We conduct hydrostatic tests and non destructive proof test for all goods before delivery..
This is a brief about the Goodline / Gutteling test procedures for new Composite Hoses.
- Hose is straight, horizontal and supported
- Measure hose assembly length and register
- Water should be used as test liquid
- Remove all air out of the hose assembly, by purging with water (do not stand in front of the hose assembly during testing)
- Raise pressure to 1,7 bar, hold 2 minutes
- Measure hose assembly length and register
- Raise pressure to 1,5x design pressure
- Hold the pressure for 5 minutes, check the hose on leakage
- Measure hose assembly length and register
- Release pressure to 1,7 bar, measure hose assembly length and register
- Drain water out of the hose
- Measure electrical conductivity
To approve hose assemblies, following criteria shall be followed:
- Elongation : not more than 10%
- Electrical conductivity : ? 2,5ohm/m for sizes less than 50mm
? 1,0ohm/m for sizes 50mm and above
- Leakage : no leakage allowed
- Final result conclusion for determin the pass point is combining the test result
and good quality hose knowlege.
!!! IMPORTANT !!!, Hazard emergency may occur.
Perform this procedure with trained personnel.
Visual assessments that we have studied for years added an assessment of the feasibility of hose quality.