Bonfix Alu-Press Straight Coupling 26x26 mm | Brass Press Fitting

Bonfix Alu-Press Straight Coupling 26x26 mm Brass Press Fitting for PEX-AL-PEX

Bonfix Alu-Press Straight Coupling 26x26 mm Brass Press Fitting for PEX-AL-PEX
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Description

What is this Bonfix alu-press fitting?

The Bonfix Alu-Press brass straight coupling 26 mm is a press fitting designed to connect two multilayer pipes (PEX-AL-PEX) with an outer diameter of 26 mm. This fitting is widely used in drinking water, heating and cooling systems where a reliable and leak-free connection is required.

The fitting is made of high-quality brass and features a stainless steel press sleeve with an EPDM seal. This ensures a durable connection that can withstand high pressure and temperature.

This 26 mm press coupling is commonly used in larger installations such as residential and commercial building systems, where higher flow capacity is required.


Why choose an alu-press fitting?

Press fittings are one of the most commonly used connection methods in modern installation systems. Unlike soldering or compression fittings, the connection is created by permanently pressing the fitting onto the pipe using a press tool.

This results in:

  • fast installation
  • leak-free connection
  • high reliability

The PEX-AL-PEX system combines:

  • flexibility of plastic
  • dimensional stability of aluminium
  • corrosion resistance of brass

This makes it highly suitable for modern installations.


Applications

This Bonfix 26 mm press coupling is used in various systems:

  • drinking water systems
  • central heating systems
  • underfloor heating
  • cooling systems
  • oil-free compressed air systems

The fitting is designed for multilayer pipe 26 × 3.0 mm and is compatible with multiple press profiles.


Advantages of this Bonfix press fitting

  • quick installation using press tools
  • reliable leak-free connection
  • suitable for drinking water and heating systems
  • corrosion-resistant brass
  • compatible with multiple press profiles
  • long service life

The use of press connections significantly reduces the risk of installation errors.


Installation and assembly advice

For correct installation, follow these steps:

  1. Cut the multilayer pipe square using a suitable pipe cutter
  2. Calibrate and deburr the pipe
  3. Insert the pipe fully into the fitting until it reaches the stop
  4. Press the connection using a suitable press tool
  5. Visually check the connection

Suitable press profiles include TH, H and U.

Always use tools and components that are compatible with the selected press system.


Why buy from Energyby?

Energyby specialises in installation materials for heating and solar thermal systems. With us you benefit from:

  • fast delivery from stock
  • competitive pricing for professionals and DIY users
  • reliable A-brands such as Bonfix
  • expert advice

Browse our full range of alu-press fittings in our webshop.

Specifications

Article number2000135
EAN nummer8717845019129
Brand Bonfix
Model Straight (muff)
Connection Press x press
Number of connections 2
Connection diameter 26x26 mm
Pipe size 26x3.0 mm
Fitting material Brass
Press sleeve material Stainless steel
Sealing material EPDM O-ring
Max. operating temperature -20°C to +90°C
Peak temperature 120 °C
Max. operating pressure 10 bar
Certification dvgw
kiwa
Press profile TH
H
U
B
F
CH
Application Heating
Tap water
cooling
Oil-free compressed air
Collecties 2 Alu-press fittings
Suitable for Drinking water
Compressed air
Heating water
Cooling water

Frequently Asked Questions

A 26 mm press coupling is used in systems where higher flow capacity is required compared to 16 mm or 20 mm pipes. This is common in larger residential installations and commercial buildings.
This fitting is designed for multilayer pipe 26 × 3.0 mm (PEX-AL-PEX). Using the correct pipe size is essential for a secure and leak-free connection.
The main difference is flow capacity:
  • 16 mm → small systems
  • 20 mm → medium installations
  • 26 mm → larger systems with higher demand
Yes, this fitting can be used in underfloor heating systems, especially in main supply lines or larger manifolds where higher flow is required.
Commonly used press profiles include TH, H and U. Always verify compatibility with your press tool.
Yes, when installed correctly, press fittings provide a permanent, maintenance-free and leak-free connection.
If the pipe is not calibrated or deburred, the sealing ring may be damaged, which can result in leaks or improper connections.
No, press fittings create a permanent connection. If a removable connection is required, a compression fitting should be used.

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