дпя productions of pipes it is necessary to choose a material, starting with criterion of use of your water supply system. Pipes produce from cast iron, steel, rubber, polymers (plastic pipes) and metalplastic. In our days thanks to mass of pluses the most popular is the polymeric material. Pipes from it are simply and promptly established, they small on weight, have big term of operation and are not subject to corrosion. Also internal surface Continue reading
Many pipelines have difficult spatial structure and contain a number of different details, such as branches iron, transitions iron concentric or tees shtamposvarny.
Assembly of parts of pipelines is not difficult and consists of several steps:
1. Before pipe assembly, iron and other details laboriously smooth out tees, releasing them from stuck грязищи, scales and rusts. It is most ideal to create cleaning by means of the electronic or Continue reading
The 1st standards of pipes can be met in historical chronicles of times of the Roman Empire, also at excavation of the cities of the Old East. At that time they were made of a tree, namely – a bamboo, also from clay, and did one of 2 functions or worked as a water supply system, or – as sewer branch. But already in Old Rome started to try to create pipes from metal, in particular from lead of which was at that time extracted very much and it Continue reading
It is necessary to hold in the head that welding of welded pryamoshovny pipes has certain features, namely, seams of adjoining pipes should be shifted on the third part of length of a circle (40мм and least) or on 100мм (a diameter more pipes more 100мм). Flanges iron are welded so that the mirror of a flange was strictly perpendicular to a pipe axis that is reached by introduction of a special square.
The distance from a welded seam prior Continue reading
Systems of the sewerage represent built in walls, a floor, the earth of a pipe which are created for a conclusion, also removal of the rain water, the fulfilled water, from the house, a yard, inhabited yards, streets, the areas, roads. Systems of water drainage exists strongly much, but we will make out systems of the sewerage more popular and quite often used in modern construction.
The most 1st system dot whirlpool – this system means itself Continue reading
For pipeline laying though what mission, high-quality pipes are necessary. There are many versions of such products suitable for these purposes as creation of accurate equipment, cryogenic equipment, a pipe are used in shipbuilding, aircraft industry, mechanical engineering, in a car and the chemical industries. But we will have a talk about the goryachedeformirovanny.
Pipe seamless goryachedeformirovanny GOST 8732-78 assortments on an external Continue reading