Detachable connections in plumbing. American, what is it and how to use it. What is an American connection in plumbing Santeh American

When carrying out any plumbing work, we are often faced with the need to connect various pipelines to each other. To perform such operations, many connecting elements have been invented, the most famous of which is the drive. However, this type of connection is far from ideal, and working with it is very laborious. It is much more convenient and faster to work with such a type of connection as an American, because it provides for almost everything to ensure the reliability and tightness of products. Therefore, let's talk about an American tap: what it is, what parts it consists of, where it is used, how it is used correctly.

Let's find out what an American in plumbing is, and on what principle it works.

An American is a connecting element designed for quick and convenient joining of pipelines from various materials with an internal or external thread. The product is structurally composed of the following components:

• quick-release hex nut with thread;
• 2 fittings, also threaded;
• rubber, polyurethane or paronite gasket (in some models, in particular, in conical ones, it may not be).

In fact, this is a coupling that has a shoulder and a union nut that abuts against this shoulder. Coupling connection of pipes American allows you to connect two pipe sections by turning just one nut. Similarly, a connection can be disassembled.

Connectors are available in stainless steel, brass alloys, cast iron, combinations of stainless steel and polypropylene. Products are able to withstand temperatures of the working environment up to +120 degrees. The allowable pressure is usually indicated on the body of the product.

The outer surface of the American has a decorative nickel coating that protects the product from corrosion and mechanical damage, and also carries an aesthetic appeal. If you use too coarse tools to work with an American, then scratches may appear on the surface of the product.

Advantages

• The installation of the connection is very fast. To do this, simply tighten the union nut;
• A detachable connection with an American union nut makes it possible to dismantle it and reuse it for other sections of pipelines. In this case, it is only necessary to replace the gasket, if any;
• During installation, it is not necessary to rotate the connected pipes;
• High quality connection is provided;
• In the event of a clogged pipeline with an American connecting nut, it can be disassembled and the blockage can be eliminated in a very short time.

Application of the American

Detachable connection American is used for many types of installation work. With its help, heating systems, water supply pipelines, flow systems are mounted. The connection is actively used to connect pipes through which non-aggressive liquid substances are transported. Plumbing "American" is installed on steel, and. Recently, combination fittings with union nuts have become very popular, for the manufacture of which a combination of metal and polypropylene is used.

Speaking about the American connection - what it is, it should be noted that this type of connection is not limited to a threaded coupling. The quick-release nut may also have various faucets or air vents. And what is an American crane - what is it and where is it used? It can be any valve, for example, a ball valve. On one side it has a thread for joining with the pipeline, and on the other side there is a union nut. Such a crane can be easily embedded, and just as easily dismantled from the system.

In practice, we constantly deal with mixers that use the American principle. are connected into a single structure precisely with the help of union nuts.

What types are

There are many modifications of the product, differing in the material of manufacture, size, type of thread, type of fastening. For different options for pipelines, a specific type of American is selected.

An American type quick coupling uses 2 types of fasteners:

1. cone mount. The joints of the threaded fittings are made in the form of a cone, so their maximum tightness is ensured even in the absence of a gasket. Such joints are resistant to temperature fluctuations. They are able to provide tightness even in cases where there are small deviations of the axes of the connected pipes (no more than 5 degrees). If it is necessary to install a thermostat for a radiator, then it is advisable to give preference to the conical version. The absence of gaskets allows the product to withstand significant temperature spikes without the threat of leaks.

Tip: Despite the fact that the gasket is not used for the conical connection, it is recommended to wrap the conical surface with several layers of FUM tape. This guarantees the tightness of the joint.

2. Cylindrical (flat) mount. This is a classic American version used for most pipelines. The sealing of the joint is provided by the gasket and screed of the union nut with the pipe.

Note: Some plumbing fixtures use flat washers. Such connections are less reliable, therefore, they may leak. It is not recommended to hide such places in the walls.

An American pipe threaded connection can be of two types:

1. Direct. Used for joining straight sections of pipes.
2. Angular. When 2 pipelines converging at right angles are joined, a corner connector is used. It allows you to connect perpendicular pipes.

The correct installation of the American

American plumbing is mounted using adjustable, open-end and universal wrenches. Also, sometimes you may need a special round key, with which American women are twisted from the inside. The use of gas wrenches is not allowed. Excessive force applied to the wrench handles may deform the union nut.

