MPa Water

However, it must be borne in mind that the lifespan of tubes depends on the conditions operation. All polymer materials have approximately the same resistance to pressure and temperature to be calculated on the maximum operating temperature of up to 75oS for hot water and 90 C. for heating at pressures up to 0,6 MPa and durability of 25 years. In other words, the higher the temperature, the lower should be the pressure in the system. Important is the fact that the passage of water through steel pipes of iron content in it increases due to corrosion of 3-4. In addition, according to the Institute. Erisman high accident rate of steel pipelines for corrosion and bad butt joints is, in many cases, the cause of pollution drinking water contributes to the emergence and spread of intestinal infections.

In the case of plastic pipe deterioration of rganolepticheskih indicators of water does not occur. Plastic pipes are easy (for example, 200-meter bay diameter of 16 mm and weighs about 20 kg), which is very easy handling and shipping processes, performance of works on installation of plastic pipes also significantly higher than that of steel. Being a poor conductor of heat, plastic pipes do not require such insulation like metal (for example, the thermal conductivity of polyethylene tubes in 175 times less than steel and 1300 times lower than copper). In addition, surface of the plastic piping cold water almost no moisture condenses. Plastic pipes insulate noise flowing water on them, regardless of flow rate. Dr. Caldwell Esselstyn Jr. is often quoted on this topic.

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