Diameter of water pipes: everything you need to know

Diameter of water pipes as the main parameter of the water supply system

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As we have already said, the diameter of plastic water pipes is one of the most important parameters of the water supply system. The quality of providing the population with drinking water depends on it. This indicator is taken into account when building new communication systems or when repairing them. It is the diameter that affects the capacity of the water supply. For example, a pipe with a large diameter is sometimes not economical from an economic point of view, but a pipeline with a small diameter can adversely affect all plumbing devices due to increased voltage and pressure.

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Main characteristics of water pipes. How not to be mistaken in the choice of

All water pipes differ not only in their dimensions, but also in the material of manufacture. Both from the first and from the second parameter the ability of the pipeline to withstand certain values ​​of water pressure depends.

There are several materials from which pipes for a water pipe are made: plastic from various polymers, metal or its combination with several kinds, and also a combination of metal and plastic.

For each of the products of this type there is a general characteristic - the size of the water pipes, which is the diameter. It is customary to divide it into external and internal, as it is established proceeding from the thickness of the walls of the product. It is the thickness of the walls that determines the level of working pressure. Steel pipes perfectly withstand high pressures, due to their strength and reliability. However, the steel pipeline is heavy, corroded, is difficult to install, and a plaque builds up on its walls, which reduces the diameter of the pipe and its throughput. Therefore, the plastic analogue drove the steel into the background. It has low weight, simple and convenient installation, relatively low cost, it is not susceptible to corrosion and formation of a coating from the inside, and also has plasticity. The only drawback of plastic pipes for a water pipe - with temperature changes it is characterized by a linear expansion. This disadvantage was eliminated due to the metal-plastic pipeline, which is more reliable and much stronger.

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How to correctly and quickly determine the diameter of pipes for the water pipe

Centimeters, millimeters, meters. .. We are used to this metric system, it seems to us simple and applicable to everything. However, it does not correspond to the calculation of the diameter of a plastic water pipe. In this case, a special metric system is used - inches( 1 "= 25.4 mm).The official designation of an inch looks a little different, for example 1 ", ¾", etc. These values ​​are used to denote the internal size of water pipes. To join products with unknown diameters, you need to calculate it, which is quite simple. As an alternative, it is easy to find ready-made translation tables on the Internet that are understandable for every person.

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In this metric system, the values ​​look similar, for example 16/1, where the number 16 is an indicator of the outer diameter, and 1 is the thickness of the product wall. It follows that the inner diameter is 15 mm.

For household plastic water pipes, the optimal diameter is 1/2 "(12.7 mm.) And 3/4"( 19 mm.).In addition:

  • pipeline with a diameter of 1/2 "(10 mm.) And 3/8"( 15 mm.) Is suitable for supplying water to various plumbing fixtures;
  • pipe diameter of 3/4 "(20 mm.) And 1"( 25 mm.) Is used as the main riser of the water supply system.

If you find it difficult to understand the required dimensions, contact the nearest construction store by naming these parameters or taking a sample with you. You will receive a free consultation, and also you will be picked up by a suitable pipeline and will recommend the fittings that are optimal for your situation.

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Table of diameter of water pipes

The data is given in the table below

Table of diameter of water pipes

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