ATEX/ESD · Antistatic
PROTAPE® PUR 330 AS BLACK
Antistatic polyurethane hose in light-duty construction, marked BLACK after the colour of the spiral and the darker outer cover in the larger diameters. Wall thickness 0.6 mm, surface resistance below 10⁹ Ω, flame-retardant per UL94-HB. Suited to extraction systems where a darker appearance is preferred over the standard transparent PROTAPE® while keeping the lightweight handling and microbe-resistance.
- Static dissipation <10⁹ Ω
- Flame-retardant UL94-HB
- Highly flexible light-duty
- Gas, dust
- Microbe-resistant
- Cut to length
Why this hose?
PROTAPE® PUR 330 AS BLACK is the light-duty variant of the 330 family with a visual twist: the black spiral and slightly darker outer cover make the hose easy to distinguish from other transparent hoses on the worksite.
Functionally the construction is the same lightweight PUR wall at 0.6 mm and the same antistatic formulation with surface resistance below 10⁹ Ω. It is flame-retardant per UL94-HB and microbe-resistant — the latter making it interesting for clean rooms and processes where microbial growth in the hose wall must be kept low.
Compared with standard 330 AS (LD), the difference is primarily visual: BLACK has the black spiral but no formal ATEX marking in the factsheet. Choose BLACK when visual identification matters most, and standard 330 AS (LD) when ATEX 2014/34/EU + TRGS 727 approval is a formal requirement.
The BLACK variant is not ATEX-marked in the factsheet. It has the same antistatic wall as the standard 330 AS (LD), but the factsheet does not list a formal ATEX 2014/34/EU + TRGS 727 approval. If your application requires documented ATEX marking, choose the standard 330 AS (LD) instead.
Where it is used
PROTAPE® PUR 330 AS BLACK is built for worksites where visual differentiation between hose types is needed alongside an antistatic, flame-retardant hose. That makes it well suited for extraction and filtration technology, where multiple hose lines often run in the same installation.
In practice we see it used for wood dust extraction, for spray mist extraction in surface treatment, and for steam soaking in chemical vapour handling.
It is also used for clean rooms and clean room ventilation where microbe resistance and flame retardancy combine, and for oil mist extraction on machinery.
The formal product name is PROTAPE® PUR 330 AS BLACK. In daily use, many simply call it "330 AS BLACK" or "the black 330" — mainly to distinguish it from the standard 330 AS (LD).
Technical specifications
Specifications are current as of 15 April 2026 and refer to 20 °C unless otherwise stated.
| Material | Polyurethane (PUR), permanently antistatic |
|---|---|
| Colour | Transparent with black spiral |
| Wall construction | Light duty (LD), 0.6 mm wall thickness, compressibility 4:1 |
| Conveying media | Gas, dust |
| Temperature range | −40 °C to +90 °C |
| Short-term peak | +125 °C |
| Electrical resistance | Antistatic wall <10⁹ Ω (NFPA 652 threshold: 10⁸–10⁹ Ω) |
| Flame retardancy | UL94-HB |
| Microbe resistance | Yes |
| Cut to length | Yes |
| Manufacturer SKU (model group) | 3302030 |
Dimensions and ordering
The table shows the main variants from the manufacturer's factsheet. Fields without a value (—) are not specified. Diameters, pressure values and bend radii are normative; weights and roll lengths are typical production values.
| Inner Ø |
Outer Ø |
Wall thickness |
Working pressure |
Working pressure |
Vacuum |
Vacuum |
Bend radius |
Max. length |
Weight |
Article no. |
|---|---|---|---|---|---|---|---|---|---|---|
| 50.5 | 58.5 | 0.6 | — | — | — | — | 33 | 20 | 0.26 | 33000502030 |
| 80 | 88 | 0.6 | — | — | — | — | 48 | 20 | 0.41 | 33000802030 |
| 101.5 | 109.5 | 0.6 | — | — | — | — | 58 | 25 | 0.48 | 33001002030 |
| 110 | 118 | 0.6 | 0.375 | 0.97 | — | — | — | 10 | 0.51 | 33001102030 |
| 120 | 128 | 0.6 | 0.345 | 0.89 | — | — | 68 | 25 | 0.56 | 33001202030 |
| 126.5 | 134.5 | 0.6 | — | — | — | — | 71 | 25 | 0.59 | 33001252030 |
| 140 | 148 | 0.6 | — | — | — | — | 78 | 25 | 0.65 | 33001402030 |
| 151.5 | 159.5 | 0.6 | — | — | — | — | 83 | 25 | 0.7 | 33001502030 |
| 160 | 168 | 0.6 | — | — | — | — | 88 | 25 | 0.74 | 33001602030 |
| 180 | 188 | 0.6 | 0.23 | 0.59 | 0.045 | 0.1 | 98 | 25 | 0.83 | 33001802030 |
| 202.3 | 210.3 | 0.6 | 0.21 | 0.54 | 0.03 | 0.11 | 108 | 15 | 0.93 | 33002002030 |
| 225 | 233 | 0.6 | — | — | — | — | 121 | 15 | 1.03 | 33002252030 |
| 250 | 258 | 0.6 | 0.165 | 0.43 | 0.025 | 0.07 | 133 | 15 | 1.14 | 33002502030 |
| 254 | 262 | 0.6 | — | — | — | — | — | 10 | 1.16 | 33002542030 |
| 300 | 309 | 0.6 | 0.14 | 0.36 | 0.02 | 0.05 | 159 | 10 | 1.47 | 33003002030 |
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 certified or documented to the following standards:
- UL94-HB. US classification for limited flame propagation. The material burns at a limited rate and self-extinguishes when the flame source is removed.
