Raccord de réduction 42x28 CU B Press P5243 04228000

Application and Characteristics of the B Press System

The 42x28 mm reducing connector is a key component in installation systems, enabling safe and leak-tight connections between pipes of different diameters. This device is designed for use in water, heating, and gas installations where a transition from a pipe with an outer diameter of 42 mm to one of 28 mm is required. A key feature of this solution is the use of press technology, which eliminates the need for open flame or soldering during installation. This allows installers to work in difficult conditions and in locations where open flame is prohibited or hazardous.

The system is based on precisely manufactured fittings made of Cu-DHP copper (99.99% purity) and CuSn5Zn5Pb2-C bronze. This material selection ensures corrosion resistance and long-term performance in various environments. In this specific model, one side features a press sleeve designed for a 42 mm pipe, while the other side is a push-in end for a 28 mm pipe. This ensures a durable connection without the need for additional gaskets or sealing tapes – leak-tightness is guaranteed by an integrated sealing ring with the PI (Press Indicator) system.

Construction and Installation Principles

Installation of the connector requires a dedicated pressing tool operating on a three-point clamping principle. The fitting profile is designed so that, once crimped, it forms a permanent, irreversible joint. Note the specific external shape – the hexagonal profile prevents the component from rotating during tightening or screwing on other installation parts, significantly facilitating work in confined spaces.

For installers, the visual confirmation of correct installation is crucial. The PI Press Indicator system allows immediate detection of leaks at pressures as low as 0.1 bar if the connection has not been properly crimped. This additional safety feature minimizes the risk of future failures and eliminates the need for repeated inspection work. The fittings are compatible with copper pipes according to EN 1057 (hard, semi-hard, and soft), making them a universal solution for most standard sanitary installations.

Compliance with Standards and Operating Conditions

The product has been manufactured in accordance with rigorous European and national standards, confirming its suitability for professional sanitary and gas installations. The materials used are Cu-DHP copper compliant with PN-EN 1254 and CuSn5Zn5Pb2-C bronze (CC499K-DW) according to PN-EN 1982, ensuring high corrosion resistance. The fittings also meet the requirements of UNI 11065 regarding connectors for copper pipes. Consequently, the B Press system is approved for use with water, heating, and gas media (depending on the specific series designation), offering safe operation without leakage risk while maintaining raw material quality standards sourced from Spain and Poland.

Key technical data for this model include a simple reducing shape connecting a 42 mm press sleeve with a 28 mm push-in end. The entire assembly is made of high-quality copper and bronze, with the sealing system based on an O-ring equipped with a PI indicator. Raw materials are primarily sourced from Spain and Poland, ensuring compliance with EU standards. Thanks to high-quality manufacturing and adherence to standards, this connector ensures stable performance for many years without the need for servicing mechanical joints. It is a solution proven in practice by construction professionals and sanitary installers throughout Europe.