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Getting the right hose assembly for the job

Studies conducted by fluid power parts manufacturers indicate that the three most common causes of hydraulic hose failure are: abuse, misapplication and improper routing. Equipment operators and technicians can reduce, if not eliminate, premature hydraulic hose failure by giving maximum consideration to hose assembly selection and installation.

At Gates, we suggest using the STAMPED method to be sure that you get the right hose assembly for the job.

Once the right components and right assembly have been identified, the assembly has to be properly installed and routed.


S Size
T Temperature
A Application
M Material
P Pressure
E Ends/Couplings
D Delivery

Size - The inside diameter of the hose must be adequate to keep pressure loss to a minimum and avoid damage to the hose due to heat generation or excessive turbulence.

Temperature - The hose selected must be capable of withstanding the minimum and maximum temperature seen by the system.

Application - Determine where or how the replacement hose or assembly is to be used. You will need to know the equipment type, working and surge pressures, fluid to be used, bend radius, electrical conductivity, etc.

Material to be conveyed - Product selection must assure compatibility of the hose tube, cover, couplings and O-rings with the fluid used.

Pressure - Complete understanding of the system pressure, including pressure spikes. Working pressures as published in the Gates Hydraulic hose, couplings & equipment catalogue must be equal to or greater than the system pressure.

Ends or couplings - Identify the type of threads the system uses and select a coupling that is compatible with that thread type.

Delivery - Ensure the hose is correctly sized to efficiently transport fluid.


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