The vector of
development of the market of pipe fittings is directed towards reducing labor
costs when installing it. Because such systems as crimping and press fittings
are gradually losing their relevance. Fittings of quick installation with a
tensioning sleeve and so-called push-fittings come to the arena. The last will be devoted to this article.
 |
| Push-fittings of Uponor RTM system |
The essence of the
connection is to produce it without specialty tool. He just took the pipe and
put it in the fitting.
It is true that not
every manufacturer succeeds in 100% avoiding the preliminary preparation of
pipes before installation. Sometimes a special insert use (for example Wavin
Hep2O). The design of the fitting provides for the placement of a sealing sealant
and metal (or polymer) retainers. Clamps directed in the opposite direction
about the vector of pipe movement during installation. Simply put, put in
there, but you cannot pull back. Because fixators will prevent it. Because
fixators will prevent it.
The production of pipes and fittings of the Wavin Hep2O system is polybutylene.
A rare guest of the Ukrainian heating market. Although in Europe, it is often
used. Especially in UK. |
| Section of connection of the Wavin Hep2O system |
Such connection can be
disassembled and reused. This requires a special accessory.
 |
| Accessory for disassembling the connection of the Wavin Hep2O system |
The dismounting
function also has such systems as TECElogo and ProntoFit from Comisa.
Other systems require
pretreatment of the pipe - calibration and chamfering: Wavin SmartFix, Henco
Vision, Uponor RTM and others. But this is mainly due to the peculiarity of the
multilayer pipe used.
 |
| Cut-out of Push-fitting |
Basically, in such
systems, the parts are made of polymeric materials - polybutylene PB, polyvinyl
sulfone PPSU, PTFE Teflon. But there are also plastic-metal ones. Brass (Comisa
ProntoFit) or copper (Sanha 3fit-Push) is chosen as the metal.
 |
| Fitting systems Sanha 3fit-Push |
Even if the preparatory
operations taken into account, any Push-fitting system is mounted 25-30% faster
than other kind in the market.
They are suitable for
both open and flush mounting (in walls, floors, etc.).
And some versions allow
turning the fitting during operation by 360 ° (for example, Uponor RTM).
So in the near future,
it is necessary to expect the introduction of such systems in the vastness of
Ukraine.
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