About that, you can learn from a separate article on our website.

When carrying out installation work, it will help you choose the right dimensions of the pipeline.

Other types of connection of plastic and metal pipes.

Consider how the American is installed on the pipe.

An American with an internal thread is installed on two sections of the existing pipeline. If there is no thread on the pipe, then it is cut by means of a die. A sealant is wound on the thread of one section. It can be FUM tape, flax fibers or other materials. After that, one part of the American is wound onto the pipe using a key. Then a sealant is applied to the second threaded section, after which the second American fitting with a nut is screwed onto it. After that, the two sections of the pipeline will be connected to each other by tightening the union nut of the fitting.

Tip: If tow or linen is used as a sealant, then a special sealant paste is applied over the fibers. In extreme cases, you can use engine oil.

The installation of an American with an external thread is carried out in almost the same way. The difference is that the sealant is screwed onto the thread of the American woman herself.

As you can see, the use of American type connecting elements can significantly speed up and simplify the process of installation and possible dismantling of pipelines and other plumbing fixtures.

In plumbing work, it is often necessary to join various pipes together. To accomplish this, many fittings have been invented, the most famous of which is the squeegee. But this connecting element has significant drawbacks and high labor intensity in the performance of work. The “American” will be a more convenient and faster connection element, since its qualities will fully ensure a reliable tight connection.

What is an "American" in plumbing: design and characteristics

"American" in plumbing, the correct name of which is a union nut, is a connection element for various pipelines with internal and external threads. With the help of such an element, pipe joining is quick and convenient. Structurally, the "American" has the following elements:

Quick release hex nut with thread;

Two fittings, also threaded;

Paronite, rubber or polyurethane gasket (some models, such as cone, are not equipped with it).

To put it simply, the “American” is a coupling with a collar and a union nut that abuts against the collar. Thus, the plumbing "American" provides a coupling connection of pipes by rotating one nut. In a similar way, the connection is disassembled.

"American" in plumbing is designed for operating temperatures up to +120 degrees Celsius, and the maximum pressure is usually indicated on the body.

The surface of the "American" is covered with nickel, which prevents corrosion and damage, and also improves the appearance of the product. If you work with this fitting carelessly and with a rough tool, then its surface may become scratched.

Why do we need an "American" in plumbing: the main areas of application

Since the "American" is a fairly versatile fitting that has a number of undeniable advantages, its use in plumbing is not by chance the most widespread in plumbing installation work. The versatility of the "American" is manifested in its unequal modifications for different cases, and in the fact that it is used as part of some complex plumbing devices: taps, switching units, measuring instruments, etc.

In household plumbing, "American" is used on water meters, which are found in almost every apartment. Thanks to this device, when replacing or checking the meter, there are no problems with pipes - only union nuts are unscrewed.

"American" is perfect for working with batteries, valves and all kinds of filters. The use of this fitting in plumbing will shorten the duration of the repair, which is important for both craftsmen and residents.

Since the "American" allows you to create connections that are distinguished by excellent sealing, it is used in high pressure and temperature pipelines. But this connection element was most widely used during the installation of plastic, polypropylene and metal-plastic pipes. At the same time, any type of pipe can be connected: plastic and plastic, plastic and metal, metal and metal - there is a fitting for each pair. Most of all in the "American" plumbers appreciate the ability to connect metal-plastic pipes without any preparation: when the pipe is inserted into the union nut and tightened, the counterpart is compressed by a conical ring.

For the installation of the "American" use open-end and box wrenches. Since the surface of this fitting is covered with nickel, it is better not to use pipe wrenches or use a protective wooden (or plastic) gasket to protect this layer from scratches.

"American": the benefits of the connection

Compactness, which the clutch with a clutch cannot boast of.

Versatility. Using different types, it is possible to mount connections with internal and external threads, as well as elbow and straight connections for pipes of different diameters.

Installation speed. In fact, the connection is made by tightening the nut.

Possibility of reuse. "American" in plumbing can be dismantled and re-installed on another section of the pipeline. In this case, only the gasket changes (if any).

Ease of installation in hard-to-reach places.

High degree of reliability and sealing.

The ability to quickly eliminate the blockage in the pipe.

When using a conical connection using an "American" on a pair of metal pipes, the use of a gasket is not required. In this way, the service life of the pipes is increased.

