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). |