1. Physical and mechanical properties of rubber mateial
Items |
Data |
Inside rubber strata |
Outside rubber strata |
Strain stress Mpa≥ |
120 |
10.0 |
Elongation ratio when broken % ≥ |
450 |
420 |
Hot air ageing 70℃×72h |
Strain stress % |
+25 ── -25 |
Elongation ratio when broken % |
+10 ── -30 |
Attrition cm3/1.61km |
0.7 |
2.Hydraulic Properties：
The draining rubber hose shall be no abnormal change such as leakage or partial bulging when tested under stable pressure of 1.5 times higher than rated working pressure.If the buyer has specific requirements on working pressure of draining rubber hose, we can design as per the buyer's designation, the explosive pressure shall not be 3 times lower than rated working pressure.
When executing the deforming test to draining rubber hose, the variance on length and outer diameter shall not go beyond the data as listed in Form2. |
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