|---|---|
| Core Material: | Rigid Polyurethane Foam, Closed Cell | Core Density: | 45 - 55 Kg/m3 (50 +/- 5) |
| Thermal Conductivity: | <= 0.023 W/(m.K) At 20 C | Compressive Strength: | >= 200 KPa |
| Water Absorption: | <= 5% Volumetric | Fire Performance: | GB 8624 Class B1, Self Extinguishing |
| Service Temperature: | -80 To 100 C | Wall Thickness: | 60 Mm |
| Pipe Size Range: | DN50 - DN500 | Application: | LNG And Chemical Cryogenic Pipe Insulation |
| Thermal Conductivity: | 0.022 - 0.028 W/m·K | Application: | Insulation For Roofs, Walls, Floors |
| Water Absorption: | < 1% By Volume | Environmental Impact: | CFC/HCFC Free, Recyclable |
| Density: | 30 - 40 Kg/m³ | Type: | Polyurethane Rigid Foam |
| Core Material: | Polyisocyanurate (PIR) | Fire Resistance: | Class B-s1,d0 (EN 13501-1) |
| Installation Method: | Adhesive Bonding, Mechanical Fixing | Operating Temperature Range: | -50°C To +120°C |
| Moisture Vapor Transmission: | Low Permeability | Compressive Strength: | ≥ 150 KPa |
| Panel Thickness: | 20 Mm To 200 Mm | Surface Facing: | Aluminum Foil, Glass Tissue, Or Kraft Paper |
| Dimensional Stability: | ≤ 1% Change |
Cryogenic PUR Pipe Shell Insulation 60 mm Thick for LNG Chemical Piping
Cryogenic PUR pipe shell insulation has to stay dimensionally stable when the pipe contracts sharply on cool down. The foam is moulded at fifty kilograms per cubic metre with a fine closed cell structure, so the shell flexes with the pipe instead of cracking at the butt joints during the first pull down.
Water absorption below five percent by volume is the key figure for LNG and chemical service, because any moisture that enters the foam will freeze and expand. Our cryogenic PUR pipe shell insulation is therefore supplied with a sealed vapour barrier and taped joints, and we recommend a factory applied cladding for outdoor cryogenic lines.
Because low temperature service punishes poor detailing more than poor foam, we review the support spacing, the contraction allowance and the joint layout with your engineer. That review is part of the quotation, not an extra, and it is why our shells hold up on terminals that run continuously for years.
Each shipment carries a joint schedule keyed to line numbers, so the crew can match each section to the correct pipe run. Where lines run outdoors the shells are supplied pre-clad with aluminium, and a system tested to minus 80 C is available on request.
Key Advantages
- Moulded shells stay stable through sharp cool down
- Closed cell foam with water absorption below five percent
- Rated for service from minus 80 to 100 C
- Sealed vapour barrier prevents ice formation in the foam
- Supplied with contraction allowance guidance for LNG lines
- Factory made elbows and tees match the straight sections
Technical Specifications
| product name | Cryogenic PUR Pipe Shell Insulation |
| Product Type | Preformed cryogenic PUR pipe shell |
| Core Material | Rigid polyurethane foam, closed cell |
| Core Density | 45 - 55 kg/m3 (50 +/- 5) |
| Thermal Conductivity | <= 0.023 W/(m.K) at 20 C |
| Compressive Strength | >= 200 kPa |
| Water Absorption | <= 5% volumetric |
| Fire Performance | GB 8624 Class B1, self extinguishing |
| Service Temperature | -80 to 100 C |
| Wall Thickness | 60 mm |
| Pipe Size Range | DN50 - DN500 |
| Application | LNG and chemical cryogenic pipe insulation |
Typical Applications
- LNG transfer and loading lines
- Ethylene and propylene piping
- Chemical plant cryogenic circuits
- Cold box piping
- Refrigerated storage pipework
- Air separation plant lines
Frequently Asked Questions
Q: How low a temperature can the shell take?
A: Service range is minus 80 to 100 degrees, and the shell is checked for contraction at the lowest design temperature.
Q: Is a vapour barrier necessary?
A: For cryogenic duty it is essential, because moisture in the foam freezes and cracks the cell structure.
Q: Can sections be supplied pre-clad?
A: Yes, with aluminium or stainless cladding applied in the factory for outdoor and terminal service.
Q: How do you handle pipe contraction?
A: We provide a joint layout with contraction allowances, and expansion joints are included where runs exceed thirty metres.
MYREAL supplies cryogenic PUR pipe shell insulation from Shanghai to projects in Europe, the Middle East and Southeast Asia. Contact our technical team for datasheets, samples and container plans.
Contact Person: Mrs. Betsy Ouyang
Tel: +86 17740800950
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