What are the types of "American women" (plumbing)

"Americans" in plumbing are represented on the market by a fairly extensive range. They differ from each other in material, size, type of thread and fastening. For each type of pipeline, its own specific "American" is suitable.

Types of fasteners connection "American"

Tapered

The conical connection of the fittings provides maximum tightness without the need for a gasket. Also, such joints are immune to temperature fluctuations in the pipe. Another plus of such a connection is the preservation of tightness when the axes of the pipes deviate, if the angle does not exceed 5 degrees. The conical connection is best suited for installing a thermostat on a heating radiator. Since the taper joint does not contain a gasket, the regulator will be more resistant to leakage during temperature changes.

Cylindrical (flat)

This is the most common type of "American" in plumbing. This type is used in most pipelines. In the specified connection, the tightness is ensured by the union nut that creates the screed and the gasket.

Sometimes flat washers are found on some plumbing fixtures. In this case, the connection will be less reliable, there is a possibility of its depressurization. Therefore, it is better to mount the connection with flat washers in an accessible place, not to remove it into the walls.

There are also two types of threaded connection "American"

direct. Suitable for mounting straight pipes

Angular. It is used when joining two pipes at a right angle. Connects perpendicular pipes.

Depending on the size there are "American" 1 inch, ½ inch and ¾ inch.

Features of an American crane

Ball valve with proper workmanship is the most popular and best type of valves. There are many such taps on the sanitary ware market: special taps, with threads inside and outside both on one and both sides, decorative taps, an American ball valve, etc.

Despite the fact that the “American” faucet is not uncommon, it does not find wide application in plumbing work. This comes from ignorance of all the advantages of this type of faucet, the main of which is the ability to install plumbing without the use of a plumbing fixture, which includes a long thread, a coupling, a lock nut and a reciprocal thread. Thus, using the “American” crane, we, only by rotating the wrench, get the docking of two self-centering parts. Everything is simple.

Also, the “American” ball valve is used when installing heating radiators. The radiator, docked on both sides through an “American” crane, can be easily removed. It is also very easy to manually adjust the flow of coolant on it, and therefore regulate the heating of the radiator itself.

Attention deserves the corner crane-"American". It has been on sale more and more lately. Such a device easily replaces in some cases an excessive number of connections.

The “American” crane, like other cranes, has two types of handles - a lever and a butterfly. The butterfly is installed on small cross-section cranes, where it does not require much effort to turn. The lever, on the contrary, is mounted on a crane with a large section, where it is necessary to apply more force to turn.

What materials is the "American" made of?

Americans are made from the following materials:

• Brass ("American" from this material is chosen by specialists, since brass keeps the temperature of the coolant up to 120 degrees; in brass "American" some parts can be made of nickel or chromium);

  Stainless steel grades ISI304, AISI316, AISI321 (marking contains information about the size in inches, steel grade and conditional pressure);

  Combined, using propylene parts.

Also in plumbing there are "American women", differing in diameter and performance in general. They are used in systems with hot and cold water supply. Corner "American" in plumbing is necessary for the installation of various elements in hard-to-reach places.

Of the above materials, "American" stainless steel has the highest strength. However, most plumbers choose American chrome, as this material provides more practicality and quality. Also, elements made of this metal do not require gaskets to ensure tightness.

How is the "American" installed

In plumbing, the “American” connection (threaded) is mounted extremely simply. "American" will allow you to install or replace a plumbing element, even for a novice plumber or a simple layman.

The most suitable place for pipe installation is one where there is access for any person carrying out this work. In this case, the direction of the coolant does not matter.

Installation of "American" (plumbing) in the highway will not cause much trouble. Imagine that you need to join steel pipes.

The connection using the "American" takes place in the following order.

It is necessary to prepare the ends of the pipes - cut at least 7 turns of thread.

Select connection with fittings with female thread.

Screw the fitting with an external thread onto one of the pipes, the threads of which are lined with flax, tow or energy flex.

Put the union nut on the collared fitting, then screw it onto another pipe with applied winding.

Connect the union nut to the thread of the mating fitting.

After these steps, the structure will be assembled. Compared with the coupling connection, the installation of the "American" in plumbing consisted only in twisting the parts. The rest of the highway remained motionless.

An "American" with an external thread is mounted according to the same algorithm, with the exception that the winding is applied to the "American" thread.

