An effective and reliable fitting for connecting pipes - American: types and features of use in plumbing. Detachable combined "American" with internal thread Technical characteristics of the American

	d	G	D	L	l
D20 * 1/2	20	1/2	28	37	16
D20 * 3/4	20	3/4	28	38	16
D25 * 1/2	25	1/2	34	40	18
D25 * 3/4	25	3/4	34	41	18
D32 * 1	32	1	43	45	20

One of the actively used types of connections for pipelines with the supply or transportation of water is the so-called American coupling. The peculiarity of this module is that after installation, the connections can be disconnected and, without negative consequences, the pipes can be connected again using a special nut on the body.

Combined American woman with female thread connects metal and plastic pipes, and also serves to connect valves or water heating devices with metal outlets.

Technical characteristics of the American

The connection of a combined American female with an internal thread is performed in two types. The metal part is connected using threaded fittings, and the plastic part is connected using a special polypropylene welding.

The main technical characteristics that are important to consider when installing an American woman in a pipeline are as follows:

the pressure in the pipe system should not be more than 2.0 MPa;
the water temperature is not higher than 80 degrees (resistance to temperatures below one-piece couplings);
connection using special equipment;
no direct influence external environment onto the metal part of the coupling.

Specifications combined American female with female thread ensure a long service life of the device. The main criteria for maintaining durability are compliance with the modes of use and the quality of the materials from which the coupling is made.

The use of combined American women

American plumbers call a ready-made quick-disconnect element for connecting 2 pipes.

For these purposes, a clutch with a squeegee was widely used in the past.

A coupling is a length of pipe with an internal thread or a wide nut. The coupling is used for connecting pipes of the same diameter, as well as two pipes of different sizes. In the first case, it is called a coupling, in the second - a transitional.

When installing and adjusting the connection, it is often necessary to supplement the coupling with a squeegee. A squeegee is a piece of pipe with an external thread at both ends.

Device

By its design, the American is a combined coupling, a collapsible part, consisting of 2 threaded fittings and a union nut.

An American woman can be flat, in this case the tightness of the connection is achieved by a gasket. It is the cheapest and most compact.

During operation, it may be necessary to tighten the nut and replace the used gasket. For these reasons, it is best not to hide the gasket connections.

Another option is a conical American.

Here a gasket is not required, since the polished parts of the fittings, made like a cone, are tightly pressed against each other when the nuts are tightened.

The deviation along the axis of the pipes to be installed should not exceed 5 degrees. They should be carefully checked for hidden defects, as they are usually used in the most critical connections.

Expert advice: for critical connections operating in conditions of temperature difference: water heaters, heated towel rails, use a conical American, it is more expensive, but more reliable.

American - a versatile and convenient device on a single nut.

To connect the pipes, you just need to tighten the union nut. Quick and convenient installation with the help of an American woman has replaced traditional couplings and squeegees.

With the help of American women, the transition to a pipe of a different diameter or from a different material is solved. With an American, you can create a corner connection.

The convenience of an American-type connection has led to the fact that some manufacturers of plumbing equipment use it as a mounting element in the design of branded taps, metering devices, filters, etc.

American is produced from the following materials:

The last option is a combination of polypropylene with stainless steel, it is often used when installing plastic risers.

Depending on the thread, external or internal, there are three types of American women:

coupling thread;
clutch-clutch;
thread-thread.

There are also options without threads for weld connections.

The choice of a suitable part makes it possible to dispense with one connecting unit without additional elements during installation.

A detachable connection of the American type is produced for all common pipe sizes.

In practice, 1/2 "and 3/4" are the most common sizes to deal with.

Advantages

Connecting assembly

To tighten the cap nut of American women, use an ordinary open-end or adjustable wrench.

Do not use a gas wrench, it may damage the nickel plating.

If the nut has decorative coating, use pads. This role can be played by suitable pieces of plywood, plastic or rubber.

When installing metal-plastic pipes, you will have to use a special tool - an internal key. With its help, the press fitting is twisted during installation. The most common shape is a cylinder with two recesses for the hooks, sometimes a hexagon.

Often, pliers or another handy tool are used instead of a key. However, there is a risk of damage to the product. If you plan to install several pipes, it is better to purchase an internal key for American women.

Those who know how to work with metal can make a homemade cone wrench to the required size.

Tapering is essential to accurately hit the recesses.

For American 1/2, the corresponding key sizes are 12x12 mm and 10x10 mm. The shape of the key is L-shaped, the length of the handle is approximately 150 mm.

They make such homemade products from unnecessary sections of profile fittings.

Watch the video, which explains in detail the device and features of the use of an American woman in plumbing:

American split 20 x 1/2 "with female thread FV-Plast Czech Republic is a fitting that connects a polypropylene pipe to sanitary fittings. It is soldered at one end to the PPR pipe and screwed on the other (union nut) onto a metal supply to a particular device (heater, expansion tank, etc.) The American provides an assembly-friendly connection without the need to turn the entire fitting around the pipe. An important part of this connection - the gasket - must be maintained in working order during all assembly-disassembly cycles.

Fv-plast fittings are very flexible and durable, are not affected by corrosion and deformation, they can easily withstand high temperatures and chemically aggressive environments. Czech products FV-plast occupy a leading position in the polypropylene market, the products will last up to 50 years.

Specifications:

Products and services FV-Plast (Czech Republic) used for water supply systems, heating, underfloor heating with heat carriers in which water and antifreeze are used. Fittings can be safely walled up both in the wall and in the concrete screed of the warm floor.

Specifications

Delivery

In-store purchases delivered total cost which is over 2000 rub. ( excluding delivery, for individuals). Minimum order amount for Legal entities 5000 RUB

Express order for buyers from regions: when paying for the purchase on the day of the order, we will immediately send the order to the selected shopping mall (check with the manager for details).

For self-pickup, you can place an order of any value.

Delivery in Moscow (inside the Moscow Ring Road):

delivery of KAISER mixers - 300 rbl
delivery of VIKO mixers - RUB 500
delivery other goods -RUB 500

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