Water supply pipe is an important part of the municipal engineering. It relates to the city water usage and the safety drinking water of people. Once there is any problem on the pipe, people’s living life will be seriously influenced. Even the whole water supply system has to shut down. Therefore, knowing the problems and the reasons are really matter. This piece let’s learn some quality problems of large size water supply hose.
The corrugation on the surface
The reason cause such problem is that the improper size of sealing ring in the production. It cause shock, then cause corrugation on the surface. However, there is another reason that that the cooling is not insufficient.
For such problem, you can check the size of sealing ring in the vacuum slot. If it’s small, reduce the vacuum property, then increase the vacuum of the second section.
Pits on the inner wall
This problem is because that not clean up the inner wall of neck mould and core mould. Then, the local high temperature cause aging. The impurity in the raw material can also cause such problem. Therefore, you should check the purity of raw material strictly before put into production. Besides, you should check the temperature sensor regularly.
The surface is not smooth because the melt temperature is not that suitable or use bad quality raw material. Thus you have to change high quality raw material, you should adjust the melt temperature as well.
Scratch on the surface
There is scratch on the surface because there is sand or stone on the sizing sleeve, support board or sealing ring. So you’d better clean them regularly.
Groove on the inner wall
The reason is that the pipe is too thick, so the melt can’t cool. Then the flow appears. You can try the central cooling system or reduce the temperature of neck mould and core mould.
Here are the common problems in water supply pipe during the production. OrientFlex is a professional manufacturer of hoses integrates research & develop, product and sell and export. Since we set up in 2006, we have exported our hoses to over 130 countries. Now we are searching for global agents, then do you want be our partner? Contact us now and start our business.