PVC steel wire hose is widely used in agriculture, industry, construction and other fields, its quality directly affects the use of effect and safety. How to judge the quality of PVC steel wire hose? This guide will introduce you to several simple and practical methods.
What is a PVC steel wire hose?
PVC steel wire hose (also known as PVC steel wire pipe, reinforced pipe, spiral pipe, mesh hose) features a three-layer structure. The inner and outer layers are soft PVC plastic, while the middle layer is steel wire reinforcement.
5 ways to judge the quality of PVC steel wire hose
(1) Appearance method
- Glossiness: The wall of high-quality PVC steel wire hose should be smooth, free of bubbles, impurities and cracks.
- Color: Under normal circumstances, high-quality PVC steel wire hose color uniformity, there will be no color difference or poor color.
- Threads and knots: Observe the ends of the hose and check whether there are obvious threads or knots. High-quality hoses are usually finely processed, and the threads are in a neat state, with no protruding or loose threads.
(2) Touch method
- Feeling: Touch with your hand with a lubricating feeling, the surface is like coated with a layer of wax (chemically known as wax feeling), this is a non-toxic polyethylene film bag, while the PVC film is a little sticky to the touch.
(2) Hardness: gently pinch the wall of the tube with your fingers, a high-quality hose should have a certain degree of hardness and will not be easily deformed.
(3) Bending test method
PVC steel wire hose usually needs to be bent during use, so its flexibility and pressure resistance are very important. You can perform a simple bendability test to evaluate the quality of the hose:
- Bend radius: Gently bend the hose along its length axis and observe whether the hose can bend naturally without noticeable deformation or cracks. A good quality hose usually has a small bend radius requirement and will retain its shape after bending.
- Pressure Resistance: Bend the hose to its minimum bend radius and apply light pressure. Observe if the hose can withstand the pressure without cracking or deformation. A high quality hose should have good compression resistance and be able to withstand certain external forces without damage.
(4) Tensile strength test
In addition to bendability, the tensile strength of PVC steel wire hose is also one of the most important indicators to assess its quality. You can conduct a simple tensile test to check the tensile performance of the hose:
- Tensile strength: Choose a small section of hose, fix it at both ends and gradually apply tensile force. Observe whether the hose can withstand the tensile force without rupture or tensile deformation. A good quality hose should have a high tensile strength and be able to withstand a certain amount of tension without breaking.
- Resilience: After releasing the tension, observe whether the hose can return to its original state. High-quality hose should have good resilience, can quickly return to the original state.
(5) Corrosion resistance test
PVC steel wire hose is usually used in various environments, so its corrosion resistance is also a factor to consider. You can perform a simple corrosion resistance test to assess the quality of the hose:
- Chemical resistance: Immerse the hose in common chemical solutions (such as acid, alkali, etc.) and observe whether the hose can withstand chemical corrosion without discoloration or deformation. High quality hose usually has good chemical resistance, can be used in harsh environments for a long time.
- Climate resistance: Expose the hose to different climatic conditions, such as high temperature, low temperature, humidity, etc., and observe whether the hose can maintain stable performance. A quality hose should have good weather resistance and be able to be used in a variety of environments.
Conclusion
By mastering the above methods, you can easily judge the quality of PVC steel wire hose, buy quality products, prolong the service life, and protect the safety. Orientflex China hose manufacturer is looking forward to cooperating with you!