Special hydraulic services
Special hydraulic services: scope, limits of use and technical checkpoints.
5 guides
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Selecting a hydraulic return line hose
A hydraulic return line should not be treated as equivalent to an ordinary liquid hose because of its seemingly low pressure. The fluid, temperature, flow rate, back pressures caused by filters and coolers, and transien…
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Vacuum resistance in a hydraulic suction line
A hydraulic suction hose must be suitable for the vacuum that will occur at the operating temperature and for the flow conditions. Being a high-pressure hose is not sufficient for suction. Collapse resistance, inside di…
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Checklist for water-based hydraulic fluids
With water-based hydraulic fluids, hose selection cannot be made based only on the phrase 'hydraulic oil compatible'. The fluid class, actual composition, temperature and manufacturer approval are decisive. The same hos…
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Compatibility in high-temperature hydraulic lines
In high-temperature hydraulic service, the conditions to be met jointly by the hose, fittings and seals must be defined. It is not assumed that the highest temperature and the highest pressure in the catalog apply at th…
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Using hydraulic hose in cold environments
For a hydraulic hose to be used at low temperature, not only the storage temperature but also cold bending and the operating condition must be verified. The behavior of the hose, seals and fluid are assessed together. F…
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