How to identify the pros and cons of pvc steel wire hose?
In most cases? Without any testing tools and testing conditions? We can roughly identify the quality of PVC steel wire pipes based on the senses of sight, smell and touch.
1. Observe whether the lumen is regular? Whether the wall thickness is uniform. The inner cavity and outer edge of the high-quality PVC steel wire pipe are standard round and evenly distributed on the annular pipe wall. Take the PVC steel wire pipe with an inner diameter of 89mm and a wall thickness of 7mm as an example. The thickest part of the pipe with poor quality can reach 7.5mm, and the thinnest part is only 5.5mm. It works under high pressure? It is easy to receive uneven force on the pipe wall. Cause the PVC steel wire pipe to burst or deform? Affect normal use.
2. Observe whether there are bubbles or other visible objects on the wall of the PVC steel wire pipe? Whether it is colorless and transparent. The wall of the high-quality PVC steel wire pipe is crystal clear? Without any impurities. The yellowish color of the defective PVC steel wire pipe 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 pipe has no smell of other petrochemical products except a little plastic smell. And the inferior steel wire tube has an unpleasant pungent diesel smell? Especially in the hot summer? People can't get close.
4. The inner and outer walls of high-quality PVC steel wire pipes are smooth? Feel good? But low-quality pipes are rougher.
5. When measuring the wall thickness? Should cut off both ends of the PVC steel wire pipe? Choose the middle pipe as a sample test? Prevent some illegal manufacturers from making fuss on both ends of the pipe? The actual wall thickness is thinner than the two ends of the pipe.
6. Cut a few centimeters of steel wire at both ends of the PVC steel wire pipe? Fold the steel wire repeatedly? Check the strength and toughness of the steel wire. Poor quality steel wires will break after one or two folds? High-quality PVC steel wire pipes require special tools to cut them off. The quality of the steel wire determines the quality of the entire pipe? PVC steel wire pipes with quality problems caused by the steel wire are prone to irreversible deformation.