High-temperature · up to +600 °C
METAL HOSE VA 108 AD
METAL HOSE VA 108 AD is a highly flexible stainless steel hose with corrugated construction without plastic coating. The hose tolerates continuous operation up to +600 C - identical heat resistance as Agraff-VA 150 AD, but with a simpler and typically more economical construction. IP 40 per EN/IEC 60529 means the hose is tight against foreign objects over 1 mm but not water-tight. The hose is typically used in fixed-installed cable runs in high-temperature zones: smelting facilities, engine test benches, exhaust systems and industrial ovens where mechanical flexibility is secondary to heat resistance.
- Up to +600 C
- Stainless steel
- Corrugated
- Corrosion-resistant
- Cable protection
- IP 40
Why this hose?
The 108 AD vs. 150 AD choice reflects a typical industrial trade-off: corrugated stamping is simple and economical but limits flexibility; Agraff seam is more complex and expensive but provides superior flexibility. Both have the same heat resistance and the same stainless steel grade. If the cable run is fixed - i.e. it is bent once at installation and stays - 108 AD is typically the right economical choice.
Corrosion resistance from the stainless steel construction is a major service life advantage compared to ordinary galvanised steel. AISI 304/316 grade resists continuous moisture exposure and can still maintain integrity after 15-20 years of indoor operation. In corrosive environments (coastal, chemical facilities) service life is 10-15 years - still significantly longer than most alternative solutions.
The +600 C range is remarkable for a conduit product. It is because the hose is pure metal without organic components (plastic, rubber, glue) that would melt or burn. In practice this means the hose can be installed directly at heat zones without risk of cable insulation melting due to the hose itself (provided that the contained cables are specified to the same temperature).
Where it is used
Steel industry and smelting facilities use the hose for cable runs near high-temperature areas. Sensor cables, control signals and power cables for heat-zone instrumentation require a conduit that does not itself become a weak point. The hose's +600 C range and fixed-installed construction are ideal for these runs.
Engine test benches at automotive, marine and generator manufacturers use the hose for cable protection around exhaust systems and engine-zone sensors. Unlike installation-room cable runs where flexibility is important, these installations are typically fixed - the hose is mounted once and stays. This matches 108 AD's profile perfectly.
Industrial ovens, sintering facilities and thermal processing facilities use the hose for cable runs near heating elements. The corrugated construction's stiff flexibility is practical here - the hose can be shaped to the installation route and remains stable over years of thermal cycling.
The hose is colloquially known as a VA conduit, stainless steel conduit or high-temperature metal hose.
Technical specifications
The hose's key specifications are briefly summarised below. 108 AD is the most economical VA stainless steel hose in the Cable Protection family - choose it for fixed-installed cable runs in high-temperature zones; for frequently bending installations we recommend Agraff-VA 150 AD.
| Construction | Corrugated stainless steel (fold stamping) |
|---|---|
| Material | Stainless steel (AISI 304/316 grade) |
| Coating | None (pure metal) |
| Colour | Steel grey (natural colour) |
| Temperature range | -40 to +600 C |
| IP rating | IP 40 per EN/IEC 60529 |
| Standard pack length | 50 m per roll |
| Number of dimensions | 8 (ID 5-23 mm) |
| Application | Fixed-installed cable protection in high temperatures |
| Manufacturer SKU | 1089050 |
Dimensions and ordering
The table shows the hose's 8 standard dimensions with ID, OD (equal to nominal connecting-part width on 108 AD), bend radius and max production length. Weight is given per metre (converted from the factsheet's per-50m values).
| Inner Ø |
Outer Ø |
Bend radius |
Max. length |
Weight |
Roll |
Article no. |
|---|---|---|---|---|---|---|
| 5 | 7 | 17 | 50 | 0.05 | 50 | 10830079050 |
| 6 | 8 | 20 | 50 | 0.06 | 50 | 10830089050 |
| 8 | 10 | 25 | 50 | 0.07 | 50 | 10830109050 |
| 11 | 14 | 34 | 50 | 0.12 | 50 | 10830149050 |
| 14 | 17 | 40 | 50 | 0.15 | 50 | 10830179050 |
| 16 | 19 | 45 | 50 | 0.17 | 50 | 10830199050 |
| 18 | 21 | 50 | 50 | 0.19 | 50 | 10830219050 |
| 23 | 27 | 67 | 50 | 0.32 | 50 | 10830279050 |
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 qualified per the central standards for cable protection conduit and IP classification. EN/IEC 60529 IP 40 is the primary reference.
