Steel pipe fittings are crucial connecting elements. The word "fitting" literally means "installation" or "assembly." Rolled steel pipes have been used for a long time and can be found in water, gas, heating, and drainage systems.
The susceptibility of steel pipelines to corrosion has led to the rise in popularity of plastic products, but steel pipelines remain popular. Their high strength and reliability allow them to withstand high pressures and both low and high temperatures.
Of course, The advantage of polypropylene systems in heating or water supply systemsThe advantage of this method is its ease of installation, but its air-tightness remains questionable. However, steel pipe fittings can completely solve the air-tightness problem; however, they must be selected and installed correctly.
As for the cost of steel pipelines, they're not much higher than their plastic counterparts. However, their service life isn't even comparable. Steel systems installed 50 years ago have been operating successfully to this day, but whether plastic can last that long remains to be seen.
When installing plastic pipelines, fasteners are used that cannot be removed during repairs, while in steel pipelines, any individual section can be easily disassembled, thanks to fittings.
Many rightly cite the labor-intensive installation as a significant drawback of steel pipelines. However, these difficulties are more than offset by the reliability and durability of the resulting structure.
The components used in steel network construction can be either detachable or permanent. Permanent options require welding, while detachable options require the use of threaded fasteners—fittings.
The mechanisms used can be of the following types:
- crosspiece;
- corner;
- coupling;
- tee;
- lock-nut;
- adapter;
- plug;
- union.
Steel tubular products are joined using pre-fabricated threads. If these are not available, they can be cut using special tools. The materials used to manufacture these products include:
- cast iron;
- black metal;
- brass;
- copper;
- stainless steel.
According to the method of connection with the metal pipe, they are:
- threaded;
- crimping;
- flanged;
- welded.
Welded parts
Weldable steel pipe fittings are considered the strongest of similar components. Parts intended for welding are characterized by a smooth end.
Welded fasteners are a permanent system, meaning they cannot be disassembled for reuse. The welds produced on the pipe are not very visible.
The selection system for such components is based not only on the similarity in volume between the fastening element and the pipe itself, but also on similar properties. Pressure tolerance, as stipulated by GOST, must be a mandatory selection criterion, and the fittings must meet this requirement.
Weldable versions are used in systems and are placed inside the structure. Replacement of such parts is not planned for a very long period.
Threaded options
Threaded fittings For metal pipes, these are considered the most popular and versatile fittings for joining rolled pipe materials. The most popular of these fittings is the "American" variety.
This is a coupling with a union nut. The connection is made by simply turning the nut. The coupling can be removed any number of times, without disassembling any other components. This ensures minimal installation time, low cost, and excellent repairability.
Threaded mechanisms are a practical option for those looking to install highly reliable components at an affordable price.
Threaded structures allow connecting steel pipes of different diameters.
Distinctive characteristics and advantages of these parts:
- low susceptibility to corrosion processes;
- high resistance to aggressive environments;
- long service life;
- reliability of the joint;
- a convenient way to connect large diameter pipes;
- ease of use and possibility of dismantling.
Compression fittings
Compression fittings For steel pipes, these are universal fittings. They can be used multiple times and allow the pipeline to be bent in any direction.
These fittings allow steel pipes to be joined without welding or threading, ensuring a high level of sealing.
They are made from durable and wear-resistant materials, and offer a wide range of design configurations.
These mechanisms are equipped with one or two rings. Their operating principle is based on the use of a polymer seal. Under external pressure, this material compresses, tightly gripping the outer portion of the pipe being inserted into it. The result is a highly sealed connection.
Compression fittings for steel pipes require no special tools. Installation is quick and easy.
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However, these mechanisms have a significant drawback. They have low resistance to mechanical impact. This design can leak when subjected to impacts and vibrations.
IMPORTANT! Before reusing compression fittings without losing their seal and strength, we recommend replacing the O-ring and rubber gasket.
Press fittings
Press fitting For steel pipes, this is a type of compression fitting. They create a completely permanent connection. This property is considered a disadvantage, as they cannot be reused. In the event of a leak, such fittings must be replaced.
As for compression fittings, they don't have this drawback. The main disadvantage of compression and press fittings is their lack of connection reliability. For this reason, such components often require tightening 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 more than 6 cm.
Convenient and inexpensive crimping components have almost no drawbacks and do not create additional problems during operation.
Cast iron fittings
Cast iron fittings for steel pipes are a type of connecting hardware used for laying pipelines of various diameters. The ductile iron used in production guarantees practicality and an optimal balance between cost and quality. Cast iron products are equipped with internal and external threads, making them suitable for use in any installation environment.
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The undeniable advantage in this situation is that these parts are easy to install and remove. All this work can be easily done by yourself.
Another advantage of these products is their long service life. Using them, you can be confident they will withstand temperatures up to 175 degrees Celsius and pressures of 16 MPa.
All cast iron products are manufactured in accordance with GOST standards.
A wide selection, affordable prices, and fast delivery make purchasing convenient and easy.
Galvanized connecting elements
Galvanized steel pipe fittings are connecting elements for individual pipe products. They are the most popular. Galvanization significantly improves the mechanism's corrosion resistance, allowing it to last for over 50 years.
And in this one The article describes in detail the process of welding galvanized pipelines.
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Galvanized reinforcement options are used for various types of joints, therefore they are divided into:
- square;
- coupling;
- adapter;
- crosspiece.
Like other similar products, galvanized parts are joined using several methods. However, working with these parts has some special considerations. For example, welding can damage the galvanized coating.
Of all the methods, threaded connections are the most preferred. Galvanized threaded parts provide a tight and reliable connection. These parts can be reused if necessary.
Dimensions
The dimensions of steel pipe fittings are important, as they are used for main lines with numerous branches and for straight pipelines.
By selecting the correct sizes of connecting parts, it is possible to securely fasten pipelines and heating devices with different threads and made of different materials.
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The diameters of the fittings we produce correspond to the diameters of the pipes we produce, making their selection easy. To make the right choice, it's important to know the exact dimensions of the pipe materials being used. The sizes of the fastening fittings range from 16 to 110 mm.
Small-diameter versions (up to 63 mm) are used for water and heat supply networks with pressures up to 16 atmospheres. Larger-volume elements can be installed in systems operating at pressures of almost 10 atmospheres.
GEBO fittings
Gebo fittings Pipe fittings are designed for threadless connections and welding during installation and repair of various pipelines. They secure these components together using sealing rings and collet clamps.
Application:
- Connection without threading and the need for welding.
- Instant leak repair without welding or special tools.
Gebo products are especially suitable for:
- poorly accessible and corroded sections of the highway;
- non-standard sized rolled pipe materials;
- for rolled pipe products 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 of rolled pipe products;
- The network can be launched immediately after installation;
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Gebo products represent the highest quality, as evidenced by a large number of technical approvals. The most important approval is approval for installation in drinking water networks.
Steel pipe fittings are easy to purchase. If you have any questions about pricing and specifications, please contact our sales team. They will help you choose the product that best meets your needs.
