Allstream

ALTSTREAM is a well-known manufacturer of metal-plastic pipes and the entire range of components for heating and water supply systems Each Alstream pipe consists of several layers of high-quality aluminum and plastic that can withstand maximum temperatures and maximum pressure Not only that, it's a 50-year factory warranty and easy to install In the catalog "SVK-Plast" you can find a wide selection of metal-plastic pipes, the price of which is affordable! 

Metal-plastic pipes

Metal-plastic pipes are used to install long-lasting pipelines in water supply and heating systems If you want to install Underfloor heating in an apartment, house or industrial premises where water heating will be used, we recommend that you use only Altstream products  Metal-plastic pipe is a unique multi-layer structure It consists of several protective shells made of polyethylene and aluminum tube These layers are bonded together with a special compound The thickness of the pipe can be different But, most often, each of the polyethylene components is from 1 to 1.5 mm Aluminum tube does not exceed 0.8 mm The adhesive layer is very thin It ranges from 0.01 to 0.03 mm

By purchasing a metal-plastic pipe from Altstream in TD Stroy Service, You can be sure that it will not be subjected to corrosion chips, does not rust and is completely impermeable to oxygen At the same time, you can mount the pipeline of any length. for ease of use, the pipes are supplied in coils of 100 and 200 m If you compare a metal-plastic pipe with a polypropylene one, the coefficient of thermal expansion is much lower It also benefits in temperature loads, so you can install it in hot water systems without worrying about it bursting or cracking In installation, these pipes are quite plastic, they bend perfectly Therefore, you can create even the most bizarre designs from them, without fear of breaking them They do not tolerate mechanical loads and direct sunlight If you plan to install a metal-plastic pipe from a well to a private house, be sure to bury it in a trench Even if it is small, it will provide both thermal insulation and protection from mechanical and UV influences

The working pressure of this type of pipe is up to 10 atmospheres It can be operated at temperatures from 0 to + 95 degrees Celsius The warranty period is 50 years

The range of metal plastic pipes and fittings from Altstream at TD Stroy Service is really amazing Therefore, there is a huge variety of their trade designations Now we will look at those of them that are most often found on our market The abbreviation of the designation is given with a description of the material used in the manufacture The most popular is PEX-AI-PEX, which is made from 2 layers of cross-linked polyethylene and aluminum Next in demand is PERT-AI-PEHD It uses heat-resistant polyethylene, aluminum and high-density polyethylene Also worth mentioning is PEX-EVOH It uses cross-linked polyethylene and an anti-diffusion layer, which is a kind of oxygen barrier

Two polyethylene layers in metal-plastic pipes do not have to be identical Various combinations are possible: the outer protective layer is made of ordinary polyethylene, and the inner working layer is made of mesh polyethylene (for example, PEX-AL-PE) A gas-tight shell is created using an aluminum tape, which is given a cylindrical shape by rolling in rollers Aluminum tape is used in the manufacture of pipes of greater width than the circumference of the shell   It turns out to overlap, it is welded using ultrasonic or laser technology, making the sealed tube almost infinite The longitudinal seam also strengthens the pipe It is also possible to use a technology where the edges of the tape are butt-welded The aluminum shell in each pipe is located in the middle The REX construction is characterized by high strength and resistance even to high temperature conditions Therefore, it is ideal for hot water supply But, unfortunately, it can not be welded due to the fact that the plant was made cross-linking linear molecules of polyethylene Therefore, in order to mount the pipeline, you must use a crimp fitting

Altstream has a slogan that they are unquestioningly loyal to For them, quality is always above all else That is why if you buy these metal-plastic pipes, they will work perfectly even under the influence of high temperatures They are also not afraid of high working pressures They will serve you for a long time without any malfunctions It is also worth noting that they are not subject to corrosion and are resistant to chemical reagents There is almost no roughness, so the pressure loss during transportation is minimal A layer of high-quality aluminum does not allow oxygen to penetrate inside It also makes the coefficient of linear expansion minimal

PE-X plastic pipe is a structure made of cross-linked polyethylene It is practically immune to direct UV rays It is also quite plastic, but it can restore its original shape You can mount it either on top or in concrete

PE-Xb cross-linked polyethylene pipe is used for hot and cold water supply It works at temperatures up to 95 degrees Celsius The operating pressure of its use is no more than 10 atmospheres

