HyNTS Operational Methodologies - Valve Performance Assessments

This project will identify how existing ball valve materials and designs within the NTS respond to hydrogen exposure, focusing on stress localisation. The project will generate learnings on the structural integrity of valves under hydrogen conditions through FEA, helping to determine their suitability for hydrogen service. The study will also uncover limitations in current leak detection and maintenance practices, evaluating whether existing diagnostic tools are effective for hydrogen or hydrogen-blend environments. Through physical testing using forming gas, it will provide empirical data on valve degradation and the performance of diagnostic techniques. Ultimately, the project will deliver strategic recommendations for updating NGT’s valve maintenance strategy, including guidance on materials, design modifications, and monitoring technologies, supporting a safer and more efficient transition to hydrogen infrastructure.