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Fittings for metal pipes with threads. Fittings for metal pipes: types and distinctive features. Advantages and disadvantages

Steel fittings- the most important part in pipeline fittings. Without them, the process of laying and installing the pipeline is impossible.
Steel fittings are installed in those sections of the pipeline where it is necessary to make any branch from it, turn or transition from one pipe diameter to another. As a rule, steel fittings are installed on pipelines with a small diameter (up to DN-100), using a threaded connection or welding. Cast iron fittings are installed exclusively using a threaded connection.

High-quality steel fittings are always available at the warehouses of BK-Armatura LLC.

coupling steel according to GOST 8966-75 - these are steel threaded fittings.
This standard applies to straight steel couplings with and without zinc coating with cylindrical threads. Steel couplings are used for connecting water and gas pipes in heating systems, gas pipelines, cold and hot water supply and other systems operating in non-aggressive environments (water, steam, gas, etc.) at a working environment temperature not exceeding 175 degrees Celsius and pressure Ru- 1.6 MPa.

Lock-nut steel according to GOST 8968-75 - these are steel fittings.
GOST 8968-75 applies to zinc-coated and uncoated steel locknuts with cylindrical threads. Steel locknuts are used in heating systems, water supply, gas supply and other pipeline systems at a working environment temperature not exceeding 175 degrees Celsius and pressure Ru - 1.6 MPa. The steel locknut is made of a steel hexagon, inside of which a cylindrical thread is cut.

Sgony GOST 8969-75 - steel fittings (pipe blanks), intended for direct connection of pipes. This GOST applies to steel and galvanized pipe threads. Used in heating, gas and water supply systems. The temperature of the working environment is not higher than 175 degrees Celsius and the working pressure Ru is 1.6 MPa. They are a piece of pipe, at the ends with pipe threads of different lengths: short and long. Galvanized squeegees are used in places of high humidity.

Threads GOST 3262-75 – these are steel fittings (pipe blanks). This standard applies to galvanized and non-galvanized steel welded pipes with and without cylindrical threads. They are used in water supply and gas pipeline systems, as well as in heating systems. The advantages of threads are ease of installation and low cost of the product. Threads are a short piece of pipe, with pipe threads on one side. The other side is welded. Galvanized threads are used in places where increased corrosion resistance is required.



brass fittings in Moscow

Brass fittings represent an extensive group of threaded fittings with a wide range of applications: they can be used in a wide variety of utility systems, in particular in heating and water supply networks. These fittings are compatible with copper, steel and other metal pipes.

Brass fittings can be yellow, without a special coating, or they can be galvanized, with a white metallic color. In assortment our online store for plumbing fixtures You will find both the first and second types of brass fittings.

The use of brass fittings allows you to install water supply or heating networks of the most varied and complex configurations. The plugs, crosses, couplings, nipples, adapters, bends, connections, tees, angles, fittings and fittings presented in this section of our catalog are fittings produced by well-established manufacturers and with certificates of conformity. The use of these fittings allows you to create reliable tight connections pipes between each other and with various water-consuming devices.

Brass fittings are threaded, so two features that are characteristic of them should be noted. Firstly, the connections created on their basis are detachable, that is, the fitting can be reused after dismantling. Secondly, like all threaded connections, pipe connections with brass fittings must be sealed, for which it can be used

Steel pipe fittings are connecting elements that play a very important role. Translated from English, fitting means installation, assembly. Rolled steel pipes have been used for a very long time; they can be found in water and gas pipelines, heating and drainage networks.

The susceptibility of steel pipelines to corrosion has led to an increase in the popularity of plastic products, but, nevertheless, steel pipelines have not been abandoned. Their high strength and reliability allows the pipeline to withstand high pressure, low and high temperatures.

As for crimp structures, they do not have this drawback. The main disadvantage of crimp and press fittings is the not very high reliability of the connection. For these reasons, such parts often need to be tightened during operation.

The main area of ​​application is construction and repair work, where it is necessary to join pipe materials with an external volume of no higher than 6 cm.

Convenient and inexpensive crimping parts have almost no disadvantages and do not create additional problems during operation.

Cast iron fittings

Cast iron fittings for steel pipes are a type of connecting fittings that are used when laying pipelines of different diameters. Malleable cast iron used in production is an unconditional guarantee of practicality and an optimal balance between acceptable cost and quality. Cast iron products are equipped with internal and external threads, for these reasons they can be used in any installation conditions.

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An undeniable advantage in this situation is that these parts are easy to install and remove. All this work can be easily done with your own hands.

Another advantage of these products is their long service life. Using them you can be sure that they will withstand temperatures up to 175 degrees and pressure of 16 MPa.

All cast iron products are manufactured in accordance with GOST standards.

Extensive selection options, affordable prices and fast delivery make purchasing convenient and simple.

Galvanized connecting elements

Galvanized fittings for steel pipe products are joining elements for individual pipe products. They are the most popular. The thing is that galvanizing significantly increases the anti-corrosion capabilities of the mechanism, as a result it can last more than 50 years.

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Galvanized reinforcement options are used for various types of joints, so they are divided into:

  1. square;
  2. coupling;
  3. adapter;
  4. cross.

Like other analogues, galvanized products are connected using several methods. However, working with these parts has some peculiarities. For example, welding can damage galvanizing.

Of all the methods, the most preferred is the threaded connection. Galvanized threaded products make it possible to make a tight and reliable joint. If necessary, these parts can be reused.

Dimensions

The dimensions of the connecting elements for steel pipes play an important role. After all, they are used for highways with a large number of branches and for laying a straight pipeline.