What is the key for the "American"

You can mount the "American" in plumbing without losing quality and convenience with different tools. But it cannot be said that there are no restrictions in their choice. The most suitable and often used for mounting the "American" is an adjustable wrench.

For the installation of this fitting in plumbing, the use of gas wrenches should be avoided in every possible way.

Recently, a universal tool has appeared that is most suitable for installing pipes in plumbing, including for the "American". This wrench is used for a wide variety of jobs, which clearly proves its convenience and practicality.

The most common sizes of "American" in plumbing are ¾ inch and ½ inch. This generally does not mean that you will not need other types of this fitting. In this case, you must purchase a wrench of a suitable size or use an adjustable wrench. The main thing is not to use a gas key under any circumstances.

If you know how to work with metal and have the necessary tools, then you yourself can make a cone wrench of the desired size. The taper is needed to get into the recesses.

The shape of the key will be L-shaped, the handle is about 150 mm long. The key sizes for the "American" in plumbing ½ inch will be 12x12 mm and 10x10 mm. As a rule, such keys are made from profile fittings.

A good alternative when working with a plumber with an "American" ½ inch will be pliers, which, as a rule, everyone has. They will perfectly replace a set of keys.

"American" in plumbing: price and where to buy

The price of "American women" is not exorbitant, so everyone can afford to purchase them for their plumbing needs. The use of these fittings in water supply systems of both residential and industrial buildings also indicates their availability.

The company "SantekhStandart" has been successfully operating in the plumbing market in Russia since 2004. The profile of work is large-scale wholesale deliveries of engineering systems for heating and water supply under our own brands AQUAPIPE, AQUALINK, AQUALINE.

The company's products are manufactured using high-tech equipment and meet high international quality standards. The production has a system of input control of raw materials and components, as well as a quality control system at all production stages. Thus, the product fully complies with the declared characteristics.

The company "SantekhStandart" presented in its catalog "American" and "American" taps for the following brands.

AQUAPIPE. Propylene fittings from this manufacturer are manufactured using modern production equipment from Borealis (Germany) raw materials, which guarantees their highest quality. Unlike other well-known brands, AQUAPIPE has a wide range of "American" (sanitary ware) made of polypropylene, as well as other polypropylene products, the range of which is regularly updated with new models.

AQUALINK. Threaded fittings of this manufacturer are represented by a large number of models of different types and sizes. The body of these fittings is made of brass brand CW617N, which is a complete analogue of domestic brass LS59 GOST 15527-2004. In the manufacture of the case, the method of hot pressing is used, which reduces the internal stress of the metal, thereby significantly increasing the strength and quality of the product.

LEXLINE. Under this brand, brass threaded fittings and pipe fittings for plumbing of the highest quality are produced. Production is located in Ukraine. The variety of these products is also great: fittings for gas and water pipes (including with a seal), suitable for plumbing, heating and gas pipeline systems in which there is a non-aggressive medium - water, steam, air, combustible gas. The connecting parts are made of brass brand LS-59-1 GOST 17711.

All questions regarding the connection using the "American", you will be answered by phone:

In plumbing work, the reliability of connections is of paramount importance. To ensure the tightness of the docking points, various fittings, nuts, clamps, gaskets and a lot of auxiliary elements are used. But, as practice shows, the simplest designs provide the best effect, to which the "American" plumbing belongs, regardless of the variety. This is a special nut that works with additional components and is designed to connect two pipes. By the way, the mount itself is called "American".

Structure and sizes

By design, an American can be attributed to the group of couplings with a union nut. The element can provide direct and angular connection, which opens up wide possibilities for mounting operations.

The connection kit includes the following components:

• union nut (coupling directly);
• nipple;
• clamping fitting;
• pad.

When choosing, it is important to determine the parameters that the "American" has. Plumbing, the dimensions of which allow the use of conventional fittings, can also be serviced with a union nut. In particular, the average corridor in length is 36-48 mm, and the diameter varies in the average range from 22 to 57 mm.

Features of the "American"

The main advantage over conventional elements that provide plumbing connections is the ability to dismantle the pipeline without the need to rotate the pipes. During operations at the junction of the pipe and the coupling, rotation of one nut is sufficient. During the manipulation, the pipe remains motionless. This is a tangible advantage, since intervention in the design of the pipeline can lead to disastrous consequences, and in some cases it is completely impossible.

