Balancing valve for hot water ALWA kombi-4, DN40 V1810Y0040

Balancing valve for hot water – precision and reliability in every system

The Alwa Kombi-4 valve is an indispensable element in domestic hot water installations, designed for both home use and more demanding commercial applications. Its versatility stems from its ability to function as a throttling valve with precise pre-setting, as well as in dynamic regulation systems using a thermal head. This solution allows for effective hydraulic balancing of the installation, ensuring user comfort and optimizing energy consumption.

The valve is made of high-quality dezincification-resistant brass (DZR), which guarantees its durability and corrosion resistance. The pressure class PN 16 and maximum working pressure of 16 bar confirm its reliability even in harsh working conditions. A wide range of Kv values (1.02…16) and a nominal diameter of DN40 make the valve suitable for various installations with different capacities.

Functionality and application

The Alwa Kombi-4 valve is primarily used in circulating lines of domestic hot water, where it serves to precisely throttle the flow and maintain stable pressure. The possibility of mounting a thermal head extends its functionality to flow regulation depending on the temperature, which is particularly useful in systems with thermal disinfection. Additionally, the valve has a position indicator to facilitate reading the settings and a hidden adjustment knob to protect against accidental parameter changes. This gives the installer full control over the regulation process, and the end user can enjoy stable comfort.

The valve is compatible with actuators, allowing its integration with advanced building management systems. The possibility of mounting a drain head allows for easy draining and filling of installation risers without the need to disassemble the valve – this saves time and costs during system servicing. It is also worth mentioning the possibility of automatic temperature regulation and thermal disinfection after mounting appropriate accessories.

Construction features and parameters

The valve is characterized by a solid construction with internal gas tapered threads BSPP-G (ISO 228-1) with a diameter of 40 mm. High regulation accuracy results from the factory calibration of each valve and a cavitation-free insert with a maintenance-free stem seal. The stem angle is 45 degrees, and the housing material is corrosion-resistant brass. The operating temperature range is from 2°C to 130°C, allowing it to be used in a wide range of operating conditions. It should be remembered that the pressure class is PN 16 and the maximum working pressure is 16 bar – these parameters guarantee safe and reliable operation of the device for a long time. The valve has DVGW, WRAS and PZH certificates confirming its compliance with applicable standards and safety standards.