Тепло, вода и полимерные трубы

In previous article, I talked about types of press fitting systems for metal pipes . It differ in material from which it made - copper, stainless and carbon steel. The latter type is the most economical option. Although it has limited scope. This is due to some technical features. That's about it today and I will tell. Pict.1 Carbon steel fittings from Frabo (Italy) Material Elements of systems made of carbon steel. Depending on the application, factory and type of element, steel grade may be different. Fittings usually made of next steel grades: - 1.0225; - 1.0034; - 1.0038. Steel grades that are used to pipes producing: - 1.0215; - 1.0220; - 1.0031; - 1.0034. In the bulk of the products for heating systems, manufacturers use steel E195 (1.0034), for fire extinguishing systems (splinkers) - E220. The main differences are in the physical parameters of the material (pls see tab.1): Tabl.1 Characteristics of different steel grades A...

Polymer systems more and more intensively fill the shelves of plumbing stores, manufacturers' catalogs, building projects, etc. This is due to numerous benefits. Compared to metal systems. Weight, transportation, price and, very importantly, ease of installation. What is the "plastic" loses the "metal" so it is in temperature resistance and in time of operation. A significant lack of installation is compensated by modern press fittings for metal pipes. Today we will talk about the reviving systems of metal pipelines. Pict.1 Stainless stell press fittings of Geberit Types It depend on the material of the pipes and fittings. There are 4 main types of systems on the market: - copper; - carbon steel; - stainless steel; - CuNiFe. The choice of material depends on the application. The only exceptions are the latest stuff. He has a narrow "specialization". It is used in systems that are in contact with seawater. Therefore, I will consi...

First of all, underfloor heating (UFH) is associated with pipes, insulation and manifolds. Pump-mixing units are not always remembered. Someone because of misunderstanding how to set up, where to put, and most importantly why? Someone because of the high cost. However, this site - the basis of panel heating. Let's look at the options for units that are on the Ukrainian market. Pict.1 Mixing unit of TM-3 FIV Functionality Floor heating is a type of low-temperature system. For a number of reasons, the water must be supplied to the pipelines with a temperature below 55 ° C. In our country, "warm floors" are often combined with radiator heating. The latter works with a heat carrier with a high temperature (above 55 ° C). This is where the pumping and mixing unit (MU) finds itself. It produces a decrease in the temperature of the water to the calculated value for underfloor heating. By mixing two streams - hot (from the main pipe of the heating system) and cooled (...

Every year the heating market is changing. New brands are emerging, new technologies are being introduced, and new development trends are emerging. Here is one of them - the popularization of PERT pipes for floor heating. What distinguishes this material from cross-linked polyethylene, I described in a previous article . Today I want to make a brief overview of the Ukrainian market for these pipes. Pict.1 PERT pipes The segmentation of brands representing this pipe I would divide by geography. By the place of production. Most are in Western Europe - Germany (TECE), Austria (Herz), Italy (Emmeti, RBM, Unidelta, Watts, Immergas), Czech Republic (Wavin, FV Plast), Poland (KAN Therm, Capricorn, Tweetop). The rest - Turkey, Romania, Ukraine and China. Maybe other countries. But this is difficult to verify due to the inaccessibility of the documentation. In the middle and lower price categories are - Valtec, Valrom, SPK, ASCO, Koer, ASG, Blue Ocean, Baux, VS Plast and others. ...

The market economy has opened the door to our country for many goods. Technology first surprised, and then took their unshakable place in everyday life. More and more often, the ephemeral effect began to appear. Simply put, when the brand name becomes a household name. For example - Xerox, Pampers, Thermos, etc. As for the heating market, there are similar cases here. For example - radiator valves. With the development of technology and the expansion of the types of heating appliances, the market of valves for the connection has also started to develop. Now the most popular valve for radiators is a R5TG valve from Giacomini. In addition to compactness and a memorable "exterior", it has a comfortable handle. The decision to place the company's logo (the girl pouring out water) contributed to the identification of the brand and its promotion. Perhaps the most phenomenal chip of the crane was and is the presence of a retaining ring with a seal on the union. N...

The law "The more the better" does not always work. In DBN B.2.5-64: 2012 it is indicate that the pressure in the water supply system should not exceed a value of 4.5 bar. This is necessary for the stable operation of sanitary equipment and household appliances. If this value is exceed, the pressure reducer valve should be install. Today we will talk about them. Base information The name of this armature comes from the English word "reduce". Accordingly, the main task of the pressure reduce valve (PRV) is to reduce the water pressure. 95% of the gear units have a tuning screw or knob for setting the required pressure. To make the correct adjustment, you need a pressure gauge. Some models are equipped with gauges at once, but for the majority, it must be purchased separately. Pict.2 The appearance of the piston PRV Principle of operation PRV works on the principle of "after themselves". Water first passes through the worki...