
Key Features
- Flame-retardant PVC mesh fabric with high tear and abrasion resistance for long service life
- High-frequency, high-pressure heat-melted construction with no horizontal joints — prevents air leakage
- Reinforced with high-quality carbon steel wire for superior compressive strength and shape retention
- Resistant to acids, alkalis, corrosion, and moisture — suited to harsh marine and underground environments
- Fan ring (buckle) fitted approximately every 1.5 meters for easy positioning and secure installation
- Full range of 36 IMPA-coded variants (591461–591498) available for individual order
Technical Specifications
Group 1 — Folding Type
| IMPA Code | Tube Diam. | Length |
|---|---|---|
| 591461 | 200 mm | 10 m |
| 591462 | 300 mm | 10 m |
| 591463 | 400 mm | 10 m |
| 591464 | 500 mm | 10 m |
| 591465 | 600 mm | 10 m |
| 591466 | 700 mm | 10 m |
| 591467 | 800 mm | 10 m |
| 591468 | 900 mm | 10 m |
| 591469 | 1,000 mm | 10 m |
Group 2 — Ring Type
| IMPA Code | Tube Diam. | Length |
|---|---|---|
| 591471 | 200 mm | 10 m |
| 591472 | 300 mm | 10 m |
| 591473 | 400 mm | 10 m |
| 591474 | 500 mm | 10 m |
| 591475 | 600 mm | 10 m |
| 591476 | 700 mm | 10 m |
| 591477 | 800 mm | 10 m |
| 591478 | 900 mm | 10 m |
| 591479 | 1,000 mm | 10 m |
Group 3 — Spiral Type
| IMPA Code | Tube Diam. | Length |
|---|---|---|
| 591481 | 200 mm | 5 m |
| 591482 | 200 mm | 10 m |
| 591483 | 300 mm | 5 m |
| 591484 | 300 mm | 10 m |
| 591485 | 400 mm | 5 m |
| 591486 | 400 mm | 10 m |
| 591487 | 500 mm | 5 m |
| 591488 | 500 mm | 10 m |
| 591489 | 600 mm | 5 m |
| 591490 | 600 mm | 10 m |
| 591491 | 700 mm | 5 m |
| 591492 | 700 mm | 10 m |
| 591493 | 800 mm | 5 m |
| 591494 | 800 mm | 10 m |
| 591495 | 900 mm | 5 m |
| 591496 | 900 mm | 10 m |
| 591497 | 1,000 mm | 5 m |
| 591498 | 1,000 mm | 10 m |
Supply Information
- Certifications & Standards: Manufactured to marine-grade standards; fabric produced in accordance with GB165-1995. Supplier QC inspection performed on all batches.
- Packing: Each tube packed in a PE bag, then cartoned and secured with nylon packing straps for export.
- Delivery: Lead time confirmed at order; worldwide shipping via freight forwarders. Delivery to your ship agent can be arranged on request.
Frequently Asked Questions
Can you supply the full range of IMPA codes 591461 through 591498?
Yes. We stock and supply all 36 variants in this series — every code from 591461 to 591498 — each priced and available for individual order. Simply specify the IMPA codes and quantities you need.
What is the minimum order quantity for ventilation tubes?
We accommodate both wholesale and retail orders. Minimum order quantities vary by variant; please contact us with your required IMPA codes and quantities for a tailored quotation.
Do you ship worldwide and can you deliver to our ship agent?
We ship worldwide via freight forwarders. If you use a local ship agent, we can arrange delivery to them on request. Please provide your destination port and agent details when ordering.
Are these ventilation tubes suitable for use in tunnels and underground mines?
Yes. They are designed for local fan ventilation in shipbuilding, ship repair, tunnels, and underground mines, thanks to their flame retardancy, high compressive strength, and resistance to acids, alkalis, and moisture.
Inquire About This Product
Contact us for pricing, availability, and bulk orders:
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