It is always
interesting to learn new technologies and new markets. For example, the North
American market is always something special. Regardless of the specific
product.
Since we are primarily
interested in heating and water supply systems, we will start from the system
of pipelines and fittings.
Pipes made of
cross-linked polyethylene on American open spaces are very popular. Used mainly
polyethylene, made with peroxide. Moreover, it is labeled as REX-A.
Today I propose to
familiarize myself with the market of fittings intended for such a variety of
pipelines.
 |
| Fittings for PEX pipes |
The market is popular with five types of fittings:
1. Crimp fitting
2. Fittings for quick installing (push fittings)
3. Expansion
fittings
4. Compression
fittings
5. Press
fittings
In addition to the first type, all fittings are widely
used both in Europe and in Ukraine. It is more interesting to consider crimp
fittings.
Among the main producers of such products are the
world giants Watts, Viega, Nibco, as well as local companies - Everhot, Apollo,
A.Y. McDonald, Matco-Norca, Sioux Chief, etc.
According to the configuration of the connection, they
should be divided into three subspecies:
-
with a metal ring;
- with
compression sleeve;
- with press-in
clamp;
As the material of the body of fittings can be brass,
copper and polyphenylsulfone PPSU.
Installation of such elements is very easy. Consider
for example the crimp system of TM Apollo fittings.
The first system is a connection with a copper ring.
First, we put the ring on the pipe.
Then the fitting is inserted. Moreover, notice - no additional
manipulations are needed. No calibration, no chamfer, no expansion. The inner
diameter of the ring is greater than the outer diameter of the tube.
After that, place the ring over the body of the fitting.
For pressing, we need a special tool. With its help, the ring is pressed
into the fitting.
Simple movement - and the connection is ready!
The final step is to test the connection. To do
this, you need a special plate. If the connection does not pass into the hole
corresponding to the diameter, then a repeated crimping procedure is necessary.
Fittings with clamping yoke are connected in a similar way.
As a result we get a reliable connection: quickly and
efficiently! And for installation, only one tool is required!
In addition, if you consider that the product is the
most affordable in the given niche, then immediately there is an explanation of
its popularity.
Such pipe systems comply with American ASTM standards
- F1807 and F2159.
Perhaps in a certain period such systems will appear
on the market of water supply and heating in Ukraine.
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