PE-Xb cross-linked polyethylene pipe with a unique EVOH oxygen barrier is used in hot and cold water supply, heating or Underfloor heating systems The material for it is cross-linked polyethylene with a unique outer layer that does not allow oxygen to penetrate inside All products meet the standards of GOST R 53630-2009

Fittings

Fittings for connecting metal-plastic pipes are compression and press fittings In the first case, they are crimped and do not require expensive equipment during installation Press fittings or all-in-one structures are installed using press tongs

Metal plastic pipes are connected to each other best by means of collet fittings They create a strong, reliable connection that will last for a long time This type of installation can be called the simplest, since it requires a minimum set of auxiliary equipment Such a connection is considered collapsible In order for it to work without problems, you need to periodically tighten the cap nut

Collet fittings are made of high quality brass They have a fairly high level of rust resistance Excellent strength is provided by using the hot stamping method in production The design has two o-rings, a sealed gasket and a collet

On the packaging of each fitting, installation instructions and full product labeling are painted

Press fittings of Altstream TM, which you can buy from TD Stroy Service, will serve for installation of pipelines, their connection and installation of various plumbing equipment This mount is considered non-removable In other words, it can be called a one-time service Properly installed press fittings are absolutely reliable They are installed by using impact tools Thanks to their robust construction, they can be rolled up in concrete and used in screed Among the design features of the system, it is worth noting the housing It is made of high-quality brass, and after processing is covered with a layer of Nickel Therefore, it resists rust perfectly and has high strength

Independent replacement of pipes in the apartment

 The question of replacing communications in an apartment arises as an indispensable attribute when carrying out repairs or a high degree of deterioration of pipelines

   Pipelines laid during Soviet construction (and sometimes even now) are made mainly with metal pipes They are laid openly, have an unattractive appearance, are highly susceptible to destruction by corrosion, and significant deposits form on their inner surface, which prevent the normal movement of water and heat carrier

   Another option for replacing pipelines is the desire to change the type of material, the method of laying (open to closed) The cost of replacing pipelines together with the cost of purchasing new materials is sometimes a substantial amount Therefore, many apartment owners have a natural need to carry out this type of repair on their own, that is, with their own hands

   It is worth noting that not all types of pipelines can be installed independently An important aspect is the correct selection of the purpose of the new pipeline - cold or hot water supply or heating For the Assembly and installation of certain types of materials, you must have special equipment and at least initial installation skills, and sometimes professional ones

   Installation of copper pipelines requires a special burner and highly professional installation skills When working with polypropylene pipes, you will need a special welding machine (soldering iron), in addition, you need an initial level of installation skills

   Self-Assembly of any pipeline system implies the availability of the necessary tools for installation (adjustable, spanners and Bako keys, as well as screwdrivers, hacksaws, screwdrivers, USM ("grinder"), puncher and much more) You need to be able to properly mark up, because for each type of pipeline, this process has its own characteristics

   To carry out the work, it is necessary to carry out preparatory measures - to organize the disconnection of communications, as well as their release from water and heat carrier However, the same set of training will be required for the work of a hired team

   The simplest pipeline systems that allow for self-replacement of pipes are metal-plastic and polyethylene structures with threaded fittings No special skills are required to build them However, pipelines of this type can only be laid in an open way because of the need for access to fittings for maintenance

 Types of fittings used for connecting all-in-one structures

 If the main elements are all-in-one, they are also connected using the following fitting options:

 - compression or crimp;

- the connection of which is carried out by welding or by capillary method;

- press-fitting

 Welding for connecting brass fittings to a pipe is rarely used due to the fact that this requires special equipment, as well as the appropriate experience of the master A more common option for connecting such structures is capillary soldering, the essence of which is based on connecting the fitting to the threaded base of the pipe This type of connection provides greater tightness and is almost guaranteed to prevent leaks

 One of the most common ways to connect non-removable elements with fittings is the pressing method It does not require any equipment other than the usual key for fittings Using this method allows you to ensure the reliability and strength of the structure, and therefore this connection should be periodically inspected for various types of defects that can lead to leakage

 One of the newest and at the same time very popular is the press fitting It consists of several elements – a connecting ring, a plastic insert, etc.d, and is used for connecting all-in-one structures

 Installation of fittings of this type is carried out using specialized press tools They can be manually operated or electrically operated The only drawback of these types of elements is that they can only be used at a certain temperature This is explained by the fact that one of their main components are special inserts that begin to break down when the temperature is exceeded