In the previous article, I already told you about the marking of fittings made of polypropylene. Today I will make a brief analysis of the market of this product in Ukraine. Fittings from PPR It is important to start from talking about the materials from which the fittings are made. To do this, the best option is male with an external thread. Since it in itself combines two basic materials - polymer and metal. As a plastic, in most cases a random polypropylene copolymer of the third type PPR is used. As for cheaper products, other components (for example, chalk) can be added to the primary and secondary polymer, which impair the properties of the plastic. Accordingly, higher-quality plants use only primary raw materials in granules. If you study the issue of hydraulics, you can see that the first positions are occupied by the brands Dizayn, Valtec and Fado. Since they have a larger cross-sectional size than other manufacturers. An important factor in the ins...
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