Abrasion-resistant
NORFLEX® PUR 441 AS
NORFLEX® PUR 441 AS is a transparent PUR pressure hose with polyester plies and a smooth outer surface. The manufacturer states that the outer cover is antistatic below 10⁹ Ω. The normal temperature range is −40 to +90°C, short-term up to +125°C. The hose is supplied in inner Ø 19 and 25 mm with working pressures of 8 and 6 bar.
- Antistatic outer cover
- −40 to +90°C
- Polyester plies
- Up to 8 bar
- Transparent
- Cut to length
Why this hose?
NORFLEX® PUR 441 AS is a transparent PUR pressure hose with polyester plies and a smooth outer surface. The outer cover is antistatic below 10⁹ Ω.
The manufacturer states a normal temperature range from −40 to +90°C and short-term up to +125°C.
Where it is used
The hose is used as a pressure hose where the outer cover must be antistatic.
The formal name is NORFLEX® PUR 441 AS.
Technical specifications
Specifications are current as of 30 October 2026 and come from the manufacturer's data sheet. Fields without a value are not stated by the manufacturer.
| Material | PUR |
|---|---|
| Plies | Polyester |
| Colour | Transparent |
| Outer surface | Smooth |
| Wall thickness | 4 mm |
| Temperature range | −40°C to +90°C |
| Short-term peak | +125°C |
| Electrical resistance | Outer cover antistatic <109 Ω |
| Manufacturer SKU (model group) | 4415312 |
Dimensions and ordering
The table shows the standard sizes from the manufacturer's data sheet. Working pressure is stated at 20°C. Fields without a value (—) are not stated.
| Inner Ø |
Outer Ø |
Wall thickness |
Working pressure |
Max. length |
Weight |
Article no. |
|---|---|---|---|---|---|---|
| 19 | 27 | 4 | 8 | 50 | 0.37 | 44191905312 |
| 25 | 33 | 4 | 6 | 50 | 0.45 | 44192505312 |
Fields without a value (—) are not specified in the manufacturer's factsheet. Overpressure and underpressure values are recommended operating limits; the product can be subjected to higher loads on request. Bend radius is measured along the inside of the hose bend.
Standards and compliance
The hose is documented as follows:
- REACH (EC 1907/2006) and RoHS 2011/65/EU. The manufacturer holds declarations of compliance, available under Documentation.
The manufacturer only states the outer cover as antistatic. A hose is not itself ATEX certified, and whether it suits a zone is decided in your own zone assessment.
Documentation and downloads
Additional documents about this hose, its compliance and installation. Click to download as PDF in a new tab.
Help with material selection
Although this hose isn't ATEX-relevant, these two articles provide useful background on electrical resistance and industrial safety — important if you later combine the hose with electrical equipment or work in mixed environments:
The invisible weakest link
Why a conductive or antistatic hose isn't sufficient on its own — and what grounding means for the complete system.
Know your ohm
The difference between antistatic and conductive, which resistance limits apply where, and how to measure them correctly.
Industries that use it
The hose is used in:
Industry as a pressure hose.
Custom lengths and assemblies
The hose can be cut to length and assembled with couplings. We advise on the assembly so the hose fits your installation.
Frequently asked questions
Is the whole hose antistatic?
The manufacturer only states that the outer cover is antistatic below 10⁹ Ω. No resistance is stated for the inner tube. If the hose is to be used in explosion hazard areas, contact us first; the zone is decided in your own zone assessment.