Testing procedures



STANDARD TESTING PROCEDURE

Quality of FORTFLEX hoses is guaranteed by tests carried out even under severe operational conditions. The graph shows the pressure cyclical test curve according to DIN 20024 and SAE J 343; in the table are given the hose test parameters.

LOAD QUANTITY VARIATION: FROM 50 TO 75 MINUTE
TIME/PRESSURE CURVE
 
TEST PARAMETRES
tipo di tubo
HOSE TYPE
DN n° impulsi
IMPULSES NO
pressione d’esercizio: aumento % per prova
working pressure (% test increase)
R1AT/1SN <25 150.000 125
R1AT/1SN > 25 150.000 100
R2AT/2SN//2SN-C 05:-50 200.000 133
R7 05:-50 150.000 125
R8 05:-50 200.000 133
4SP/4SH 05:-50 400.000 133
R12 05:-50 500.000 133
R15 05:-50 500.000 120
R13 05:-50 500.000 120
2TE 05:-50 100.000 125
3TE < 25 200.000 133
3TE > 25 200.000 100
 

SPECIAL TESTING PROCEDURE

Hose assemblies for very high pressure can be tested according to SAE, DIN or integrated with supplementary tests simulating working conditions other than those in the aforesaid standards.

P.P. = pulsating pressure
V. = load variation
O. = peak
 
TEST PARAMETRES
tipo di tubo
hose type
DN n° impulsi
impulses no
pressione d’esercizio: aumento % per prova
working pressure (% test increase)
4SP 05:-50 1.200.000 150
4SH 05:-50 1.200.000 150
R13 05:-50 1.200.000 150
R15 05:-50 1.200.000 150

This method involves constant temperature (continuos cycle) or variable temperature (intermittent cycle).


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