PVC hose is one kind of industrial hose. It is made with PVC as the main material and certain auxiliary materials to form a certain formula. The so-called PVC material is actually a general-purpose synthetic resin with a chemical composition of polyvinyl chloride, and it can be seen everywhere in our daily life. For example, it is widely used in electronics. After baking the PVC hose, it can be wrapped on the wire to play the role of insulation.
So how do you select the material of PVC hose? There are many types of PVC hoses. PVC fiber reinforced hoses and PVC steel wire pipes have different parameters. We will analyze these problems below.
1. The barrier properties of PVC hose materials
If the packaged product is an extremely volatile content such as essential oils, we have to choose a five-layer co-extruded tube with an oxygen transmission rate of 0.2 to 1.2 units. Because this kind of PVC hose pipe has better barrier properties than ordinary ones.
2. Stiffness of PVC hose material
Generally speaking, different flexible hose manufacturers have different requirements on the stiffness of PVC hose materials for packaging products. Under the ordinary condition, high-density polyethylene is better than low-density polyethylene, and the required stiffness can be achieved as soon as possible by adjusting the blending ratio.
3. The selection of PVC hose material
First of all, the material of the PVC flexible hose pipe must meet the requirements of relevant national health standards, and some harmful substances such as heavy metals must also be controlled within a reasonable range in accordance with regulations.
4. Chemical resistance and weather resistance of PVC hose material
Similar to stiffness, high-density has better chemical resistance than low-density. Weather resistance must control the choice of varnish types and color masterbatch types. PVC hoses are also widely used in construction. For example, they can be molded into different types of casings after high-temperature heating, which can be applied to the protection of electrical appliances and many circuits.
1. PVC fiber reinforced hose
This PVC plastic hose includes many categories, such as PVC car wash pipe, PVC garden pipe, PVC gas pipe, oxygen acetylene pipe, etc. They all belong to this PVC hose. What are the parameters of PVC fiber reinforced hose. Basically, there are inner diameter, outer diameter, working pressure, bursting pressure, meters per piece and appearance color. In terms of pressure, there are Three-layer glue and two-layer fiber reinforced sting structure, two-layer glue and one fiber reinforced string structure, and three-layer glue and two-layer fiber reinforced sting structure, etc.
2. PVC steel pipe
The parameters of PVC steel pipe are almost the same as those above, but there is basically no concern about the pressure, because PVC steel pipe is mostly used in negative pressure places, so the pressure at work is generally very low. However, the difference is that PVC steel pipe is also divided into low temperature resistance and high temperature resistance. The place of use is known according to the literal meaning.
