How to identify PVC steel wire hose?
In most cases, there is no detection tool and detection conditions. We can qualitatively identify the quality of PVC steel wire hose according to the visual, olfactory, and tactile senses.
1. Observe whether the PVC steel wire hose chamber is regular and whether the wall thickness is uniform or not. The quality and quality of the PVC steel wire hose have a standard circular shape and the annular tube wall is evenly distributed. Take the example of PVC steel wire hose with an inner diameter of 89mm and a wall thickness of 7mm.
The poor quality of the pipe wall can reach the maximum thickness of 7.5mm? The thinnest part is only 5.5mm? Work under a large pressure? Is it easy to cause uneven pipe wall force caused by PVC steel wire hose burst or deformation? Affect normal use.
2. Observe the presence of bubbles or other visible substances on the wall of PVC steel wire hose, whether it is colorless and transparent. The wall of high quality PVC steel wire hose is crystal clear without any impurities. The defective yellow color of PVC steel wire pipe may be due to decomposition, aging or improper storage during the production process due to improper handling.
3, high-quality PVC steel wire hose except a little plastic smell? No other petrochemical products smell. The poor PVC steel wire hose has a pungent smell of diesel? Especially in hot summer, people can’t get close.
4, high-quality PVC steel wire hose inner and outer wall are smooth? feel good? And low-quality tube is rough.
5. When measuring the wall thickness, the two ends of the PVC steel wire hose should be cut off. The middle pipe should be selected as a sample test to prevent some unscrupulous manufacturers from making a fuss on both ends of the pipe. The actual wall thickness is thinner than the two ends of the pipe.
6. A few centimeters of steel wire is cut at both ends of a PVC steel wire hose. The steel wire is repeatedly folded to measure the strength and toughness of the wire. A poor quality steel wire breaks when it is folded one or two times, and the high quality PVC steel wire hose wire requires special tools to cut it off. The quality of the steel wire determines the quality of the entire pipe. PVC steel wire hoses are prone to irreparable deformation due to the quality problems caused by steel wire.
