WT class0 NBR Tube
Density
40-80kg/m³
Thermal Conductivity
-20℃ ≤0.030
Operating Temperature
-50℃-110℃
Introduction
Application
| Performance items | Technical parameter | Executive standard |
| Apparent Density Kg/m³ | 40-80 | GB/T 6343 |
| Thermal Conductivity W/(m·k) | ≤1.31×10^-11 | GB/T10294 |
| Permeability g/(m·s·Pa) | ≤1.31×10^-11 | GB/T17146 |
| dampening factor | ≥15000 | GB/T17146 |
| Vacuum water absorption ％ | ≤6 | GB/T 17794 |
| Flammability | B1 grade, oxygen index ≥ 39% or more, additional grades: smoke production s2,
combustion droplets d0, smoke toxicity t1 grade. |
GB 8624 |
| Smoke Toxicity | ZA3 Safety Grade | GB/T20285 |
| Dimensional stability ％ | (105℃±3℃，7d) ≤10 | GB/T 8811 |
| Compression Resilience % | (50 % compression rate, 72H) ≥70 | GB/T6669 |
| Ageing resistance 150h | Wrinkle slightly, no cracks, no pinch, no deformation | GB/T 16259 |
| Temperature range ℃ | -50-110 | GB/T 17794 |