- NFPA 652. US standard on the fundamentals of combustible dust. Antistatic components have resistance in the 10⁸–10⁹ Ω range.
- ISO 8031. Measurement of electrical resistance in rubber and plastics hoses.
- REACH (EC 1907/2006) and RoHS 2011/65/EU. The manufacturer holds declarations of compliance.
- Microbe-resistant. The wall is treated to resist microbial growth, an advantage in clean rooms and pharmaceutical environments.
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
If you are choosing a hose and are uncertain about the right resistance level or zone classification, these two articles are a good place to start:
Industries that use it
The hose is used across the industries where antistatic extraction and visual identification are combined needs:
Wood industry and surface technology use the hose for wood dust extraction and spray mist handling, where flame retardancy and antistatic wall are central requirements.
Chemical industry and extraction technology use it for solvent vapour and chemical vapour handling in classified zones.
Shipbuilding and pharma-related environments rely on microbe resistance and flame retardancy, particularly in confined spaces and clean rooms.
Custom lengths and assemblies
The hose can be cut to length and assembled with couplings, cuffs and threaded fittings through Particulair's custom hose assemblies.
We offer guidance on material choice, coupling system and grounding, so the hose fits correctly into the overall system. If there is any doubt about zone classification or resistance requirements, a short conversation before ordering is well worth the time.
Frequently asked questions
Is the BLACK variant formally ATEX-approved?
No, not in the factsheet itself. PROTAPE® PUR 330 AS BLACK has surface resistance below 10⁹ Ω and meets the NFPA 652 thresholds for antistatic components, but the factsheet does not list a formal ATEX marking. If ATEX marking is a formal requirement in your process, choose the standard 330 AS (LD) which carries the explicit ATEX 2014/34/EU + TRGS 727 approval.
Why is it called BLACK when the colour is transparent?
The name refers to the black spiral running inside the wall, which gives it a darker appearance than the fully transparent standard. The outer cover is still partly transparent, but in the larger diameters the hose appears darker than the classic PROTAPE® PUR 330. That makes it easier to distinguish on a worksite with several hose types.
What temperature range does the hose tolerate?
The normal operating range is −40 °C to +90 °C, and short-term peaks up to +125 °C are permitted. For continuous operation above 90 °C, a TPE or silicone-based hose is recommended.
How big is the flexibility difference between BLACK and standard 330 AS?
The difference is minimal — both have a 0.6 mm wall, the same PUR formulation and the same spring steel spiral. The BLACK variant has compressibility 4:1 versus the standard's 3:1, so BLACK can be packed slightly tighter for storage.
Can the hose be supplied cut to length with couplings?
Yes. PROTAPE® PUR 330 AS BLACK can be cut to length and assembled with couplings, cuffs and threaded fittings through Particulair's custom hose assemblies. We provide guidance on coupling system and sealing so the hose fits correctly into the overall installation.
How do I order the hose, and where do you deliver?
The hose is ordered through Particulair (Karlslunde, Denmark). We deliver to Denmark, the EU and selected third countries such as Norway and Switzerland. Standard dimensions can typically be delivered in 1-2 weeks; custom assemblies and larger volumes require slightly longer lead time.
What is the hose's expected service life?
Service life depends on operating conditions: loading, temperature, chemical exposure, UV and mechanical movement. In standard industrial use, expected life is 3-7 years. Aggressive conditions (high temperatures, continuous flexing, chemical vapours) reduce service life. We recommend regular visual inspection for cracks, deformation or discolouration.
How is the hose best stored before use?
Store the hose dry, at room temperature (15-25 °C) and out of direct sunlight. Avoid contact with ozone-generating equipment (welding equipment, engines). If stored on a reel, the bend must be larger than the specified minimum radius to avoid permanent deformation. Proper storage significantly extends shelf life.