Steel bypass reducing tee 18/12 1509257000

Application and Construction of the Steel Fitting

This fitting is designed to create branches in piping systems where it is necessary to connect pipes of different diameters while maintaining continuous flow in the main line. In this specific model, the connection involves three sections: two with a nominal diameter of DN 10 (corresponding to a 12 mm pipe) and one section with DN 15 (18 mm pipe). Thanks to its specific "pass-through" shape, the main pipe passes through the fitting without constriction, minimizing flow resistance, while the branch pipe is connected at a 90-degree angle. This solution is typical for heating, water supply, and gas installations, where obstacles often need to be bypassed or pipes routed in different planes without unnecessary additional connectors.

The material used is galvanized steel (Fe/Zn88), ensuring corrosion resistance under standard conditions for internal installations. The zinc coating thickness ranges from 8 to 15 µm, which is sufficient for most applications in residential and public buildings. The entire system is based on press-fitting technology, eliminating the need for adhesives, welding, or threading. The connection is achieved by pressing the clamping ring against an O-ring seal, guaranteeing tightness after the first installation.

Controlled Leak Function and Installation Safety

One of the key features of this tee fitting is the use of LBP (Leak Before Press) technology. In practice, this means that if the installer forgets to press the connection or does so incorrectly, the system will not be tight, and water (or other medium) will begin to leak through the seal before the system is commissioned under operating pressure. This makes installation errors immediately visible during pressure tests or system filling, rather than only after walls or floors have been closed. This is a crucial safeguard for both the investor and the installer, eliminating the risk of costly secondary repairs.

The sealing is based on an EPDM rubber O-ring, which offers good resistance to temperature and aging in a water environment. Pressed connections are durable and resistant to vibrations and cyclic pressure changes within the installation. It is important to note that during installation, dedicated pressing heads compatible with the KAN-therm Steel system must be used – only then is proper compression of the ring and achievement of full tightness in accordance with the manufacturer's standards guaranteed.

Practical Application and Operational Benefits

The choice of a galvanized steel pass-through reducing tee proves particularly effective where high mechanical strength of connections is required, combined with the need to change pipe diameters at a single branching point. Due to the elimination of the need for additional reducers or transition couplings, the entire installation section becomes more compact and aesthetically pleasing after installation.

The main advantages resulting from the construction of this component include:

• Fast installation: Pressing a single connection typically takes only a few dozen seconds, significantly reducing the overall installation time compared to traditional methods (e.g., welding or threading).
• Mechanical resistance: The steel housing protects the seal from mechanical damage during pipe transport or finishing works in the building.
• Dimensional versatility: The connection of DN 10 and DN 15 diameters allows for flexible design of heating circuits or hot and cold water distribution manifolds.
• Safety: The LBP function ensures the quality of each joint without the need to dismantle walls for visual leak inspection after the system is filled with water.

It is worth noting that this product is part of the broader KAN-therm Steel system, ensuring full compatibility with other components of the series – from multilayer pipes with an aluminum layer to valves and manifolds. This enables the construction of coherent installations with a long service life, meeting the rigorous requirements of modern building standards regarding safety and energy efficiency of buildings.