EPDM insulation pipe
Our EPDM closed cell tube and sheet insulation is composed of Ethylene-Propylene-non-conjugatedDieneRubber, It is a kind of nonpolar , Saturation and no cracks rubber. Our EPDM insulation provides many advantages over most rigid insulations for cooling and heating lines,
1 outstanding ultraviolet and weather resistance
2 work temperature(-200Celsius --+175Celsius)
3 Stable moisture & vapor resistance gene
4 low&stable thermal conductivity
5 closed cell foam structure,water absorption rate is low(The wall thickness of closed cell foam is 4 micron. closed cell foaming capacity is above 95%,water absorption rate less than 5%)
6 Environmental,Non-CFC.
7 low Flammability B1 Grade, self-extinguishing, no fireball drops, limited fire spreading
| EPDM insulation pipe Specification |
| Item | Unit | Specification |
| Foam texture | Close Cell Foal | |
| Density | Kg/m3 | 48-80 |
| Temperature Range | From -50℃ to +150℃ (up to 175 °C operating intermittent.) | |
| Flammablility | B1 | |
| Oxygen index | % | ≥32 |
| Conductivity factor Average temperature -20℃ 0℃ 40℃ |
W/(M*K) | 0.032 0.034 0.039 |
| Water absorption ratio in vacuum | % | ≤5 |
| Dimension stability 93±℃7d |
% | ≤6 |
| Crack resistance | good | |
| Formaldehyde | Exclusive | |
| Ammonium nitrite | Exclusive | |
| Polyethylene | Exclusive |
| Application Instruction |
| type of medium for the insulated pipe | Environmental Temperature | Medium Temperature | relative humidity | Insulation Pipe Wall thicnkness |
| Frozen Water Pipe | 28℃ | 7℃ | 75％ | 20mm-38mm |
| condensated water pipe | 28℃ | 18℃ | 75％ | 13mm |
| Duct Piping | 26℃ | 16℃ | 70％ | 13mm |
| Water supply and drainage pipe | 28℃ | 32℃ | 75％ | 13mm |
| High temperature hot water pipe | 22℃ | 95℃ | 65％ | 20mm seasonal or intermittent； 25mm perennial |
| Low temperature hot water pipe | 22℃ | 60℃ | 65％ | 13mm seasonal or intermittent； 20mm perennial |
| Compare between EPDM and NBR |
| EPDM | NBR/PVC |
 After 1 year's out-door use |
 After 1 year's out-door use |
 |
 |
| How to distinguish between EPDM and NBR |
| Method: put one piece of insulation pipe into Microwave at medium heat for heating two minutes separately. After two minutes, the NBR insulation will become very smelly and heavy smoke. EPDM doesn't have any special smell and no smoke. The work temperature of EPDM can reach 175℃，But NBR/PVC can only reach 105 ℃ |
|
 EPDM insulation pipe :before putting into microwave |
 Put EPDM insulation pipe into microwave and turn on microwave at medium heat for two minutes. After two minutes. The only change is the insulation pipe become expansion. |
 NBR/PVC insulation pipe: before putting into microwave |
 Put ENBR/PVC insulation pipe into microwave and turn on microwave at medium heat for two minutes. After two minutes. The heavy smoke happened and very smelly. The insulation body changes the shape seriously. |
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