- EN/IEC 60529 IP 40. International classification of enclosure sealing - 4 = tight against foreign objects over 1 mm, 0 = no water protection.
- RoHS Directive (2011/65/EU). Restriction of hazardous substances. Manufacturer declaration on file.
- REACH (EC 1907/2006). Registration of chemical substances. Manufacturer declaration on request.
- EN 50525. European standard for flexible low-voltage cables. Relevant for cable protection.
- VDE 0282. German standard for flexible cables.
- ISO 9001:2015. Quality management system at the manufacturer. Ensures each batch follows the same specification.
- AISI 304/316. American specification for stainless steel grade. Manufacturer confirms that the hose's steel strip meets this grade specification.
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
METAL HOSE VA 108 AD is used where fixed-installed cable protection must tolerate very high temperatures - typically in metal and glass industry, engine test facilities and chemical production where the simpler construction is more economical than the Agraff variant.
Steel and metal industries use the hose for cable runs near smelting furnaces, rolling mills and hot-processing stations. The corrugated construction is stiff enough to retain its shape in long runs without extra brackets, while tolerating the +400-600 C these zones can reach. Cabling costs over several years are typically 30-50% lower than the Agraff variant in the same environments.
Engine and generator test benches use the hose for cable protection near exhaust systems. The simpler construction is practical here because the installation is typically fixed (the hose is not moved during operation), and heat resistance matches the Agraff-VA's. The difference is primarily that 108 AD's less flexible construction makes it fit better in tight installation routes.
Industrial ovens, fire test facilities and thermal processing equipment use the hose to lead cable bundles near heat zones. The hose's +600 C range is better than most building material conduit solutions and is the preferred choice where local installation guidelines do not specifically require IP 65+.
Custom lengths and assemblies
The hose can be delivered cut to desired lengths. The standard roll can be supplemented with shorter pieces or multiple rolls by arrangement.
At Particulair we advise on couplings and sizing. Send us a sketch of your application and we will assess the right variant and length.
Frequently asked questions
What is the difference between 108 AD and 150 AD?
Both are stainless steel hoses without plastic coating. 108 AD has a simpler corrugated construction (fold stamping), while 150 AD is Agraff (S-shaped seamed). 108 AD is typically slightly stiffer (less flexible), but cheaper. 108 AD is preferred where the hose is fixed-installed; 150 AD is preferred where the hose is bent regularly or is part of moving automation installations.
How high a temperature does the hose tolerate?
Up to +600 C per the factsheet - same as 150 AD. It is the stainless steel construction's heat resistance that defines the limit, not a plastic coating. For continuous operation above +600 C we recommend specialised high-temperature alloys.
What does IP 40 mean?
IP 40 per EN/IEC 60529 means the hose is tight against foreign objects over 1 mm but NOT water-tight. This is typical for pure-metal conduit without plastic coating. For water- or high-pressure-cleaning-exposed installations we recommend PVC-coated 102 AD or PUR-coated 151 AD which have IP 68.
How many dimensions are in the range?
8 dimensions from ID 5 mm to 23 mm, with corresponding OD and nominal connecting-part width of 7-27 mm. Note that 108 AD has a special property: the factsheet specifies that OD and nominal connecting width are identical (unlike Agraff variants where nominal width may be slightly larger than OD due to seam surface). This simplifies coupling choice.
Which couplings are recommended?
For VA stainless steel hoses, stainless steel (AISI 304/316) or brass cable glands (PG or M thread) are recommended. Choose the same metal grade as the hose to avoid galvanic corrosion in moisture. We typically fit couplings to the hose by arrangement.
Is the hose suitable for cable runs that are bent regularly?
108 AD's corrugated construction is less flexible than the Agraff variant 150 AD. For cable runs that must be bent multiple times daily - e.g. in robots or moving automation arms - we recommend 150 AD. For fixed-installed cable runs in high-temperature zones, 108 AD is typically the most economical choice with the same heat resistance.
How long does the hose last?
Stainless steel construction has long service life - typically 15-25 years in dry indoor installations and 10-15 years in humid or corrosive environments. The absence of plastic coating is not a service life limitation because there is no coating that can fail; the metal construction alone bears the service life. Main failure mode is typically mechanical wear where the hose is subjected to frequent bending cycles.
Is the hose ATEX-approved?
The hose has NO explicit ATEX 2014/34/EU declaration on the factsheet. As a pure metal construction it is however naturally electrically conductive. The factsheet notes 'Explosion hazard areas' under applications, suggesting the manufacturer considers the hose qualified. For formal ATEX installation we recommend cross-checking with your local risk assessment and possibly additional documentation.