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Description
What is this Bonfix alu-press fitting?
The Bonfix Alu-Press brass straight coupling 63 mm is a press fitting designed to connect two multilayer pipes (PEX-AL-PEX) with an outer diameter of 63 mm. This fitting is used in systems where maximum flow capacity 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 63 mm press coupling is mainly used in industrial systems, large commercial installations and main distribution pipelines where high volumes are transported continuously.
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
- flexibility of plastic
- dimensional stability of aluminium
- corrosion resistance of brass
Applications
This Bonfix 63 mm press coupling is used in various systems:
- drinking water systems
- heating systems
- cooling systems
- industrial installations
- compressed air systems
Suitable for multilayer pipe 63 × 4.5 mm and is compatible with multiple press profiles.
Advantages of this 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
Installation and assembly advice
For correct installation, follow these steps:
- Cut the multilayer pipe square using a suitable pipe cutter
- Calibrate and deburr the pipe
- Insert the pipe fully into the fitting until it reaches the stop
- Press the connection using a suitable press tool
- 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 number | 2000155 |
| EAN nummer | 8717845019167 |
| Brand | Bonfix |
| Model | Straight (muff) |
| Connection | Press |
| Number of connections | 2 |
| Connection diameter | 63x63 mm |
| Pipe size | 63x4.5 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
When should you use a 63 mm press coupling?
Which pipe is compatible?
What is the difference between 50 mm and 63 mm?
When should you choose 63 mm instead of 50 mm?
Is 63 mm suitable for main pipelines?
Which press profile is required?
Is this fitting suitable for drinking water?
What happens if the pipe is not properly prepared?
Is this fitting maintenance-free?


