In hydrogen applications, valves are crucial for controlling pneumatic processes – especially so-called pilot valves, which control other components such as process or media valves via control air. These valves do not transport the hydrogen themselves, but are part of the higher-level control architecture.
A valve manifold is a combination of several such individual valves that are mounted together on a carrier plate or in a housing. All control and supply cables are bundled together instead of each valve being wired and connected individually. Modern valve manifolds also have integrated safety functions and digital diagnostic interfaces – ideal for use in complex hydrogen systems. This not only simplifies control, but also creates the basis for predictive servicing and greater operational reliability – a decisive advantage for use in complex hydrogen systems.
Due to its physical properties, hydrogen places special demands on all system components – including the pneumatic control system, which has an indirect effect on the process. Standard solutions quickly reach their limits in explosion-protected areas or with special functional safety requirements. EX or SIL-certified pilot valves in modular valve manifolds meet the requirements – for example when controlling hydrogen valves or actuators in the process. They ensure the reliable, compliant functioning of electrolyzers, H₂ storage tanks, and filling stations – and increase efficiency and system availability at the same time.
Whether centralized in the control cabinet or decentralized directly on the application – the choice of valve architecture not only influences safety, but also the space requirements and flexibility of the entire system. Valve manifolds can either be integrated as a compact unit in the control cabinet or placed in the immediate vicinity of the consumers. Centrally installed solutions facilitate servicing and protect against environmental influences, while decentralized installations enable shorter cable runs, faster response times, and more precise zone security. This makes the valve manifold a crucial link between the control tier and the process.
This blog article provides a deeper insight into which points speak in favor of centralized or decentralized control concepts.
Hydrogen automation is developing rapidly – and those who set the right course today will find themselves in an advantage position tomorrow. Modular valve manifolds enable you to secure the following advantages:
Whether for new projects or the modernization of existing systems – choosing the right control architecture is the key to a safe and economical future. Now is the time to lay the basis for long-term success.