NORRES NORPLAST® PUR 385 AIRFLEX AS
Lightweight antistatic PUR hose with integrated rigid PVC spiral
NORRES NORPLAST® PUR 385 AIRFLEX AS is a lightweight, antistatic and microbe-resistant suction and transport hose made from premium ester-polyurethane (Pre-PUR®) with an embedded rigid PVC spiral. The hose has a smooth interior for optimal flow and low friction and is designed for conveying and extraction of powder, granulate, dust and air in industrial systems and cleaning equipment.
Applications
Typical fields of use include:
- Transport and extraction of powder, granules and bulk materials
- Dust and particle extraction in production and process systems
- Blasting and surface preparation systems, cleaning and recovery units
- Textile machinery and fibre extraction (spinning, weaving and knitting)
- Feed and process installations in the food and feed industry (no direct food contact)
- Cable protection for X-ray and MRI scanners (special versions available)
- Municipal and industrial cleaning vehicles and floor scrubbers
Properties and approvals
- Lightweight construction with high flexibility
- Permanently antistatic wall – surface resistance approx. 10⁹ Ω according to ISO 8031
- Microbe-resistant and chemical-resistant
- Phthalate-free, RoHS and REACH compliant
- Smooth inner wall for easy cleaning and low pressure loss
- Temperature range: −20 °C to +70 °C (short term up to +80 °C)
Design
1 = Rigid PVC spiral embedded in wall
2 = Wall made of permanently antistatic ester-polyurethane (Pre-PUR®)
3 = NORPLAST® all-plastic construction with smooth interior
Recommended accessories
- CLAMP 211 – stainless steel clamp with potential equalisation
- CONNECT 228 – adapter and transition couplings
- CONNECT 223 – couplings for extraction and conveying systems
- CONNECT 270-271 – hygienic stainless-steel couplings
Need technical assistance?
Contact us for professional advice on selection, installation and grounding of flexible antistatic hoses for conveying and extraction in ATEX-classified environments.
FAQ: NORRES NORPLAST® PUR 385 AIRFLEX AS
What is this hose used for?
For conveying and extraction of powder, granulate and dust in light-duty industrial systems, cleaning units and ATEX zone 22 applications.
Is the hose antistatic?
Yes – the wall is permanently antistatic (< 10⁹ Ω) according to ISO 8031.
Is the hose food-grade?
No – it is not intended for direct contact with foodstuffs.
What are the temperature and pressure limits?
Temperature range −20 °C to +70 °C (short term +80 °C). Pressure and vacuum values depend on the diameter – see datasheet.
Which accessories are recommended?
CLAMP 211, CONNECT 228 or CONNECT 270-271 depending on installation type and grounding requirements.
Related links
Technical specifications
| I.D. (mm) | O.D. (mm) | Pressure (bar) | Vacuum (bar) | Bending radius (mm) | Weight (kg/m) | Order No. |
|---|---|---|---|---|---|---|
| 20 | 26.0 | 1.00 | 0.25 | 15 | 0.15 | 4604-020-000 |
| 25 | 31.0 | 1.00 | 0.25 | 16 | 0.16 | 4604-025-000 |
| 30 | 36.0 | 0.90 | 0.25 | 22 | 0.19 | 4604-030-000 |
| 32 | 38.0 | 0.85 | 0.20 | 19 | 0.20 | 4604-032-000 |
| 35 | 41.0 | 0.80 | 0.20 | 35 | 0.21 | 4604-035-000 |
| 38 | 45.0 | 0.75 | 0.20 | 31 | 0.30 | 4604-038-000 |
| 40 | 47.0 | 0.75 | 0.20 | 25 | 0.30 | 4604-040-000 |
| 45 | 52.0 | 0.65 | 0.20 | 42 | 0.33 | 4604-045-000 |
| 50-51 | 58.0 | 0.50 | 0.20 | 35 | 0.31 | 4604-050-000 |
| 60 | 68.0 | 0.50 | 0.16 | 50 | 0.50 | 4604-060-000 |
| 63-65 | 71.0 | 0.45 | 0.16 | 55 | 0.57 | 4604-063-000 |
| 70 | 79.0 | 0.40 | 0.16 | 60 | 0.65 | 4604-070-000 |
| 75-76 | 84.0 | 0.38 | 0.16 | 60 | 0.73 | 4604-075-000 |
| 80 | 89.0 | 0.35 | 0.16 | 75 | 0.76 | 4604-080-000 |
| 89-90 | 100.0 | 0.30 | 0.14 | 65 | 0.87 | 4604-090-000 |
| 100-102 | 110.0 | 0.28 | 0.13 | 100 | 1.04 | 4604-100-000 |
| 125-127 | 136.0 | 0.25 | 0.10 | 110 | 1.28 | 4604-125-000 |
| 150-152 | 162.0 | 0.18 | 0.08 | 105 | 1.55 | 4604-150-000 |
Overpressure and underpressure are recommended operating limits. Bending radius measured through the inner curve of the hose. Technical changes reserved. All values determined at approx. 20 °C.
