Smart PUSH fittings

Complete connection system for plastic and copper pipes.



Tweetop Smart PUSH fittings form a safe, quick and easy to implement connection system for:

  • plastic pipes - PERT-Al-PERT, PEX-Al-PEX and PERT-EVOH in 16, 20 and 25mm diameters
  • copper pipes with 15mm diameter

They can also be used with other plastic pipes that fit within the measurement tolerances shown in point 2a and copper pipes shown in point 2b.

Smart PUSH fittings are made of high-quality brass. They consist of the main body, sealing, clamping and pressure rings as well as the highest quality EPDM O-ring gasket. Further design details are shown in the diagram below.




  1. Main body - Brass (type CW617)
  2. Sealing ring: Nylon
  3. Clamping ring: Stainless steel (type 316)
  4. Pressure ring: Plastic
  5. Outer ring: Plastic
  6. O-ring gasket: EPDM
  7. Stiffening sleeve: Plastic (only for fittings dedicated to plastic pipes, fittings for copper pipes don't have this component)

Key advantages

Ressistance to corrosion
No local reduction of cross-section - low losses
Fast and easy assembly

the offer includes fittings dedicated to both copper and plastic pipes: homogeneous PERT, multilayer PERT-Al-PERT and PEX-Al-PEX

fittings can be used in domestic water, heating and cooling installations (including surface type)

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Eliminates the need to use specialized and expensive tools
Possibility of 20-fold connection and disconnection
Especially recommended for use in repair work

and for connecting heating devices when space is limited

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Area of application

Types and diameters of pipes

Fittings are designed to work with the following types of pipes:

  • Homogeneous PERT-EVOH, multilayer PERT-Al-PERT and PEX-Al-PEX - diameters and dimensions are shown below:
Outer diameter [mm]Tolerance [mm]Inner diameter [mm]Tolerance [mm]Wall thickness [mm]Tolerance [mm]
16 +/- 0.3 12 +0.1/-0.2 2.0 +/- 0.3
20 +/- 0.3 16 +0.1/-0.2 2.0 +/- 0.3
25 +/- 0.3 20 +0.1/-0.2 2.5 +/- 0.3
  • Copper pipes - diameters and dimensions are shown below:
StandardOuter diameter [mm]Wall thickness [mm]
EN 1057-1996 15 -- 0.7 0.8 1
Work parameters

The maximum parameters of continuous operation in water and heating installations are shown in the table below:

Type of installationType of pipeWorking temperature [°C]Working pressure [MPa]
Domestic water
PERT-AL-PERT 60* 1.0
PERT 60* 1.0
copper 60* 1.0
PERT 80 0.6
copper 95 1.0
  • anti-legionella overheating is allowed
  • using agents with a different chemical composition from the mentioned above is not possible
  • when installing fittings, technical parameters recommended by pipe manufacturers should also be taken into account