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Guide for Hose Failure Analysis
The following is to help identify the conditions that the product can see in service. It is incumbent on the user to implement a reasonable preventive maintenance program for the replacement of the hose.
Product Identification

STAMP:
Size – I.D., O.D., and length of the assembly.
Temperature – Maximum and minimum temperature of the media being conveyed.
Application – The conditions of use, abrasion, climate, heat, flexing, exposure, routing, degrees of bending.
Media – Composition of the substance being conveyed and the chemical compatibility with the hose.
Pressure – Hose assembly working pressure, including pressure spikes and surges.

Hose Storage Life
Bulk hose should be used within 10 years of the date of manufacture, providing its properly stored. Guidelines for Proper Hose Storage:
  • Leave the hose in its original box or reel.
  • Store hose in a cool, dry, and dark place.
  • Ideal temperature for hose storage is 50°F - 70°F
  • Avoid exposing hose to damaging elements such as excessive heat, direct sunlight and extreme cold.
  • Use the “first in, first out” stocking method.
  • Be careful not to crush or kink hose.
Hose Service Life of Hose Assemblies
Many factors interact to cause a hose failure.

SAE J1273 states:
“Specific replacement intervals must be considered based on previous service life, government or industry recommendations, or when failures could result in unacceptable downtime, damage or injury risk.”

Construction Equipment = 5 to 6 years
Severe impulsing and flexing = <5 years
Low pressure = Life of machine

A hose assembly's life expectancy is directly related to the operating parameters of the application.
Hose assembly failures can be the result of some form of misapplication such as abrasion, over-pressurization or failure to perform proper maintenance. The following information will provide both the most common hose failures and solutions on how to correct them.
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