Another advantage is tightness. Despite the elementary principle of fastening, American plumbing minimizes the risk of leakage. However, this is achieved through the use of special gaskets.

Manufacturing materials

Basically, for "American" stainless steel, brass with inclusions of nickel and chromium, as well as cast iron and various combinations of polypropylene elements and metal are used. An example of the use of synthetic material is demonstrated by the "American" plumbing, whose photo is presented below.

Although steel elements are considered the most durable, in terms of practicality and performance, experienced plumbers prefer chrome. By the way, such models are used even without rubber gaskets. Regarding compatibility with the material from which the pipes are made, it is worth noting the versatility of the coupling. This is another advantage that distinguishes "American" plumbing. Polypropylene or metal - the connection provides the same tightness. In addition, it was the materials that contributed to the possibility of using this connection in extreme conditions - even when transporting structures, similar installation schemes for docking points are allowed.

Installation

With the help of "American" threaded connections are created that can be disassembled. The design also includes a seal. Since there is the possibility of parsing, the repeated use of the element is not excluded.

"American" with an internal thread is used for joining pipes with the same diameter. With the help of a die, 7 threaded turns are formed at their ends. Before winding the element on one of the ends, a sealant should be placed in it - you can use energy flex, tow, linen, as well as polyethylene tape. The other end is also sealed, the field of which the second side of the coupling is screwed into it.

On the pipeline, plumbing "American" can be installed in any position - the main thing is that access is provided for inspecting the docking area. The direction of movement of the water carrier does not matter either.

Keys for Americans

For installation or disassembly of the "American" connection in the pipeline, different tools are used, but there are limitations. Typically, the installation of the coupling is carried out using adjustable or open-end wrenches. It is also practiced to work with universal keys, which are designed to serve "American women". Gas models cannot be used for such work.

Today, "American" sizes 12 and 34 are common, which have several internal protrusions - usually two, but there are also hexagons. The key for working with such plumbing can be done with your own hands. This will require a piece of reinforcement with a profile corresponding to the parameters that a particular "American" has. Metal plumbing, as a rule, is easily manipulated by heavy metal fixtures, but in the case of plastic, such experiments are undesirable.

Through thermal action and subsequent deformation, the workpiece can be given a conical shape. This is required so that the parameters of the protrusions do not differ much. The finished key can also be used in working with hexagons. If there is no suitable key and there is no possibility of making the tool yourself, then when working with metal versions, you can also use ordinary pliers.

Crane American

The concept of "American plumbing" is not limited to just one coupling. No less common is a faucet with this type of connection. A classic example is a ball valve, which, however, is not as in demand on the market as a regular plumbing fixture and other analogues. However, it also has the advantages of a long thread, a special sleeve design, a counter nut and a mating thread. As a result, the master, by means of simple operations with a key, tightens two self-centering elements - a crane and the "American" itself. Again, the reliability of the docking place is ensured by the simple design that the "American" has. At the same time, plumbing can be dismantled at any time without correcting the pipeline.

It is also recommended to use an "American" tap when installing heating radiators. On both sides, the connected unit can be easily removed and returned to its place, but these are not all the advantages of the connection. The user gets the opportunity to manually adjust the water supply, and this also allows you to adjust the temperature regime of the heating system already during operation.

No. In the jargon of plumbers, this word means a special way of connecting pipes using a fitting. The latter is a union nut, which actually is the same "American". Well, let's look at the features of this mechanism.

Characteristic

Quick-connect plumbing "American" can be produced with a conical or flat connection. Often this mechanism includes several parts:

• Two fittings.
• Cap nut.
• Rubber gasket.

At the same time, the tightness between these devices is ensured by the conical shape of the edges of the part. In plumbing "American" with a flat connection, tightness is achieved through the use of a gasket. The most commonly used material here is paronite. That is why the presence of a gasket can only be seen on devices with a flat connection. Cone-shaped devices do not have such sealing technology.

Purpose

The main function that American plumbing performs is the quick and convenient connection / disconnection of pipes or parts of various shut-off and control elements. In this case, this combination of these devices is carried out with the help of only one union collar. It is also worth noting that in such a form as "American" (plumbing), polypropylene can be operated from 1 to several decades, while for a high-quality connection only periodic replacement of the gasket is required. Those who use this device in the domestic water supply system are very satisfied with its use. Indeed, American plumbing has undeniable advantages over conventional locknuts and couplings. In addition to performance, the range of application of this tool has expanded significantly with the advent of corner devices designed to work in both hot and cold water supply systems.

