Three methods to distinguish the quality of PU steel wire duct hose
In life, we may encounter low-quality nitrile oil-resistant hoses. This is manifested in the fact that both the inner and outer layers of the hose wall are oil-resistant rubber. Too tight or too loose steel wire weaving, uneven hose wall thickness, too few steel wire layers, and poor air tightness of the outer rubber layer will cause steel wire rust, which will result in reduced hose bearing capacity. Eventually, the thin part of the hose wall will burst. Next, Orientflex will explain to you how to distinguish the quality of oil-resistant hoses.
If the hose has the following conditions, it means that the quality of the nitrile oil-resistant rubber hose is poor.
1. The deformation of the hose after pressurization (elongation, shortening or bending deformation) is large
2. The air tightness of the outer layer of rubber is poor, which will cause the steel wire to rust
3. The thickness of the hose wall is uneven
4. The steel wire is woven too tightly, too loosely or the number of steel wire layers is too small
5. The inner layer of rubber has poor sealing, which allows high-pressure oil to easily enter the steel wire layer, reducing the service life of the hose
6. The adhesion between the rubber layer and the steel wire layer is relatively poor, and the strength is insufficient.
If the high-pressure rubber oil hose you bought has the above problems, it means that the pipe will show a decrease in bearing capacity. Eventually, it may cause a burst in the thin part of the pipe.
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