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1.Technical data.
Inner Diameter (mm) | Outer Diameter (mm) | Working Pressure (Mpa) | Bursting pressure (Mpa) | Per Roll Length (m) |
19 | 30 | 0.8 | 3.2 | 20 |
25 | 37 | 0.8 | 3.2 | 20 |
2. When conducting test in accordance with the stipulated method ,all items of performance of the soft pipe should conform to the requirements of the following table
No | Items of Performance | index Requirement Inner Outer Rubber Rubber | Samples | |||
1 | Tensile Strength MPa ≥ | 7.0 | 7.0 | Getting sample from soft pipe | ||
2 | Break Extensibility ≥ | 250 | 250 | |||
3 | (100×72h) Hot Air Aging (100×72h)
| Changing Rate of Tensile Strength,% ≥ | -20 | -20 | ||
Changing Rate of Break Extension,% ≥ | -50 | -50 | ||||
4
| Liquid Volume-Resistant Expansibility,% ≤ under Standard Room Temperture,70.2h | C Liquid | 50 | - | ||
B Liquid | - | 100 | ||||
5 | Adhesive Strength KN/m ≥ | Inner Rubber Layer and Reinforced Layer Reinforced Layer and Reinforced Layer Reinforced Layer and Outer Rubber Layer | 1.5 | Cutting a section of soft pipe from the soft pipe | ||
6 | Outer Rubber's ozone-resistance performance | No Craze Crack | ||||
7 | Hydraulic Test (Test Pressure:0.8MPa) | No leakage or Other Dfects | Whole soft pipe or soft pipe combination part | |||
8 | blasting Pressure Test,Mpa ≥ | 1.6 | Cutting off a section of soft pipe from the soft pipe | |||
9 | Volume Expansibility under 0.4MPa,≤ | 2 | ||||
10 | Maximum Electric Resistance between Pipe joints,Ω .m ≤ Stretch State, not Charging Liquid | 2×10-6
| Whole soft pipe or soft pipe combination part | |||
11 | Low Temperature Yield Strength(-10±3) | No Craze Crack | Cutting off a section of soft pipe from the soft pipe | |||
Color Rubber Hose for fuel Dispenser