Semi Rigid Ventilation Ducting
| Material: | PVC-coated Polyester-yarn, anti-static and flame resistant, with approval for coal mines |
|---|---|
| Helix: | High tensile spring wire in continuous spiral |
| Colour: | Black |
| Technical Data: | Ducting can be made any length from 0.3mtr to 10mtrs and diameter from 0.300mtr to 1.400mtrs |
| d1 inside Dia mm* |
a Wire Pitch |
d2 Dia Over End Ring |
Standard Wire Dia mm |
Weight of various pitches Kg per 1m length |
Recommended Negative Max Working Pressure |
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|---|---|---|---|---|---|---|---|---|---|
| 50 mm | 75 mm | 100 mm | 50 mm - kPa |
75 mm - kPa |
100 mm - kPa |
||||
| 300 | 330 | 5 | 3.6 | 2.9 | 2.2 | 39.35 | 26.23 | 19.68 | |
| 400 | 100 | 430 | 5 | 4.8 | 3.8 | 2.8 | 16.60 | 11.07 | 8.30 |
| 500 | or | 530 | 5 | 6.0 | 4.8 | 3.6 | 8.50 | 5.67 | 4.25 |
| 600 | 75 | 630 | 5 | 7.1 | 5.7 | 4.2 | 4.92 | 3..28 | 2.45 |
| 700 | or | 760 | 5 | 8.4 | 6.7 | 5.0 | 31.0 | 2.07 | 1.55 |
| 800 | 50 | 830 | 5 | 9.5 | 7.6 | 5.6 | 2.08 | 1.38 | 1.04 |
| 900 | 930 | 5 | 10.7 | 8.5 | 6.4 | 1.46 | 0.97 | 0.73 | |
| 1000 | 1030 | 5 | 11.9 | 8.5 | 7.1 |
1.07 | 0.71 | 0.54 | |
| 1100 | 1130 | 5 | 14.3 | 11.4 | 8.5 | 0.80 | 0.53 | 0.40 | |
*Examples only, intermediate diameters can be supplied e.g. 560mm dia
Flared & oval |
Oval to round |
Any length |
|
