ATEX/ESD · Conductive
TURBOFLEX®/U.L./OHM
Abrasion-resistant and highly flexible suction and pressure hose with a notch- and wear-resistant inner wall, designed as a working hose for blasting media, gravel and mud. The inner tube in NR (natural rubber) has an abrasion value of only 60 mm³ per ISO 4649 — the highest class of wear resistance. The outer cover in NR/SBR blend is ozone- and abrasion-resistant. Conductive components on both core and outer cover. Classic rubber hose construction with textile plies and a steel spiral.
- Abrasion-resistant 60 mm³ NR wall
- Fully conductive <10⁶ Ω
- Solid abrasive media
- Highly flexible rubber construction
- 5 bar working pressure
- Cut to length
Why this hose?
TURBOFLEX®/U.L./OHM is built for the processes that literally eat a hose. Sandblasting, gravel blasting, blasting media conveyance — all the media where particles work their way into the hose wall and grind it down from the inside. The only way around that is a hose wall built specifically to resist this kind of wear.
The natural rubber (NR) in the inner tube is tested to 60 mm³ abrasion value per ISO 4649. That is a standardised wear test, and 60 mm³ is a very low value — typical rubber sits at 80-150 mm³, and only special wear formulations like this reach that low. That means the hose lasts longer in the processes where a regular PUR or NBR hose would quickly be worn out.
The full conductive classification (below 10⁶ Ω on both core and outer cover) is worth highlighting. Sandblasting and pneumatic conveyance of abrasive media generate static electricity — it is physics, not an option. A conductive hose dissipates the static electricity to ground, preventing both spark discharges and electrical "stings" to operators.
Wear resistance does not mean indestructibility. 60 mm³ is a strong value, but a hose exposed to high-speed blasting media still wears over time. Bend radius and mounting also matter: a sharp bend at the inlet concentrates particle loading and accelerates wear. Good installation is part of the solution.
Where it is used
TURBOFLEX®/U.L./OHM is built for sandblasting and blasting media conveyance. That covers both stationary installations in sandblasting cabins and mobile blasting equipment on construction sites, vessels and industrial maintenance jobs.
In practice we see it used for roof gravelling and roof gravel removal in building renovation, for industrial sweeping and collection of blasting residues, and for fertiliser and grain pneumatic conveyance in agriculture.
It is also used for mud and sludge transport on mining and construction sites, and as a connection hose on pneumatic transport systems where abrasion value is the primary challenge.
The formal product name is TURBOFLEX®/U.L./OHM. In daily use, many simply call it "the abrasion-resistant rubber hose" or "the sandblaster hose" — the classic workhorse for sandblasting and slidende media.
Technical specifications
Specifications are current as of 13 April 2026 and refer to 20 °C unless otherwise stated.
| Inner tube | NR (natural rubber), abrasion value 60 mm³ per ISO 4649 |
|---|---|
| Outer cover | NR/SBR blend, abrasion- and ozone-resistant |
| Colour | Black (both core and outer cover) |
| Wall construction | Smooth interior, shallow corrugated outer cover, textile plies + steel spiral |
| Conveying media | Solid, abrasive media (sand, gravel, blasting media, granulates) |
| Temperature range | −35 °C to +80 °C |
| Working pressure | 5 bar |
| Burst pressure | 15 bar |
| Vacuum | 0.9 bar |
| Abrasion value | 60 mm³ per ISO 4649 |
| Electrical resistance | Fully conductive (core and outer cover <10⁶ Ω) |
| Cut to length | Yes |
| Manufacturer SKU (model group) | 3508 |
With an abrasion value of 60 mm³ per ISO 4649, the hose is in the highest class of wear resistance. That is critical for conveying blasting media, sand and gravel — where particles would otherwise work through a standard hose wall in a short time.
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 |
Burst pressure |
Vacuum |
Bend radius |
Max. length |
Weight |
Roll |
Article no. |
|---|---|---|---|---|---|---|---|---|---|---|
| 51 | 62 | 5.5 | 5 | 15 | 0.9 | 130 | 20 | 1.31 | 20 | 3508050000 |
| 63 | 75 | 6 | 5 | 15 | 0.9 | 160 | 20 | 1.8 | 20 | 3508063000 |
| 76 | 88 | 6 | 5 | 15 | 0.9 | 190 | 20 | 2.13 | 20 | 3508075000 |
| 102 | 115 | 6.5 | 5 | 15 | 0.9 | 255 | 20 | 3.07 | 20 | 3508100000 |
| 127 | 144 | 8.5 | 5 | 15 | 0.9 | 380 | 20 | 5.11 | 20 | 3508125000 |
| 152 | 169 | 8.5 | 5 | 15 | 0.9 | 460 | 20 | 6.04 | 20 | 3508150000 |
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:
- ISO 4649 (formerly DIN 53516). Standardised wear test for rubber. The hose is classified at 60 mm³ — the highest class.
- EN ISO 1307:2008. International standard format for rubber and plastics hoses.
- ISO 8031. Measurement of electrical resistance in rubber and plastics hoses; verifies the full conductive classification.
- REACH (EC 1907/2006) and RoHS 2011/65/EU. The manufacturer holds declarations of compliance.
- Note: The hose is not formally ATEX-marked; it is fully electrically conductive as ESD practice.
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 industries where high wear resistance and static-electricity dissipation combine:
Construction and surface technology industries use the hose for facade sandblasting, concrete renovation and roof gravel handling.
Mechanical engineering and mining industries use it for blasting media transport, mud pumping and particle handling in demanding working environments.
Conveying and agricultural industries use it for pneumatic conveyance of granulates and fertiliser, where the abrasion value is critical for hose service life.
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 does "60 mm³" mean in the abrasion value?
ISO 4649 (formerly DIN 53516) is a standardised test where a rubber specimen is abraded against an abrasive paper, and the volume loss is measured in mm³. 60 mm³ is a very low value — typical rubber is 80-150 mm³, and only special wear formulations reach 60 mm³. That means the hose handles abrasive media like sand, gravel and blasting agents far better than standard NBR or PUR hoses.
Can the hose be used for liquids?
No, not as a primary medium. TURBOFLEX®/U.L./OHM is built for solid, abrasive media — sand, gravel, blasting agents, granulates. The inner tube in natural rubber is not oil- or petrol-resistant, so for liquids the CARBOFLEX® series should be chosen instead.
What temperature range does the hose tolerate?
The normal operating range is −35 °C to +80 °C. That is lower than PUR and PROTAPE hoses (+90 °C), because natural rubber has lower temperature tolerance than thermoplastic materials.
Is the hose ATEX-approved?
The hose is fully electrically conductive (resistance below 10⁶ Ω on both core and outer cover), but the factsheet does not list a formal ATEX 2014/34/EU marking. It is primarily targeted at processes where sandblasting and abrasive media can generate static electricity, and where conductive dissipation is a desirable safety practice.
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 is the difference between an antistatic (AS) and an electrically conductive (EC) hose?
AS hoses have surface resistance between 10⁶ and 10⁹ Ω and are antistatic but not fully conductive. EC hoses have resistance below 10⁶ Ω and actively conduct static electricity to ground. For Zone 22 (dust) and Zone 1/2 (gases) AS is typically sufficient. For Zone 20 and Zone 0 — the strictest classes — EC is required. See our article "Know your ohm" for a review of the resistance classes.
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.