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For proper and safe use it is important to select the right type of hose. Please check the applications with your customers. Inform your customer about the limits of the product.
Usually refer to the standards of DIN 7716 or DIN EN ISO 8331.
In order to ensure a safe function and the longest possible service life of the hoses, the following cleaning recommendations should be observed.
Cleaning before first use
Food hoses may have a slight inherent odor, which is unavoidable in production and can be eliminated by appropriate cleaning. We therefore recommend the following cleaning procedure before first use:
After the first rinse, the following cleaning cycles should be performed:
In all cases, intermediate and final rinsing with drinking water must be carried out!
If the hose still emits odors, several cleaning processes should be used in succession.
After use or at regular intervals, the hose should be treated with a commercially available cleaning and disinfectant. For detailed information and to select suitable detergents and disinfectants, please contact the manufacturer.
Please keep in mind our recommendations regarding the storage and maintenance of hoses.
Hot bitumen hoses must not be bent behind the fittings. Therefore place all bends in the middle of the hose and lay them in a much larger curve.
Do not close hot!
Hot hoses must not be closed because a negative pressure is created when they cool down. At a temperature decrease from 200 °C to 0 °C in a closed hose line a vacuum of over 0.4 bar will be formed and the layers can be separated.
Cleaning with a blowtorch?
The couplings and the hose lines must not be warmed up with the blowtorch. This can damage the hose. Due to the goodthermal insulation of the thick rubber hose wall, the hot bitumen remains hot until the end and can therefore leak completely.
Hot bitumen hoses must not be used under any circumstances if the outer rubber layer have been separated, if the pressurebearing fabric inserts are visible, or if the hose kinks. The hose have to be repaired immediately (shorten until the cut shows dry and firmly connected fabric layers again). Installation may only be carried out by authorized specialists. A pressure test is essential after the repair.
Danger of injury appears at high operating pressures, high operating temperatures and hazardous fluids. The exact suitability of the product must be clarified only in individual cases. If anything is unclear, immediately call your expert advice.