Construction:
- 2 layers of the aluminium laminated with polyester and the coil made of the spring wire.
- Total 3 layers
1st layer: Aluminum foil (10um)
2nd layer: Polyester(15um)
3rd layer: PVC (15um)
- spring wire: carbon steel from 0.9~1.3mm
Technical specification:
|
Air velocity: |
30m/s (max) |
|
Temperature range: |
-30℃ to '+250℃ |
|
Operating pressure: |
3000Pa (max) |
|
Fire resistance: |
yes |
|
Standard length: |
10m |
Size:
|
Diameter |
Spring wire (mm) |
|
|
space |
diameter |
|
|
4" |
25 |
1.0 |
|
5" |
25 |
1.0 |
|
6" |
30 |
1.0 |
|
7" |
30 |
1.1 |
|
8" |
35 |
1.1 |
|
10" |
40 |
1.2 |
|
12" |
40 |
1.2 |
|
14" |
40 |
1.2 |
|
16" |
40 |
1.3 |
|
18" |
40 |
1.3 |
|
20" |
40 |
1.3 |
