| Model: | SLFT-PVC-NV |
|---|---|
| Brand: | SuLong |
| Origin: | Made In China |
| Category: | Construction & Decoration / Pipe, Tube & Parts / Pipe Fittings |
| Label: | negative ventilation , ventilation hose , air ducting |
| Price: |
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| Min. Order: | 500 pc |
| Last Online:15 Mar, 2016 |
Negative ventilation hose has two structures: one type is that the end coil is made of cold-drawing steel wire with end coil distance 150~600mm, and the other is that ducting connected with spiral steel ring made of spring steel wire with end coil distance 150~600mm.
Quality standard abides by GB/T 9900-2008.
Characters：
•Large air flow
•Long distance air supply
•Low air leakage
•Low air resistance
•Long service life
•Easy installation
•Safe and Environmental protection
•Great value
Usage：
Negative Ventilation hose is also named as drawing-out type ventilation hose and widely used in underground project of coal mines, tunnels, subway, ships and so on.
Description：
Working temperature: -20℃ ~ 70 ℃
Diameter: 0.3m、0.4m、0.6m、0.8m、1m、1.2m、1.4m、1.6m、1.8m、2m、2.4m
Standard Length: 10m
Standard color: Yellow, black
Connection: Zipper connection
Technical Parameter:
|
Diameter (mm) |
Windage/m N.S2/m8 |
Air leakage rate % |
Resistance to negative pressure |
Tensile Strength kN/m |
Tearing Strength N |
Thickness mm |
|
300 |
≤1728 |
≤5 |
≥5000 |
≥26 |
≥150 |
0.34 |
|
400 |
≤410 |
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|
500 |
≤134 |
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|
600 |
≤54 |
≥4000 |
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|
800 |
≤13 |
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|
1000 |
≤4 |
≥40 |
≥250 |
0.38 |
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|
1200 |
≤1.5 |
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|
1200 above |
≤1 |
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|
Anti-flaming |
Flaming time≤10s, Flameless time≤30s |
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|
Anti-static electricity |
Surface resistance≤3*108Ω |
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|
Heatproof |
No crack and tacky etc |
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|
Cold-resistant |
No breakage and leakage etc |
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