One of the main elements of the heating system are steel pipes, which now appeared on the market of building materials a lot of contenders.However, the less popular steel tubes did not.For a reliable network connection portions of the heating industry produces fittings for steel tubes which are threaded.Therefore, installation of heating system can be made with your own hands, using a bill of divorcement, and wrenches.This is the minimum of tools that need to have in your arsenal master plumber.During installation of large diameter pipes, use flanged fittings or resorting to a method of butt weld connections.To perform high-quality weld should be already be qualified and high-tech equipment.
Choice pipes for heating ↑
selection process pipes
- hidden or external method of laying the heating pipes;
- need for insulation of pipes, if any part of the network goes beyond the heated space;
- coolant pressure level and its average temperature value of the heating system;
- configuration of the heating system (straight or complex);
- implementation of its own repair system is maintained.
Methods of production of steel pipes ↑
1. method of manufacturing seamless pipes.It is quite expensive, but very reliable option.
2. Welded method allows you to receive and spirally welded stainless steel pipes.Their difference, as seen from the names, is to select the type of weld.Also available in hot-tubes, in the production process which uses hot deformatsiya.Pomimo that there are cold-pipe, with the release of which resorted to the technology of cold deformation.
Gauge steel pipes ↑
List of pipe produced by the enterprise which are in conformity with state standards, it is the assortment.On how he is extensive, independent production capacity of the Pipe Plant.
also gauge steel tubing and is indicated in the stores, while it may be in the form of the table, which lists the available types of pipe and their basic parameters.
When you create a mix of steel pipes take into account a number of factors:
- steel grade, goes to the production of pipes;
- technology of their production;
- wall thickness;
- availability of additional processing;
- purpose pipes.
All pipes are included in the product mix of the manufacturer must comply with the standard dimensions and other technical characteristics defined by a number of guests: GOST 10704-91, GOST 28548-90, GOST 20295-85, GOST 8639-82, GOST 8645-68 GOST 8732-78, GOST 8734-75, GOST 3262-75.
Installation of steel pipes and bending ↑
When choosing a steel pipe, as well as prior to installation, it is necessary to consider the good product to ensure that no factory defects or any kind of mechanical damage made during the delivery of the material to the object.
If galvanized pipes are not purchased, then spend their coloring.As the use of paint often asphalt varnish.Galvanized factory pipes are not subjected to additional processing.
If you choose to open laying of steel pipes, then attaching them to the walls using clamps.Thus there are recommendations on the distances between the attachment points, which depend on the inner diameter of the metal pipe:
1. If the diameter is 15-20 mm, the fastening spaced not more than 2.5 m.
2. When the pipe diameter is 25or more millimeters is maintained between the supports of about three meters.
3. If the diameter is 40 mm, the distance between the clamps is 4 meters.
for bending steel pipes are commonly used manual hydraulic bender.This compact and convenient device can be easily transported to the object.When using economical power consumption.The difficulty in performing cutting and bending the main drawback of steel products.
In the absence of this instrument are purchased ready-made steel fittings desired shape, which provide direct connection sites in the pipeline bends.
methods of installation of connections ↑
- autogenous welding is used for connecting pipes with smooth ends;
- at screwing up the connection strengthens the gasket, thereby ensuring its impermeability;
- flanges having a bolt with which the flanges are attached to the pipe ends.
threaded fittings for steel tubes
sale is a complete range of threaded fittings used to connect steel pipes in a variety of configurations.It includes:
- coupling transition;
- barrels (coupling with external thread);
- barrels transition;
- sleeves (elongated barrels);
- connectors "American";
- squares of all kinds;
- all sorts of tees;
- Fittings forward and backward;
- locknuts and plugs.
Advantages and disadvantages of steel pipes ↑
For installation of heating systems currently use several types of tubes: copper, plastic, steel.The best option in terms of price and quality are considered steel pipes for heating.The main disadvantage of steel pipes is their susceptibility to corrosion.To level of minus galvanized pipe.This method is most suitable for the installation of domestic heating systems.However, it must be remembered that the galvanized pipes can not be used antifreeze.
According to the degree of mechanical strength and low coefficient of expansion at a possible change in temperature of the steel pipes is practically no rivals in the field of heating and steam heating.In copper products present coefficient value twice, while the plastic - 15 times.Therefore, by performing the installation of the heating system of PVC pipes should strictly monitor the temperature of the coolant.If you exceed the maximum temperature of the deformation of the plastic pipes.
The disadvantages of steel pipes carry their weight and awkward size, complicates the process of installation of the heating system.It also requires search specialist welding, with high qualifications.Otherwise, the joints will seep water through the invisible microcracks.For the detection of microcracks at the welders have their own methods, sometimes very original.
Video: experts on steel pipes ↑
roller hear the views of experts on the operational properties of steel pipes, steel pipes on the benefits and rules of work with steel pipes.
steel pipes are known for a long service life, which can be up to forty years.Although plants guarantee quality work tubes for ten years.Previously used in our country, only steel pipes which have still not been replaced.Meanwhile, a high degree of wear of pipelines leading to constant gusts and endless repairs.When replacing pipes in the apartment is recommended to use steel pipes, as the whole central heating system of an apartment building is made of them.When installing an autonomous heating system in a country house owner can choose the type of pipe at its discretion.