With the correct selection of the dimensions of the connecting parts, you can reliably fasten pipelines and heating devices with different threads and made of different materials.

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The diameters of the produced fittings correspond to the diameter of the produced pipes, so their selection is not difficult. To make the right choice, you need to know exactly the dimensions of the pipe materials used for the job. The dimensions of the fastening fittings range from 16 to 110 mm.

Options with a small diameter (up to 63 mm) are used for networks supplying water, supplying heat with a pressure of up to 16 atmospheres. And large-volume elements can be placed in a system operating at a pressure of almost 10 atmospheres.

Fittings "GEBO"


for pipes are intended for joining without threads and welding in the process of laying and repairing various highways. They hold these elements together using O-rings and collet clamps.

Application:

  • Connection without threading and the need for welding.
  • Instantly eliminate leaks without welding or special tools.

Gebo products are particularly suitable for:

  • poorly accessible and corroded sections of the highway;
  • pipe materials of non-standard dimensions;
  • for pipe-rolling assortment made of non-weldable materials;

The main advantages of Gebo elements:

  • installation of detachable connections;
  • short installation time;
  • there is no need for cutting, soldering, or gluing pipes;
  • you can launch the network immediately after installation;

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Gebo products are representatives of the highest quality line, this is confirmed by a large number of technical approvals. The most important confirmation is permission for installation in the network transporting drinking water.

Fittings for steel pipes are not difficult to purchase. If you have additional questions about price and characteristics, you can clarify them with the manager. He will help you choose a product that fully meets the client’s wishes.

Seamless and electric-welded pipes made of galvanized and non-galvanized steel of various thicknesses and diameters, stainless steel pipes, steel, cast iron and brass fittings of various types (welded, threaded, collet) are distinguished by an affordable price and durability and satisfy any construction needs - from industrial to residential spheres. Transportation of coolant and heat supply distribution in residential buildings, municipal institutions, and office centers are traditionally carried out using metal pipelines. The flexibility of corrugated steel pipes and the tightness of welded fittings ensures the safety of communications.

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Features of using metal pipes in heating systems

Agree, there is nothing better when a comfortable microclimate is maintained in a house or apartment if the temperature outside is sub-zero. It all depends on the heating system. In particular, great attention should be paid to the autonomous heat source and the most important parts associated with it (heating boiler, radiators, pipes for transporting coolant). Also in this matter, shut-off and control valves for pipelines play an important role. But we will dwell in more detail on the pipes themselves.

So, the coolant is delivered to the radiators and circulates through the pipes. The most familiar option to many is a round metal pipe. It is durable and has a long service life. Galvanized pipes are less susceptible to rust, the inner walls are resistant to corrosion, they do not so often collect various impurities, causing the circulation pump to become clogged with dirt. Ordinary black steel pipes are very vulnerable to rust. But today it is not at all difficult to buy a galvanized, rust-resistant metal pipe. For large-scale work, it is convenient to immediately buy everything you need in bulk, having previously selected a reliable, honest supplier of high-quality parts. Without a doubt, the Santekhvoz company meets these requirements. We offer to buy in Moscow with delivery not only metal pipes for heating, but also steel and cast iron fittings.

Buy metal pipes for heating - Santekhvoz company

It is convenient to buy steel and metal pipes and fittings in bulk, so to speak, in one set. When you don’t have to worry that any part does not fit the thread or is completely incompatible with the pipe or radiator. Thus, the Santezvoz company offers to purchase in bulk all the necessary components strictly according to the specified characteristics; steel and cast iron fittings are certainly durable, capable of withstanding large pressure drops and high temperatures. There are no less reliable heating pipes available, which can be used in open spaces, are suitable for transporting coolants of different densities, and are used in both central heating systems and autonomous ones. Pipes and fittings for metal pipes are delivered throughout Russia. You can submit an application directly on the website by filling out the form in the “Contacts” section, or call us by phone (the number is listed in the same section).

The main purpose of fittings is to connect pipes into a single continuous system that supplies the working medium in the required direction. Fittings include adapters, elbows, tees, plugs and other products. For steel pipes, parts made of identical material are used. For example, connecting elements made of steel grades AISI 304, 316 or 12Х18Н10Т are installed on food-grade stainless steel pipelines.

Fittings for metal pipes not only connect sections of pipelines, but also change direction, divide the flow into several parts, help reduce or increase the volume of transported liquid, or stop its movement.

Metal fittings are made by stamping from rolled sheets or finished pipes with mandatory machining of the pipes on a lathe. Parts are often subjected to subsequent galvanizing to extend service life and enhance anti-corrosion resistance.

There are several types of products based on the type of connection:

  • Threaded steel fittings are attached to pipes using threads. This connection is removable, which increases its maintainability. The thread on the part can be cylindrical or conical (for imported products). The main application is water supply and consumer gas pipelines;
  • another collapsible connection - a flange element used for attaching shut-off valves, radiators and convectors, and measuring instruments to the main line;
  • One-piece crimp fitting is installed on high-pressure pipelines;
  • The steel weld fitting is tightly welded to the pipe, which complicates the repair of this section, but ensures a reliable and durable connection.

Commercial offer from Trubmarket

Our company offers interested organizations and individuals to buy a wide range of steel fittings at the best price in the region. We sell certified domestic and imported goods that meet established standards.

Our consultants will help you select parts according to specifications. Orders are shipped on the day payment is received, regardless of the calendar day or time of day. Delivery is carried out by transport companies. The type of transport is chosen by the customer.