Georg Fischer launches smart air valve integrating operational reliability and hygiene in drinking water networks

The VAG DUOJET® @ON Smart Air Valve is the first solution to combine automated hygienic flushing with intelligent network monitoring in a single valve. Unveiled by Georg Fischer at the IFAT trade fair in Munich in May 2026. Integrated sensors and a configurable flushing function support compliance with hygiene requirements while significantly reducing operating costs. At the same time, the system enables continuous monitoring of network conditions, significantly contributing to a safe and sustainable drinking water supply.
As demands for operational safety and drinking water quality in modern drinking water networks continue to rise, the role of traditional valves is undergoing a fundamental shift. Today, addressing individual functions in isolation is no longer sufficient. What is required are integrated solutions that combine hygiene safety and network monitoring into a single, holistic approach. To meet this need, the VAG DUOJET® @ON Smart Air Valve was developed and introduced as a production-ready solution at the IFAT trade fair in Munich in May 2026. It marks the next step in the evolution of a proven valve into an enhanced system component.
The core approach is to combine hygiene protection and network monitoring in a single valve. The traditional venting and air-release function is combined with an automated, hygienically effective flushing strategy. This ensures that areas within the drinking water system that are prone to stagnation are regularly flushed, thereby maintaining drinking water quality at a defined level at all times.
The flushing function is designed to run automatically at user-defined intervals – for example, every three months – and can be adapted to the specific system conditions. This helps ensure compliance with the hygiene requirements of DVGW W392-2 without requiring on-site service personnel to intervene. The manual flushing cycles that were previously required are no longer necessary. The process is repeatable and significantly reduces operational effort for work assignments.
Timo Bugert, Product Manager for Global Engineering at VAG, explains from a technical perspective: “The automatic flushing system integrates seamlessly into the system and offers not only hygienic benefits but also advantages in terms of maintenance and network operation. This integration establishes a reliable foundation for consistently reliable hygiene safety throughout the entire network.”