Pulse Test
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Test Methods for Hose Assemblies


Pulse Test

The pulse test is a service life test for hose assemblies. It comes very close to conditions encountered in practice. Our fittings are mounted on hoses of various manufacturers and pulse tested in order to guarantee the best possible production quality.

 

 

During the test, the test samples are exposed - usually under static bending loads and installation at 90° or 180° - to continually increasing loads between almost zero pressure and a value, depending on the type of hose, of 20% to 33% above working pressure. The load change frequency is ± 0,25 Hz. The dicisive statement of the pulse test is the number of load changes until failure of the hose assembly occurs.


 

 

The minimum service life requirements in the pulse test are as follows:

 

Type of hose Number of
load changes
Pulse pressure in % of
permissible working overpressure
2TE 100.000 125
3TE 200.000 133
1ST/1SN 150.000 125
2ST/2SN 200.000 133
4SP/4SH 400.000 133
R15 500.000 120