ATEX/ESD · Conductive
CARBOFLEX®/EN
Oil-resistant suction and pressure hose with steel spiral, highly flexible. NBR inner tube tolerates fuels up to 50% aromatic content. Working pressure PN 16 bar. Electrically conductive (<10⁶ Ω on inner and outer cover). Compliant with EN 1761:1999 and EN 12115:2021 (tank truck hoses for flammable liquids) plus TRbF 131, Part 2, § 5.5 (German Technical Rules for Flammable Liquids). Designed for fuel transfer between tanks, ships and fixed installations.
- EN 12115:2021
- Conductive <10⁶ Ω
- NBR inner tube
- −40 to +90 °C
- PN 16 bar
- Cut to length
Why this hose?
CARBOFLEX®/EN is a suction and pressure hose specifically designed for fuel transfer in marine, transport and industrial contexts. EN 12115:2021 is the European standard for tank truck hoses transporting flammable liquids — only hoses meeting this standard may be used for commercial fuel distribution in many EU countries.
The difference from CARBOCORD/10 is decisive: CARBOFLEX is suction-pressure (can both suck and push), while CARBOCORD is pressure-only. For fuel bunkering where the hose must first suck from tank A and then push to tank B, CARBOFLEX is the right choice.
Where it is used
In marine bunkering the hose typically sits on liquid fuel distribution — from tanker to harbour tank or between ships in open water.
In the transport industry it's used on tank trucks distributing fuel to pumping stations or industrial facilities.
In everyday talk we call it an "EN 12115" hose — it's the standardised tank truck hose.
Technical specifications
Technical specifications for CARBOFLEX®/EN.
| Material | NBR inner tube, steel spiral, wrapped exterior |
|---|---|
| Working pressure | PN 16 bar |
| Resistance | <106 Ω (inner + outer) |
| Temperature | −40 to +90 °C (peak +100) |
| Conformity | EN 1761:1999, EN 12115:2021, TRbF 131 |
| Cut to length | Yes |
| Manufacturer SKU group | 3356 |
Dimensions and ordering
Standard dimensions for CARBOFLEX®/EN.
| Inner Ø |
Outer Ø |
Wall thickness |
Working pressure |
Burst pressure |
Vacuum |
Bend radius |
Max. length |
Weight |
Roll |
Article no. |
|---|---|---|---|---|---|---|---|---|---|---|
| 25 | 37 | 6 | 16 | 64 | 0.9 | 150 | 40 | 0.9 | 40 | 3356025000 |
| 32 | 44 | 6 | 16 | 64 | 0.9 | 175 | 40 | 1.05 | 40 | 3356032000 |
| 38 | 51 | 6.5 | 16 | 64 | 0.9 | 225 | 40 | 1.37 | 40 | 3356038000 |
| 50 | 66 | 8 | 16 | 64 | 0.9 | 275 | 40 | 2.2 | 40 | 3356050000 |
| 63 | 79 | 8 | 16 | 64 | 0.9 | 300 | 40 | 2.7 | 40 | 3356063000 |
| 75 | 91 | 8 | 16 | 64 | 0.9 | 350 | 40 | 3.17 | 40 | 3356075000 |
| 100 | 116 | 8 | 16 | 64 | 0.9 | 450 | 40 | 4.58 | 40 | 3356100000 |
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
CARBOFLEX®/EN is certified to:
- EN 12115:2021. European standard for tank truck hoses transporting flammable liquids.
- EN 1761:1999. Standard for fuel hoses.
- TRbF 131, Part 2, § 5.5. German technical rule for flammable liquids.
- REACH and RoHS.
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're choosing a hose and are unsure about the right resistance level or zone classification, these two articles are a good place to start:
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
CARBOFLEX®/EN is the standardised fuel transfer hose:
In marine and transport it's the only practical solution when authority approval per EN 12115 is required.
In petrochemical industry it's used for internal fuel transfer between tanks and distribution points.
Custom lengths and assemblies
The hose is delivered on 40 m rolls. We cut to length and fit Camlock, flange or bayonet with correct grounding — important for ATEX compliance.
For marine bunkering we can deliver certified finished assemblies with documentation.
Frequently asked questions
What's the difference between CARBOFLEX/EN and CARBOCORD/10?
CARBOFLEX/EN is suction-pressure — can both suck from tank and push to tank. CARBOCORD/10 is pressure-only — only for loading, not unloading. For marine bunkering or tank-to-tank transfer choose CARBOFLEX.
What does EN 12115:2021 mean?
The European standard for tank truck hoses transporting flammable liquids. Only hoses with this certification may be used for commercial fuel distribution in many EU countries.
Does it tolerate unleaded petrol?
Yes. The NBR inner tube tolerates fuel with up to 50% aromatic content — covering all EU standard petrol types.
Does the hose need to be grounded?
Yes, ALWAYS. Fuel transfer builds static quickly — without grounding there's a real explosion risk.
What's the working pressure?
PN 16 bar is standard working pressure. Burst pressure is higher (typically 4× = 64 bar) which is industry-standard safety margin.
Can I get it with Camlock?
Yes. Camlock is standard in marine and transport. We fit Camlock with correct grounding as a finished assembly.