Standards of hydraulic hose fittings
PVC steel wire hose is a common material in our life. While we need it in almost anywhere. For example, we need it to transfer powder and abrasive particle in industry. Thus the quality is really matter. We can use special tool and machine to test the hose. But what can we do if we don’t have such tools? Here we OrientFlex offer you some methods to check the quality of PVC steel wire hose.
First, look at the appearance
Look at the hose and see if the hose is regular and thickness is even. Quality PVC steel wire hose is a standard circle. While the wall thickness is uniform in distribution. But the bad quality hose is not like this. For example, the thick point of a DN89 and 7mm thick hose can be 7.5mm. While the thin point is just 5.5mm. Once work at a high pressure, it will cause the hose distort because of the uneven force. Besides, it may cause the hose burst and affect the normal work.
Then find out if there was any bubble and impurity on the hose. Besides, see if it was transparent. Quality PVC steel wire hose is crystal clear without any impurity. But bad hose will turn yellow in a short time.
Second, smell
Besides light plastic smell, quality PVC steel wire hose has non other chemical smells. While there is a terrible oil smell from low quality hose. Especially in hot summer, people even can’t approach.
Third, touch
Quality steel wire hose is smooth on the surface. Thus you will fell good when touch it. But you may fell tough when touch a bad quality hose.
Last, test
Cut off the both ends of steel wire hose and test if the wall thickness is even. Because some suppliers make the thickness thinner than the end.
As or the steel, you can cut off one piece and fold it. This can test the strength and flexibility. Once you break the steel wire, it means it’s bad in quality. Because you can only cut the quality steel wire with a special tool. In another hand, the quality of steel wire determines the quality of the hose. Because the problem caused by steel wire will cause distortion that is unable to recover.
Above are the methods to test steel wire hose. And hope they can help you. If you have any other questions, just contact OrientFlex.
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