When installing any structure, you often have to connect some elements. Sometimes it is simply impossible to do without it.
There will always be elements to connect, but how to connect them is a question that requires a very careful approach.
If the choice of nails, bolts, and screws does not create any problems, then with elements for connecting pipe-rolling materials everything is a little more complicated.
A connecting element for pipe materials such as a coupling is very popular. The choice of materials of this type is quite large, but the coupling connection with external thread deserves special attention.
The coupling connection is easy. In this case, two workpieces are simply screwed into the coupling. If this is the initial installation of a pipeline, then the work proceeds without any difficulties.
But, during the use of the network, it is necessary to partially or completely dismantle the structure. For such cases, a connecting element is provided, which is called -.
A little history
The biography of this mounting option has no beginning, but it is assumed that Americans were involved in its origin.
“American” is a coupling that has a union nut.
This coupling also has a stop collar and a nut with a corresponding part for it.
When working with this fastener, you do not need to turn anything other than the nut. You can disassemble the established connection as much as you like. With such actions, there is no need to disassemble all other connections. This means that the time and money spent on work can be significantly saved.
Design
Couplings combined with external threads occupy an undeniable leading position in terms of frequency of use, and they are simple and reliable.
In cross-section, the device looks like in the picture. This mechanism is metal part- bookmark.
Outer layer this mechanism made of polypropylene, it serves to cover the metal base. It forms a socket on the other side of the mechanism for soldering with other network elements.
Connection
It's pretty simple work. Its order is as follows:
- First, the workpieces are prepared, threads are cut into them for seven turns.
- A joint is selected where two fittings are threaded from the inside.
- A coupling with an external thread is placed on the thread of one workpiece, having previously applied sealing material to it.
- Fits on a fitting with a collar union nut, and is screwed onto the next workpiece with sealing material.
- The final stage is connecting the union nut to the thread of the corresponding fitting.
Now the joint is ready. All work with this mechanism was carried out using wrench, which is used to tighten the parts. The rest of the pipeline remains motionless.
Manufacturing materials
These connecting elements are made of the following materials:
- cast iron;
- stainless steel;
- steel.
The cost of the product depends on the material used. The operating characteristics of the mechanism also depend on it:
- the type of liquids that pass through the line;
- possible temperature standards;
- pressure indicators.
The range of options offered is so large that it makes it possible to choose them for any need without much difficulty.
Most often, such mechanisms are coated with nickel. It serves as protection from external influences and gives the product a presentable appearance.
Technical features
The quality of the materials from which the combined detachable coupling with external thread is made allows the main working parts to serve for a long time, subject to the conditions of use.
Manufacturers claim that the collapsible combined “American” will last ten years if the following conditions are met:
- in the line the fluid pressure should not be higher than 2.0 MPa;
- the temperature of the coolant should be no more than 80 degrees;
- the joint must be made by threading or polypropylene soldering;
- there must be no aggressive substances in the line.
Key for such a device
It would seem that such a device does not represent anything complicated.
But this mechanism has its own hidden secret that you should know.
The whole point is that the union nut is easy to operate with a simple open-end wrench.
And they install it with an internal key. It is a hexagon or cylinder that has recesses for hooks; it is a little more complicated, but more reliable.
Use in plumbing
The universal joint obtained using the “American” has become the reason for the great popularity of this mechanism.
In many situations it turns out to be simply irreplaceable, and often becomes an integral part of some types of equipment, for example:
- tap;
- measuring device;
- complex switching unit in a hot water supply system.
The combined “American” with external thread allows for a tight and durable joint.
Watch the video, which explains the features of using a combined detachable coupling with an American external thread:
For easy connection key elements of the water supply system (mixers, boilers, radiators and other connection points) greatest distribution received a threaded connection method.
In systems made of polypropylene pipes, a water consumer or another element of the system can be connected to the pipe, for example, by means of combined couplings with external thread. Such a coupling can have the following thread diameter: 1/2, 3/4 inch or 1 inch - and can be connected to PP-R pipes with a diameter of 16 to 32 mm. Other sizing options are also possible.
NPO "Stroypolymer" guarantees the proper operation of the elements of the water supply system for one year under proper operating conditions. The normal service life of the proposed PP-R elements reaches 50 years. All products have quality certificates.
To clarify the terms of purchase (prices, volumes, dimensions, weight of goods, etc.), you can call the multi-line phone number listed on the website.
IN Lately such an element as a coupling is of particular relevance among the majority modern people. This connecting element is considered almost irreplaceable for all kinds of installation work. The male thread coupling is designed for special applications where it is necessary to combine different types pipeline. Elements that have external threads are used in hot or cold water supply pipelines. They are most often used when it is necessary to embed:
- tap;
- communication hub;
- special measuring device.
Manufacturers guarantee a ten-year service life of the connection using an American HP coupling if the following conditions are met:
- the pressure of the transported liquid does not exceed 2 MPa;
- coolant temperature no more than 80 ºС;
- the joint on one side is made by soldering, on the other - by thread;
- the liquid in the line is chemically neutral.
The fittings presented in our catalog are no less relevant when you need to connect polypropylene or steel pipes. In the existing catalog you can find products in a full range of diameters of polypropylene or steel elements. If you are interested in products that have external threads and want to buy them in Moscow, then our specialists will help you with the selection and organization of prompt delivery.
Wide range of products
The American split coupling presented in the catalog is inexpensive. Because of this, if necessary, any consumer will be able to select products for a heating radiator. The presented American split coupling has a long service life and can be used in various fields. If you need to buy an American split coupling, then come to the right place, our website presents a large assortment of these fittings for different diameters pipes With this adapter you can easily connect both aluminum and . If you have any questions, call and our managers will provide all the information you need.
You can purchase products from this section of the TERMA-MSK online store catalog wholesale, retail, with delivery and selection convenient options payment. Our specialists will help you select components in accordance with the installation task.
