Reducing connector 28x15 - thin-walled galvanized carbon steel, crimped PC5243 0281500

Application and Construction of the Reducing Coupling

This component from the series of press-fit steel fittings is used to connect pipes of different diameters in gas and water installations where tightness and mechanical strength are required. The main function of this coupling is to provide a smooth transition between a pipe with an outer diameter of 28 mm and a pipe with a diameter of 15 mm. Thanks to the use of press-fitting technology, installation is carried out without the need for welding or threaded connections, which significantly accelerates the installer's work and eliminates the risk of errors resulting from improper tightening of the joint.

The construction is based on a thin-walled profile made of carbon steel, which has undergone galvanic zinc coating. Such surface treatment provides protection against corrosion under standard conditions, which is crucial for long-term operation inside buildings. The component features a stop flange that facilitates pipe centering during installation and ensures the correct position of the pressing head. The entire assembly is manufactured as a one-piece model, which translates into fewer potential leakage points compared to multi-piece solutions.

Key Technical Features and Operating Conditions

It is worth noting the connection specifications: one side is a crimped sleeve (for a 28 mm pipe), and the other is a push-in end (for a 15 mm pipe). Both sides are prepared for press-fitting installation, which requires the use of an appropriate pressing head dedicated to galvanized steel. The alloyed steel material guarantees adequate hardness and resistance to deformation during the pressing process.

This component is designed for operation at a working pressure of up to 16 bar at a temperature of 20°C. This means it will perform well in most standard low-pressure gas installations and water supply systems where extreme thermal or pressure fluctuations do not occur. The product complies with European standards for steel fittings used in installation systems.

For precise installation planning, it is worth noting that the coupling has a total length of 68 mm, allowing for estimation of the space required for installation in tight areas. The core material is carbon or alloy steel, protected by a galvanic or electrolytic zinc coating, and the connection type is a press-fit system. All these parameters affect durability and the method of integration with the rest of the piping system.

Installation and Practical Aspects of Use

For the installer, ease of dimension identification is crucial – the difference between diameters of 28 mm and 15 mm is clear, minimizing the risk of error when selecting the fitting on-site. The stop flange acts as a physical stop for the pipe, facilitating uniform compression during pressing. It should be noted that the sealing material is EPDM rubber (ethylene-propylene-diene), which is characterized by good resistance to aging and the action of various media, although in the case of gas installations, it is always advisable to check compliance with local regulations regarding gaskets in a given type of installation.

The product does not have a drain valve or air vent – it serves exclusively as a connecting and reducing element. Its one-piece construction means that after pressing, it becomes an integral part of the installation, requiring no additional maintenance or tightening in the future. A weight of approximately 55 grams makes the component lightweight and easy to transport and handle at heights or in hard-to-reach installation areas. Thanks to the electrolytic zinc coating, the surface is smooth, facilitating pipe cleaning before installation – crucial for the tightness of the press-fit connection.