Features of connecting plastic pipes with American fittings

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Ways of connecting polypropylene pipes

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Polypropylene is a completely synthetic type of material, the structural characteristics of which are thermoplastic and soft. In view of these features, special fasteners are required for the connection of plastic pipes. What can happen if you apply conventional methods that are suitable for steel or cast-iron pipes. So, compressor fasteners distort pipes, and the threaded thread does not give the necessary tightness and strength.

And then the so-called American will come to your aid, the name of which is common for several types of fittings( coupler, crane, corner) that have a union nut in their construction.

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There are several types of fitting of a fitting and polypropylene pipe. Each of these options directly depends on the design of the American fitting itself.

  • Coupling with thread from the outside. It is used for connecting plastic and steel pipes in water supply systems.
  • Coupling with internal thread. It is used similarly with the first kind.
  • Coupling simultaneously with internal and external thread. Used for hot and cold pipelines, as well as for heating systems;
  • Corner is ideal for use in restricted access areas and forms an angle( knee) of 30.45 or 90 degrees;

Separately consider another type of locking device-American - ball and corner valves. Such devices are installed with the help of an ordinary wrench, which is in any house. In addition, the corner cock replaces several connections.

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Advantages of using American

This universal fastener is used for joining cast iron, steel, plastic, copper and plastic pipes.

And, as for the last type of pipe - the American is simply an indispensable element with many positive factors:

  • . If it is necessary to separate the pipeline into separate parts, simply unscrew the fitting from the thread;
  • The connection of the pipe and the coupling is made by twisting the nut simultaneously on these two parts, which allows the structures themselves to remain stationary. This feature of the installation and makes an American so in demand for plumbing manipulations.
  • The use of a special rubber gasket makes this connection sealed and durable;
  • Possibility of repeated use of the part;
  • Maintenance and repair work does not require the use of special equipment;
  • Allows to connect polypropylene pipes of different diametric sizes.

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Dimensions of fittings for polypropylene pipes

For the installation of various plastic communication systems, pipes with a diameter varying from 20 to 40 mm are most often used. But at the same time, the diametrical fitting size for such products can reach up to 110 mm and such elements are used to join large main pipelines. In everyday life, polypropylene pipes and accessories to them with a size of 20 - 30 mm are most often used.

Correctly and accurately picking up the fastening element, which in diameter should coincide with the diameter of the pipe, it can be done independently. Therefore, when buying such goods, consult with specialists and pay attention to the marking.

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