The increasing use of Additive Manufacturing (AM) in the energy sector requires not just advanced technology but also a well-connected system that links design, simulation, manufacturing, and validation effectively. Such integration is essential to ensure the production of reliable and durable components. In this scenario, Valland S.p.A, an experienced Original Equipment Manufacturer (OEM) specializing in industrial valves and pressure containment, presents a practical example involving the development of an innovative monoflange/monoblock valve using Laser Powder Bed Fusion (L-PBF) technology. The presentation highlights the importance of finite element (FE) structural analysis and manufacturing process simulations to optimize designs for AM. FE structural analyses were performed to validate the design and meet the rigorous standards of the energy industry. Simultaneously, L-PBF simulations were utilized to anticipate and manage production challenges such as residual stresses, part distortions, defects and overheating. Using its position as an OEM, Valland shows how incorporating advanced simulation methods into a connected AM ecosystem can significantly reduce development risks, shorten production times, and ensure the creation of high-quality components suitable for critical energy sector applications. The presentation also emphasizes Valland's active role in promoting collaboration among all the players in the supply chain to create a comprehensive and effective additive manufacturing environment in the energy industry.