There are many types of PVC hoses on the market, among which PVC steel wire hose is a common one. Compared with ordinary PVC hoses, there are more spiral steel wires inside, which play a very important strengthening role. PVC steel wire hose is also suitable for the food industry. But the raw materials should be food grade, because the hose directly contacts with food. Therefore, once there is any problem with the materials, it may contaminate the food. Then it will cause harm to the human body. So what are the excellent performance characteristics of PVC steel wire hose, and how to identify PVC steel wire hose?
Appearance color
Mainly transparent, with spray-painted black code for full-transparent tube specifications, pressure and other data, and another type is painted with red and blue lines and black code.
Use characteristics
When using, the length of the hose can be cut arbitrarily, it can be bent freely, easy to move, strong operability, and can be put into a circle for storage, occupying small space.
Performance characteristics
Good corrosion resistance, cold resistance, pressure resistance, no aging, no deformation, good weather resistance, non-toxic and odorless.
Applicable scope
Mainly used in agriculture, industry, engineering, mines, oil depots, petrochemical equipment, etc.
Check whether the inner cavity of PVC steel wire hose is regular and the wall thickness is uniform. The inner cavity and outer edge of good quality PVC steel wire hose are regular circular or annular, and the wall thickness distribution is uniform.
Check whether there are bubbles and impurities on the inner wall of PVC steel wire rubber hose pipes. The tube wall of good quality PVC steel wire hose is transparent, without any bubbles or impurities. If the quality is poor, there will be bubbles or impurities. If the color of PVC steel wire hose is yellow, it means that its quality is also problematic, which may be caused by improper manufacturing, transportation or storage.
Smell whether PVC steel wire hose has irritating odor. Good quality PVC steel wire hose has no other irritating odor except for a little plastic odor, while poor quality PVC steel wire hose has unpleasant stimulating odor.
Feel whether PVC steel wire hose has good hand feeling. The inner and outer tube walls of good quality are smooth, and the hand feeling is good, while the poor quality hose is rough.
When measuring the wall thickness of PVC steel wire hose, the middle tube should be selected as the measurement sample to ensure accurate measurement of wall thickness.
PVC steel wire hose has the characteristics of high strength and good flexibility. The strength and toughness of the steel wire can be tested by folding it repeatedly to judge the quality of PVC steel wire hose. The steel wire of good quality PVC steel wire hose is not easy to break, while the steel wire of poor quality will break after a few folds.