But despite the fact that faucets in American plumbing can be straight and angled and operate in different temperature conditions, this does not mean that they will function smoothly at extreme temperatures. The operating range of this device is from minus 20 to plus 120 degrees Celsius. For comparison, conventional plastic tools can be operated at temperatures up to +90 degrees.

Material

Most often, this mechanism is made of cast iron or brass. At the same time, it may contain a small amount of nickel and chrome-plated materials. There are also combined "American" plumbing with a mixture of brass and stainless steel (in some cases, it is possible to use polypropylene parts).

How much does an "American" plumbing cost?

The price of these devices is very affordable for everyone - from 200 to 300 rubles, which allows them to be used in almost every water supply system, whether it is a private house or an industrial building.

This is the name of the type of threaded connection of pipes in water supply and hot water systems. With the appearance on the market, the American quickly gained popularity among plumbing professionals due to the ease of installation and the reliability of joining pipeline elements.

If you need to connect pipes - an American is ideal. Indeed, later, when performing repair work, there is no need to dismantle part of the network.

It is impossible to assemble a pipeline from a single pipe. It is necessary to perform rotations and connections of pipeline elements in order to obtain the desired configuration. Fittings have always been used to make joints.

You can also install using a coupling, which in the standard version is a threaded part. When connected, it is screwed onto the threaded part.

The next part is rotated into the clutch and such an operation (especially if all the elements are large) is quite a noticeable inconvenience.

What is an American

• threaded fittings - are attached to one part of the water pipe at the connector point;
• reciprocal branch pipe with a shoulder - is installed on the second end;
• union nut - is installed on a fitting with a flange before it is installed in its location.

Further, when tightening the nut with pressure on the shoulder, the fittings are tightened one to one and these two parts are compressed. Gaskets are used to ensure the tightness of the docking with the help of a coupling. And with a conical joint, it is not required.

If it is necessary to dismantle the section docked by means of an American, it is enough to unscrew the nut, while the mating elements of the pipeline remain motionless.

Types of docking nodes. The number of design solutions for installation corresponds to the number of varieties of molded products.

By type of materials used

It provides for the use of homogeneous elements, primarily in order to avoid electrolytic corrosion, therefore fittings are produced in various designs:

1. . The life cycle of such parts is also limited by the tendency to form lime deposits from water on internal surfaces.
2. Copper- less susceptible to corrosion, they are used only on pipelines made of the same material.
3. brass- the most popular in application, resistant to oxidation, durability is at least 50 years.
4. Polypropylene- in terms of strength characteristics and ease of use, they are increasingly competing with metal products.
5. Polymer– have all the advantages of plastic products. For polypropylene pipes - American is the best type of connection.
6. Combined- are used as adapters when joining pipes made of metal with plastic ones during partial replacement of the pipeline. To make such fittings, a threaded metal part is pressed into a plastic body.

By type of assembly method

In addition to differences in the materials of manufacture, the threaded connection differs in the design of the docking units.

They are threaded, with different threading directions, having internal or external threads on the sides. Samples with a conical joint are also used, with the help of which an American connection is made using a persistent compression ring under the nut.

Video

Such a variety of fittings creates certain difficulties in choosing them for an inexperienced person, but it gives real pleasure to professional performers.

Surface protection method

What are American women by type of protective coating? Steel and cast iron products are covered with a protective nickel or zinc coating to protect against corrosion.

For plastic or stainless analogues, protection is not applied. In this regard, it is recommended to use linings for pipe wrenches or special wrenches with internal engagement of the part.

Docking metal components

Pipelines for various purposes made of metal are still widely used in plumbing. Therefore, the installation of metal pipes is widely used in a variety of ways.

For simple joining, threads must be cut at the ends of the elements to be assembled using a standard threading tool. The American is screwed onto the prepared ends, while it is necessary to seal the threads by winding the FUM tape or strands of flax fiber.

The final connection is made by tightening the nut and installing the gasket. If the connector is reused, the gasket must be replaced. The joint is reliable and maintainable. What are Americans for metal components:

• direct connection of metal pipes;
• installation made at right angles, as well as angles of 30 and 45 degrees;
• installation of cantilever water supply elements with a pipe, such as taps, mixers, air vents;
• threaded connection to change to a different diameter;

American allows you to get a sealed joint in pipelines of any configuration.

