Réducteur de pression 6243.2 3/4 pouce 90°C 4-8 bar 6243.20.005

Application in hot water and high-temperature installations

This device is dedicated to precise pressure regulation in water installations where standard solutions are insufficient due to elevated temperatures. Its primary function is to maintain constant outlet pressure regardless of fluctuations in the supply network, thereby protecting expensive fittings and sanitary equipment from mechanical damage. A key feature distinguishing this model from commonly used pressure reducers (e.g., series 315) is its ability to operate in environments with temperatures up to 90°C. Consequently, it is suitable not only for cold water applications but, above all, for domestic hot water (DHW) circuits and systems connected to heating boilers, where water temperature regularly exceeds 60°C.

Engineered for durability and wide adjustment range

This model features a design consistent with popular pressure reducers, yet with an expanded range of technical parameters, resulting in greater installation versatility. The version designated as 6243.2 is designed for operation within a higher working pressure range – from 5 to 8 bar. This is particularly important for installers servicing high-rise buildings or systems equipped with additional pressure-boosting pumps, where standard reducers (adjustable up to 5 bar) might be inadequate.

To facilitate installation and adaptation to existing networks, the device is available in various nominal diameters. In the case of this specific unit, the connection size is 3/4 inch, which is the standard for most residential and household sanitary installations. The maximum allowable inlet pressure is 25 bar, providing a substantial safety margin even under challenging network conditions.

Key parameters and operational benefits

The selection of this model is justified by its specific technical capabilities, which exceed standard market solutions. The materials used in production enable long-term operation at high temperatures without loss of tightness or alteration of regulatory parameters – a critical factor in installations with DHW tanks, where temperatures can reach 90°C. The working pressure range of 5–8 bar allows for optimization of system performance in applications where lower values could cause issues with heating equipment or high-flow showers. The 3/4" threaded connection enables quick installation without the need for additional reducing adapters, shortening installation time and reducing the number of potential leak points. Additionally, the permissible inlet pressure of up to 25 bar ensures stable operation even during sudden pressure surges in the water supply network.

This device constitutes a robust component in the installation protection system, combining pressure reduction functions with resistance to thermal conditions characteristic of modern heating and sanitary systems. Its construction ensures stable operation over many years, minimizing the risk of failures resulting from excessive pressure or overheating of sealing elements.