King flex flexible ultra-low temperature insulation system belongs to the multi-layer composite structure, is the most economical and reliable cooling system. The system can be directly installed under the temperature as low as -110°C on all piping equipment when the surface temperature of the pipe is lower than -100 °C and the pipeline usually has obvious repeated movement or vibration.
ULT Sheet Standard Size
| Code |
Thickness (mm) |
Length (m) |
M² / Bag |
| KF-ULT-25 |
25 |
8 |
8 |
Key Features & Benefits
⚡
Low thermal conductivity
🌡️
Suitable for applications from -200 °C to +110 °C
⚖️
Low density and weight
💰
Cost effective
🛠️
Fewer seams to provide a faster and more secure installation
🌀
Easily applied to awkward and difficult shapes
📦
Easily handled and transported
🍃
Free of fibre and dust
🛢️
Suitable for the oil and gas industry
🛡️
Minimised risk of corrosion under insulation
📈
Multi‐layered system provides exceptional thermal performance
✅
Ease of installation with reduced use of hazardous components
Performance Parameters
| Performance |
Base Material |
Standard |
| Kingflex ULT |
Kingflex LT |
| Thermal Conductivity |
-100℃, 0.028 -165℃, 0.021 |
0℃, 0.033 -50℃, 0.028 |
ASTM C177 EN 12667 |
| Density |
60-80 kg/m³ |
40-60 kg/m³ |
ASTM D 1622 |
| Recommend Operating Temp. |
-200℃ to +125℃ |
-50℃ to +105℃ |
NA |
| Percentage of Close Area |
> 95% |
> 95% |
ASTM D 2856 |
| Moisture Permeance Factor |
NA |
< 1.96 × 10g (m.s.Pa) |
ASTM E96 |
| Wet Resistance Factor µ |
NA |
> 10000 |
EN 12086 EN 13469 |
| Water Vapor Permeability Coeff. |
NA |
0.0039g/h.m² (25mm thickness) |
ASTM E96 |
| PH |
≥ 8.0 |
≥ 8.0 |
ASTM C871 |
| Tensile Strength MPa |
-100℃, 0.30 -165℃, 0.25 |
0℃, 0.15 -40℃, 0.218 |
ASTM D 1623 |
| Compressive Strength MPa |
-100℃, ≤ 0.37 |
-40℃, ≤ 0.16 |
ASTM D 1621 |
Product Showcase
Frequently Asked Questions (FAQ)
What is the temperature range for Kingflex ULT insulation?
Kingflex ULT is suitable for extremely low-temperature applications, ranging from -200 °C to +125 °C. It can be directly installed on piping equipment under temperatures as low as -110 °C.
Does this insulation system handle movement and vibration well?
Yes. The system is designed with a flexible multi-layer composite structure, making it ideal for pipelines that undergo repeated movement or vibration at temperatures below -100 °C.
What are the thermal conductivity rates of the ULT base material?
According to ASTM C177 and EN 12667 standards, the thermal conductivity of Kingflex ULT is 0.028 at -100℃ and 0.021 at -165℃.
What is the density of Kingflex ULT compared to Kingflex LT?
The density of the Kingflex ULT base material is 60-80 kg/m³, whereas the standard Kingflex LT has a density of 40-60 kg/m³, conforming to the ASTM D 1622 testing standard.
Is this insulation system safe and easy to install?
Yes. The system is completely free of fiber and dust, easily applied to complex and awkward shapes, and requires fewer seams, resulting in a faster, more secure, and cost-effective installation with minimized hazardous component usage.