Food/Pharma · EU 1935/2004 + EU 10/2011
PROTAPE® PUR 331 FOOD (XLD)
Food-grade suction and pressure hose in extra-light-duty (XLD) construction. Flexibility and low weight make it ideal for processes where the hose moves often — filling machines, mobile extraction and powder management on pharma and food lines. Food-grade per all relevant simulants in EU 10/2011, FDA 21 CFR 177.2600 and GMP EU 2023/2006.
- Food-grade EU + FDA
- Highly flexible XLD
- Abrasion-resistant PUR wall
- Gas, dust
- GMP manufacturing
- Cut to length
Why this hose?
PROTAPE® PUR 331 FOOD (XLD) is a light-duty food hose. The food-grade PUR wall is built for processes where handling comfort and flexibility matter — filling machines that move often, mobile extraction and powder management on pharma lines.
The hose is tested and approved per all relevant categories in EU 10/2011 (A, B, C, D2 and E) plus the German LFGB. That is the full spectrum of food processes from aqueous to fatty products.
Where it is used
In practice 331 FOOD (XLD) is used on filling machines and packaging lines, powder management in pharma production, and extraction arms in food production where light handling is a daily priority.
The formal product name is PROTAPE® PUR 331 FOOD (XLD). In daily use this is "light-duty food PROTAPE" or "331 XLD".
Technical specifications
Specifications are current as of 15 April 2026 and refer to 20 °C unless otherwise stated.
| Material | Polyurethane (PUR), food-grade |
|---|---|
| Colour | Transparent |
| Wall construction | Extra light duty (XLD), spiral-reinforced food-grade PUR |
| Spiral material | Spring steel wire embedded in the wall |
| Temperature range | −40 °C to +90 °C |
| Short-term peak | +125 °C |
| Food approval | EU 10/2011 (A, B, C, D2, E), EU 1935/2004, FDA 21 CFR 177.2600, LFGB, GMP EU 2023/2006 |
| Cut to length | Yes |
| Manufacturer SKU (model group) | 3310000 |
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 | 0.4 | 0.48 | 1.42 | 0.17 | 0.85 | 33 | 20 | 0.27 | 33100500000 |
| 60 | 68 | 0.4 | 0.405 | 1.19 | 0.145 | 0.59 | 38 | 20 | 0.32 | 33100600000 |
| 75.6 | 83.6 | 0.4 | 0.325 | 0.95 | 0.115 | 0.39 | 45 | 20 | 0.4 | 33100750000 |
| 80 | 88 | 0.4 | 0.305 | 0.89 | 0.11 | 0.34 | 48 | 20 | 0.42 | 33100800000 |
| 90 | 98 | 0.4 | — | — | — | — | 53 | 20 | 0.47 | 33100900000 |
| 101.5 | 109.5 | 0.4 | 0.245 | 0.71 | 0.055 | 0.3 | 58 | 20 | 0.49 | 33101000000 |
| 140 | 148 | 0.4 | — | — | — | — | 78 | 20 | 0.67 | 33101400000 |
| 151.5 | 159.5 | 0.4 | 0.16 | 0.48 | 0.035 | 0.13 | 83 | 10 | 0.72 | 33101500000 |
| 155 | 163 | 0.4 | — | — | — | — | — | 10 | 0.74 | 33101550000 |
| 160 | 168 | 0.4 | 0.15 | 0.45 | 0.035 | 0.12 | 88 | 10 | 0.76 | 33101600000 |
| 180 | 188 | 0.4 | — | — | — | — | 98 | 10 | 0.85 | 33101800000 |
| 204 | 213 | 0.4 | — | — | — | — | — | 15 | 1.06 | 33102040000 |
| 210 | 219 | 0.4 | — | — | — | — | — | 15 | 1.09 | 33102100000 |
| 255 | 264 | 0.4 | — | — | — | — | — | 15 | 1.32 | 33102550000 |
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 to the following standards:
- EU 10/2011 (relevant categories). EU regulation for plastics in food contact.
- EU 1935/2004. Framework regulation for food contact materials.
- FDA 21 CFR 177.2600. US food approval for polyurethane materials.
- GMP EU 2023/2006. Manufacturing process certified to Good Manufacturing Practice.
- REACH and RoHS. The manufacturer holds declarations of compliance.
- LFGB. German Food and Feed Code.
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
Even though this hose is not 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:
Industries that use it
The hose is used in food and pharma industries where light handling is central:
Food, pharma and tobacco industries use the hose for powder management, filling machines and extraction where mobility is a daily priority.
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
What is the difference between 331 FOOD (XLD) and 330 FOOD (LD)?
Both are food-grade PUR suction and pressure hoses, but 331 FOOD (XLD) is one class lighter than 330 FOOD (LD). The wall thickness is thinner, the hose is more flexible, and production lengths are slightly shorter. 331 (XLD) is the right choice when the hose moves often; 330 (LD) is right when mechanical wear is high.
Is the hose ATEX-approved?
No. 331 FOOD (XLD) is not antistatic and not ATEX-approved. For classified zones with combustible dust, choose AIRDUC® PUR-INOX 351 FOOD-AS (MD) or PROTAPE® PUR-C 335 FOOD-AS FLAT.
Can the hose be supplied in custom lengths?
Yes. The hose can be cut to length through Particulair's custom hose assemblies. Maximum production length is 20 m for most diameters.
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.
What is the minimum bend radius, and what happens if I go below it?
Minimum bend radius is the smallest radius the hose can be bent to without permanent deformation or internal damage. The table above shows specific values for each dimension. Bending the hose below this limit can collapse the wall, kink the spiral or damage the inner coating. The result is reduced flow, increased pressure loss and shorter service life. Always use bend radius as a design constraint in installation.
What do EU 10/2011 and EU 1935/2004 mean?
EU 1935/2004 is the framework regulation for materials and articles in contact with food — the overarching safety baseline. EU 10/2011 specifies plastics materials in food contact, including migration limits and test categories (A=aqueous, B=acidic, C=alcoholic, D=fatty, E=dry). When the hose is tested for relevant categories, it means it is safe for food contact with those media types.
What does "GMP-certified manufacturing process" mean?
GMP (Good Manufacturing Practice) per EU 2023/2006 means the manufacturing of the hose is controlled, documented and traceable from raw material to finished product. It is not only the product that is food-grade — the production process itself is subject to food-safety protocols. This is typically mandatory for pharma and food industries where traceability is a formal requirement.
What is the difference between working pressure and burst pressure?
Working pressure is the pressure the hose is designed to operate at continuously and safely. Burst pressure is where the hose mechanically fails. The safety factor is typically 3:1 (burst is 3× working pressure), but varies by construction. Running the hose close to burst pressure is never safe in practice — there must always be margin for sudden pressure spikes, temperature changes and material ageing. Stay below working pressure in normal operation.