Short answer
Hose selection for chip and granule transfer is made according to particle size, shape, sharpness, temperature and flow conditions. Abrasion resistance or nominal diameter alone is not enough to determine the suitability of the line, including the fittings.
Technical explanation
Abrasive material can wear the inner surface; sharp chips can have a cutting effect. Bends and local constrictions affect the movement of the material and the location of damage. Moist material can also raise a material resistance question with an unsuitable PU construction. The electrical properties and end assembly of the hose must not be left independent of the requirements of the process concerned. In addition to the inside diameter, the internal bore of the fitting is also part of the flow path.
Topic-specific checkpoints
| Item | Description |
|---|---|
| Material | Particle shape, size, temperature and moisture |
| Hose | Wall and application limits |
| Bend | Local load and constriction |
| End bore | Risk of snagging, leakage and wear |
How is it assessed in practice?
Add to the failure record identifying information about the conveyed material, obtained by a safe method, and a photo of the damage location. Classify wear at the bend, cutting at the hose mouth and external friction separately. For an alternative product, compare wall, flexibility, moisture resistance and maintenance access instead of a one-off 'make it thicker' request. The inspection plan, carried out during a safe stoppage, should also cover hidden thinning and loosening of fittings. Do not directly compare the service life of the new product and the old product under different operating conditions.
Original editorial recommendation; not a clause of a standard.
Frequently asked questions
Does a thick wall alone extend transfer life?
It does not guarantee it. Material selection, routing, flow conditions and external mechanical effects are decisive together.
Source coverage
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S036
Industrial Hose Safety Connections Gates · accessed 2026-10-19 PDF pp. 6–8 construction and selection; pp. 10–19 maintenance; pp. 21–27 special services
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S038
Microbe-resistant and hydrolysis-resistant hoses Masterflex · accessed 2026-10-19 Materials for hydrolysis-resistant and microbe-resistant hoses