Safety in hydrogen applications is something that cannot be comprised on. Two factors are especially relevant here: functional safety and explosion prevention and protection. The SIL (Safety Integrity Level) level of a valve terminal shows how reliably it masters critical functions. The classification into explosion zones is critical for determining which protective measures are required for the relevant ambient conditions. Certifications for explosion prevention and protection, such as IECEx or regional directives such as ATEX, CCC or others, also help with the selection of components. A valve terminal that meets the application-specific requirements creates planning security and prevents delays in certification or operation.

1. Safety and standards

Safety in hydrogen applications is something that cannot be comprised on. Two factors are especially relevant here: functional safety and explosion prevention and protection. The SIL (Safety Integrity Level) level of a valve terminal shows how reliably it masters critical functions. The classification into explosion zones is critical for determining which protective measures are required for the relevant ambient conditions. Certifications for explosion prevention and protection, such as IECEx or regional directives such as ATEX, CCC or others, also help with the selection of components. A valve terminal that meets the application-specific requirements creates planning security and prevents delays in certification or operation.

2. System integration and communication

The real benefits of a valve terminal only become clear when it communicates smoothly with the existing controller. Interfaces such as PROFINET or EtherCAT® ensure that the system can be seamlessly integrated. At the same time, the option of remote I/O integration offers more flexibility, especially in spread-out systems or when centralised and decentralised control have to be combined. It is crucial that your valve terminal has the right interfaces to support your architecture today and in the future.

3. Integration of proportional pneumatic valves

Proportional pneumatic valves are indispensable for applications that require precise pressure or flow control. When they can be integrated into a valve terminal, that reduces the space required and simplifies installation. In addition, centralised control via the valve terminal increases the reproducibility of the results and facilitates maintenance, as fewer individual components need to be monitored and replaced. Operators thus benefit from a compact, efficient solution that supports both technical precision and long-term operating safety.

4. Temperature

The conditions along the hydrogen value chain are often extreme, from sub-zero temperatures outdoors to high temperatures in compression processes, and the requirements are varied. The valve terminal must be designed to work reliably under the specific conditions of the application. A careful choice prevents failures and creates the basis for a safe and stable operation.

5. Diagnostics and monitoring

Valve terminals can be much more than just switching components. Thanks to integrated functions for diagnostics and monitoring, leakages, deviations or wear can be detected at an early stage. This provides operators with greater transparency about the system status and processes and allows them to take action before a failure occurs. This ensures high plant and system availability and lowers maintenance costs.

Your next step to the right solution

The selection of the right valve terminal is crucial for the reliability, safety and efficiency of hydrogen applications. There is no standard solution – each application has its own requirements in terms of safety, temperature resistance, integration and monitoring. Taking these criteria into account reduces risks, avoids failures and creates the basis for future-proof automation.