In most cases, there are no testing tools and testing conditions. But we can roughly identify the quality of the PVC steel wire hose based on the senses of vision, smell, touch and so on.
(1) Observe whether the lumen is regular and whether the wall thickness is uniform. The inner cavity and outer edge of the high-quality PVC steel wire hose are standard circular, and the annular hose wall is evenly distributed.
(2) Observe whether there are bubbles or other visible objects on the wall of the PVC steel wire hose, and whether it is colorless and transparent. The wall of the high-quality PVC steel wire hose is crystal clear and free of any impurities. The yellowish color of the defective PVC steel wire hose may be caused by decomposition, aging or long-term improper storage during the production process due to improper handling.
(3) The high-quality PVC steel wire hose has no smell of other petrochemical products except a little plastic smell. The inferior steel wire hose hose has an unpleasant pungent diesel smell. Especially in the hot summer, people can’t get close to it.
(4) The inner and outer hose walls of high-quality PVC steel wire hose are smooth and feel good, while those of low-quality hoses are rough.
(5) When measuring wall thickness, both ends of the PVC steel wire hose should be cut off, and the middle hose should be selected as a sample for testing to prevent some illegal manufacturers from making fuss on both ends of the hose. The actual wall thickness is thinner than that of two ends of the hose.
(6) Cut a few centimeters of steel wire at both ends of the PVC steel wire hose, and fold the steel wire repeatedly to measure the strength and toughness of the PVC steel wire hose. Poor quality steel wire will break after one or two folds.
The steel wire of high-quality PVC steel wire hose needs special tools to cut off. The quality of the steel wire determines the quality of the entire hose. The PVC steel wire hose with quality problems caused by the steel wire is prone to irreversible deformation.
The above are some of my understanding of steel wire pipes. If you have any questions, you can contact us and we will answer them for you.