Spiral and performance classes
Spiral and performance classes: scope, limits of use and technical checkpoints.
5 guides
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Where are spiral wire hydraulic hoses used?
In spiral wire hydraulic hoses, the reinforcement is formed with a wire arrangement different from braiding. This construction is seen in product families used in heavy hydraulic applications. For selection, the pressur…
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The constant pressure class approach for hydraulic hose
A constant pressure hose family means that the sizes within a defined product scope are offered according to a common working pressure class. It does not mean the pressure is kept constant inside the hose by itself. Tem…
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What does impulse performance mean?
Impulse resistance refers to performance under repeated pressure cycles. Passing a single hydrostatic test does not mean the same impulse life has been verified. A cycle count should only be compared together with the t…
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How to compare high flexibility claims
Flexibility is not measured by minimum bend radius alone. The force required to bend, limits for dynamic use, twisting behavior, weight and connection geometry also matter. The comparison should be made at the same size…
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When should braided and spiral construction be compared?
The choice between braided and spiral wire hose is made according to the pressure and impulse requirements of the application and the installation conditions. Neither construction is unconditionally superior to the othe…
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