Raccord de réduction 18x15 - acier carbone galvanisé à paroi mince à sertir PC5243 0181500

Application and Construction Characteristics

This component is a steel reducing connector designed for installation systems where it is necessary to connect pipes of different outer diameters – in this case, transitioning from 18 mm to 15 mm. Thanks to the use of carbon steel with galvanic zinc coating, the fitting ensures corrosion resistance under typical operating conditions of water installations. It is a one-piece product, which eliminates the risk of leaks resulting from joining multiple elements, and its simple, linear structure facilitates installation in tight spaces.

A key feature of this connector is its suitability for jointless installation methods. One end features a compression sleeve (for 18 mm pipe), while the other end is of the push-fit type (for 15 mm pipe). This configuration requires the use of dedicated pressing heads during installation. It is worth noting that both connections are protected by a zinc layer, which shields the material from rusting both inside and outside the housing.

Operational Parameters and Working Conditions

In practical installation, the most important parameter for this type of fitting is mechanical and pressure strength. This connector is designed for operation at a working pressure of up to 16 bar at an ambient temperature of 20°C. This means it is suitable for standard water supply installations and low-temperature heating systems where extreme pressure fluctuations or very high temperatures do not occur.

The total length of the component is 55 mm, allowing precise adjustment of the distance between pipes without the need for additional extensions. The presence of a stop collar on one of the connections facilitates pipe centering during pressing and prevents its movement during installation. It should be noted that the product does not have built-in drain valves or air vents – it serves solely as an intermediate element in the medium flow.

Key Installation and Material Features

When selecting components for a pressed system, it is important to match the sealing material and the type of protective coating. In this model, seals made of ethylene-propylene-diene monomer rubber (EPDM) are used, which are characterized by good resistance to aging and typical media transported in water installations. The contact surface of both connections (both 18 mm and 15 mm) has been electrolytically/galvanically zinc-coated, ensuring uniform corrosion protection along the entire length of the component.

This element combines the functionality of diameter reduction with the simplicity of mechanical installation – it requires the use of a pressing head to connect the compression sleeve with the Ø 18 mm pipe and the push-fit end with the Ø 15 mm pipe. The entire assembly is made of carbon and alloy steel, ensuring appropriate rigidity while maintaining strength at a working pressure of up to 16 bar at room temperature. The length of 55 mm and the presence of a stop collar facilitate precise installation without the risk of pipe displacement during pressing. The absence of additional accessories such as valves or caps makes this a purely functional reducing element with a simple geometric shape; the product does not have UL or FM certifications, indicating its intended use for standard building installations compliant with local norms for pressed steel systems.