What is the basis for the choice of polypropylene pipes
The choice of plastic pipes in all their diversity as the main structural material for domestic pipelines for various purposes becomes almost the norm. Metal steel and even copper pipes are gradually losing the markets of such equipment in the economy class category with polypropylene and polyethylene( PE80) products, and the reasons for this are quite obvious.
With any choice of building materials, there are always three main questions: how much it will cost, how fast it will be installed and how long it will last. The best polypropylene pipes for heating and running water harmoniously fit into all the criteria. Judge for yourselves:
- polypropylene pipes of any type are chemically inert and are capable of taking a low-quality coolant( if only the boiler and the pumping equipment can support it);
- precipitation of corrosion products of the system and impurities on the walls of water conduits is much slower than in metal networks;
- pipe segments of category PN20 and above are able to maintain the working pressure of central heating systems, and for autonomous heating conditions they have ideal mechanical properties;
- environmental cleanliness of the material under normal operating conditions;
- heat resistance of internal coatings( up to 120 degrees) and low propensity to ignite external;
- relatively low price: the running meter of polypropylene pipe of category STR032P20X 32x5,4 S2,5( PN 20), suitable for heating and hot water supply, varies about 90 rubles;
- simplicity and cost-effectiveness of installation work in the wiring of the most complex design schemes;
- finally, aesthetics: polypropylene heating pipes of any size harmoniously fit into the interior without additional decoration.
Types of polypropylene products: how not to be mistaken in the choice of
Before choosing polypropylene pipes for your heating system, it makes sense to at least briefly familiarize yourself with the range and labeling of this product. Regulates the requirements for such products GOST R 52134-2003, where you can find out everything about pressure pipelines from thermoplastics and fittings( connecting parts) to them.
- types of plastic pipes of this type: PP-H, PP-B and PP-R, in Russian version are marked as PP type 1-3;
- scope: cold and hot water supply, heating;
- the assortment on the sizes is extensive: polypropylene pipes can have an external diameter from 10 to 450 mm at a nominal wall thickness from 1,8 to 40 mm;
- thermal resistance, for example, the brand PP-H 100, it is 110 degrees, and this, you will agree, is quite good.
Many sellers and manufacturers use their product marking, but if you see on the price tag 32x5,4 S 2,5 PN20, understand that this is a polypropylene pipe with an outside dimension of 32, a wall of 5.4 and a nominal cross section of 2.5 millimeters,for wiring internal heating networks. You meet PN10 with a wall 2,0 - take only for a cold water pipe in the country( almost watering hose).
Options and installation of PP pipeline
- Internal reinforcement with aluminum. Stiffness of the structure, mechanical strength and thermal conductivity are increasing - the advantages are obvious. Such a sandwich is an assembly and will last longer, and it will be better to heat. Structurally - just one tube in the other, padded with aluminum foil( solid, corrugated or perforated).The latter performance is the least successful, since it allows the penetration of oxygen into the joints.
- Fiberglass sealing layer. Light variation of the metal structure. By extrusion, the outer diameter is insulated by a fibrous fiberglass web.
- Composite materials as a layer. Another way to reduce weight and improve its performance.
It should be noted that the additional heat insulation made by the manufacturers and the almost three-layer heat transfer surface make the polypropylene heating pipes absolutely safe, which must be taken into account when choosing an indoor distribution.
The laying and installation of polypropylene pipes, as we have said, is carried out quickly enough with the necessary tools and certain skills. The necessary assortment of connections can be independently selected according to the calculation scheme, but it makes sense to entrust all these problems to professionals. In any case, the fineness of the installation of PP-pipes is suggested to be assessed using video instructions.