Docking of plastic components

The connection of the components of pipelines made of composite materials has its own characteristics. Docking of polypropylene pipes is carried out by welding with special equipment. The process is very simple and is carried out on site during the installation process.

Video

Designs are widely used where docking with a polypropylene pipe is made on conical American women, where devices with a sealing ring are used.

The connection of polypropylene pipes with an American is the most reliable and almost the only way of docking using a detachable coupling, including connecting a heated towel rail.

Several types of connections are used for polypropylene pipes:

• coupling with external thread;
• coupling with internal thread;
• device with simultaneous use of internal and external threads;
• angular, produced with an angle of 30, 45 and 90 degrees for installation in hard-to-reach places.

Installing a towel dryer

The installation of such a device in the bathroom can serve as an example of using a threaded connection for inserting additional equipment. The heated towel rail is connected either to the heating system or to the hot water circuit.

Video

In the second case, you will have to use the services of the DEZ to turn off the DHW riser for several hours, in the first case, you will have to wait until the end of the heating season.

Work can be performed in the following order:

1. Install the dryer in its permanent location.
2. Make a tie-in into the DHW or heating riser with the installation of threaded fittings for inlet and outlet flows.
3. Install corners with ball valves on them.
4. Connect the heated towel rail through plastic pipes. The critical temperature for them is 95 degrees, in neither system such a temperature is applied.
5. On the upper register, install a valve to bleed air from the system, otherwise the air lock may prevent the circulation of the coolant.
6. Check for leaks in the dryer by opening the inlet and outlet ball valves. If there are leaks, you need to re-check the joints by applying additional seals on the threads. Linen tow, fluoroplastic sealing material (FUM) in the form of a tape or cord are suitable for this.
7. The installation of ball valves will allow for repair work without disconnecting the riser. It should be noted that the connection of a heated towel rail with a polypropylene pipe requires a careful attitude, since the clamping ring cannot always be reused due to its deformation.

Connecting the heated towel rail to the riser with a polypropylene pipe using conical American women allows you to avoid the use of pipe benders. This reduces the complexity of work and their adjustment in place.

An example of connecting a heated towel rail through a threaded connection is shown in the figure.

Coupling element dimensions

In domestic plumbing standards, American women are classified as "sleeve connections with a union nut."

Naturally, their size range corresponds to that on the molded elements of water pipes. What types there are depends on the method of docking to the main line or console element.

Video

So, when installing a faucet or faucet, as an element of plumbing, American women are used in sizes from 3/8 to ¾ inch with conical threads. This allows you to make a reliable installation in just a few turns of the nut.

For water pipes, they are used in the range of 10 - 50 mm, the maximum indicator is typical for connection with a heated towel rail.

To connect pipes made of polymers, special couplings are used - conical American women, onto which the plastic sheath is literally pulled by the force of the screwed nut through the thrust ring, providing a tightness of the joint many times greater than the pressure in the system.

Pipe dimensions

For an American woman in plumbing, threads can be selected based on the data shown in Table 1.

When using plastic pipes, the properties of the material must be taken into account. such as elasticity, plasticity chemical resistance.

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Therefore, for polypropylene products, an American is practically the only connection method that provides high-quality docking. Applying them locally, it is possible to assemble a pipeline of any configuration with a high degree of reliability.

For installation by means of an American, its dimensions must be adequate to the pipes used. For cold and hot water networks, this is an inch or an inch and a quarter; for heating systems in a private house, it is better to use one and a half inch products.

When using plastic products for drip irrigation systems, it is sufficient to apply half-inch sizes.

It should be remembered that a temperature of 95 degrees is critical for polypropylene pipelines, this parameter must be controlled when connected to heaters. The temperature at the outlet of the device may be above the permissible limits.

When partially replacing the water pipe with a plastic one, the American is used as an adapter.

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When installing with American women with a protective coating, you need to use a special tool that does not damage the cladding layer.

When selecting components for the pipeline, it is necessary to take into account their location in terms of accessibility and functionality.

Conclusion

The invention of the method of connecting the elements of the pipeline "American" has become a revolutionary event in the field of installation of plumbing systems of any complexity. As a result, such a complex process became accessible even for performers with minimal skills in this area.

Without a doubt, complete this type of connections and success to you!

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