<p>Valves and their internal components operate under continuous friction, wear, and tribological loading during service. These effects become more complex and potentially more severe when valves operate in high-pressure hydrogen environments. This paper presents an analytical review and conceptual framework that integrates tribological behavior with hydrogen embrittlement mechanisms in valve internal components. The study examines contact conditions in valve internals, including seat–disc interfaces and other sliding surfaces. Particular attention is given to contact stress estimation, asperity-level interactions, and realistic friction and wear modeling. Tribological models such as contact mechanics and wear relationships are discussed alongside hydrogen transport and embrittlement mechanisms. The interaction between these processes is analyzed to highlight how hydrogen exposure may modify tribological parameters such as friction coefficient, effective hardness, and crack propagation resistance. The paper further discusses mitigation strategies including material selection, hardfacing alloys, advanced coatings, and surface finishing techniques that improve resistance to hydrogen-assisted tribological degradation. Design considerations aimed at reducing excessive contact stress, minimizing sharp geometric stress concentrators, and optimizing valve seating forces are also addressed. Additionally, lubrication strategies suitable for hydrogen service are briefly examined. Finally, a conceptual quantitative framework is proposed to estimate the relative severity of tribological degradation in valve internals operating under high-pressure hydrogen conditions.</p>