In most cases, without any testing tools and testing conditions, we can roughly identify the quality of PVC steel wire pipes based on vision, smell, touch and other senses.
1. Observe if the wall of the pvc steel wire hose is regular and if the wall thickness is even. The inner cavity and outer edge of good quality PVC steel wire hose are in a standard circular shape. While the annular pipe wall is even. Let’s take a hose with an ID 89mm and a wall thickness of 7mm as example. The thickest part of the poor quality hose can reach 7.5mm. While the thinnest part is only 5.5mm. If it works under high pressure, it is easy to unevenly stress on the pipe wall. Then it will cause the PVC steel wire pipe to burst or deform.
2. The inner and outer walls of the high-quality PVC steel wire hose are smooth and feel good. While the low quality hose is rough.
3. Check if there are bubbles or other visible objects on the wall. Besides, check if it is clear and transparent. The wall of the high quality PVC pipe is crystal clear without any impurity. But there will be yellow on the bad quality PVC hose. While it may because of the aging or bad storage for long term.
4. Except for a little plastic smell, the high quality steel wire hose has no other smells. But inferior steel wire hose has a diesel smell. In the hot summer, people even can’t get close to them.
5. When measure the wall thickness, cut off both ends of the PVC steel wire hose. Then choose the middle section as a sample. Because some suppliers offer the bad quality hose. While the middle section is thinker than the ends.