Polyethylene pipes – marking
Pipes polyethylene (PE) – polyethylene pressure and water pipes are designed for laying pipelines that transport both domestic and drinking water. Also, PE pipes are used for transportation of liquid and gaseous substances, to which the material from which they are made (polyethylene) is chemically resistant. Gas pipes are designed for underground gas pipelines that transport combustible gases.
PE pipes are suitable for transporting raw materials that are used as fuel for industrial and domestic use. When designating polyethylene pipes (PE pipes), the SDR parameter is indicated – this is the ratio of the nominal outer diameter of the pipe to the nominal wall thickness. Polyethylene pipes are made from various grades of polyethylene. At the dawn of the “polyethylene era” in water supply, the most common “pipe” polyethylene was PE 63. But over time, PE 63 polyethylene was discontinued in almost all factories. Today, polyethylene pipes are made from PE 80, PE 100. Visually, these pipes differ in wall thickness. The pipe has a higher strength, therefore, to achieve the desired SDR, a smaller wall thickness is required and, as a result, a lower cost of the pipe.
PE 80 pipes
Polyethylene pipes – irrigation Low pressure polyethylene pipes (HDPE pipes) are nothing but one of the varieties of plastic pipes that have received wide recognition in recent years. Pipes PE 80 are designed to withstand the pressure of the working environment from 1/2 to 8/5 megapascals. The minimum pipe diameter is 16 millimeters, the maximum is 1200. The SDR parameter for PE 80 pipes ranges between 9 (minimum) and 26 (maximum). SDR for PE pipes is a parameter that determines the ratio of wall thickness and pipe diameter. The wall thickness depends on the diameter and ranges from 0.002 meters to 0.059 meters for pe 80 pipes. Among all the polyethylene pipes ever produced by the industry, PE 80 is one of the most modern, having mechanical, chemical and physical parameters that allow them to be used in areas where steel pipes previously dominated. PE 80 pipes chronologically replaced pipes of grade 63.
HDPE polyethylene pipes
Polyethylene pipes – watering plants Polyethylene pipes are used not only for drinking water supply, but also in areas completely unexpected for a tuba. The low cost of production of polyethylene pipes, especially for technical purposes, allows the pipe to be used, for example, as a casing for cable laying. Such luxury cannot be afforded with a steel or cast iron pipe. And, of course, a technical non-pressure pipe can be used for sewerage. Although for more critical objects, especially where the pipe will have to use external loads, a corrugated polyethylene pipe should be used. Sewer pipes experience the external pressure of the soil and at the same time the absence of internal pressure. That is why polyethylene sewer pipes are made in two layers. The outer layer is dark in color, resistant to ultraviolet radiation, is made in the form of corrugations and has ring stiffness. The inner layer is smooth and white for easy damage detection. Polyethylene pipes are made from polyethylene with a minimum long-term strength (MRS), 6.3; 8.0; 10.0 MPa.
Polyethylene pipes intended for use in drinking water supply systems must be made of grades of polyethylene approved for contact with drinking water by authorities and institutions. Polyethylene pipes for technical purposes may be manufactured using recycled materials of the same brand, incl. formed during our own production and comply with the requirements of these technical specifications.
Polyethylene pipes can be supplied in the form of kits, as well as with fittings (fittings) of various shapes and purposes. Fittings are various connecting parts of pipelines installed at the places of turns, transitions and branchings of pipe links. Polyethylene pipes – water supply in the house Shaped parts must be made of the same material as polyethylene pipes. All incoming (purchased) raw materials and components must comply with the requirements of the technological documentation and these technical specifications.
The range of purchased materials and components (types, types, brands) must comply with the requirements of the regulatory documentation applicable to them. Polyethylene pipes in the supplied form and under operating conditions must be environmentally friendly and resistant to chemically active substances. Polyethylene pipes should not release harmful chemicals into the environment and have a persistent odor.
HDPE pipes are used in many industries. HDPE pipes are replacing steel pipes in water supply, sewage, heating, etc. PE 80 is used mainly in water supply and sewerage. In heating, molecularly cross-linked polyethylene is more often used. Pipes PE 80 came to replace the brands PE 32 and PE 63 as more durable. In general, PE polyethylene pipes are currently modern designs that meet the requirements of today. PE pipes are used today in other areas of technology.мену маркам ПЭ 32 и ПЭ 63 как более прочные. Вообще полиэтиленовые трубы ПЭ являются в настоящее время современными конструкциями, отвечающими требованиям сегодняшнего дня. Трубы ПЭ находят применение сегодня и в других областях техники.