Water-cooled Reactor Valve

{ "@context": "https://schema.org", "@type": "Article", "headline": "Water-Cooled SMR Reactors Expand Market Opportunities for Nuclear-Grade Valves", "author": { "@type": "Organization", "name": "GEKO Valve" }, "publisher": { "@type": "Organization", "name": "GEKO Valve" }, "datePublished": "2026-07-26", "description": "Water-cooled small modular reactors (SMR) accelerate commercialization. Explore rising demand, reliability requirements and market trends for high-performance nuclear-grade valves." } Water-Cooled SMR Reactors Expand Market Opportunities for Nuclear-Grade Valves   1.WL-100 SMR Plans Commercialization Within 3 to 5 Years The booming development of Small Modular Reactor (SMR) creates huge growth potential for the nuclear-grade valve industry. Shanghai Weilan Fulcrum Energy Technology has completed three financing rounds, including Angel Round, Angel Plus Round and Pre-A Round, raising a total of hundreds of millions of yuan.   This financing was jointly supported by well-known investment institutions, such as Inno Angel Fund, Tsinghua Shuimu Alumni Seed Fund, Photosynthesis Venture Capital, CDH Investments, Northern Light Venture Capital, Vertex Ventures and Borui Capital. The company’s core product, WL-100 “Weilan No.1”, is an integrated water-cooled SMR. It is confirmed to launch commercial operation within 3 to 5 years. Adopting the mature Pressurized Water Reactor (PWR) technology, this project drives the nuclear power valve sector to achieve growth in both sales volume and product value. 2.Higher Reliability Standards for Integrated Nuclear Systems 2.1 Stable Rigid Demand for Nuclear-Grade Valves The WL-100 SMR integrates the reactor core, steam generator and main pump into one single pressure vessel. Compared with traditional large nuclear reactors, it greatly reduces external pipelines and shortens on-site construction time to only 2 to 3 years. Even with high system integration, the demand for nuclear-grade valves remains strong. Instead of lowering standards, the reliability requirements for core valves have become stricter. 2.2 Strict Technical Requirements for SMR Valves Key nuclear components including main steam isolation valves, pressurizer safety valves, passive residual heat removal valves and high-precision regulating ball valves play decisive roles in the whole system. Any valve failure will cause shutdown of the entire modular reactor. The underground and subsea deployment modes of WL-100 also set more rigorous standards for valves: Excellent sealing performance and anti-micro leakage capability Strong corrosion resistance for long-term service Superior anti-hydrogen embrittlement performance     2.3 Large Market Scale for SMR Valves According to SMR equipment investment data, nuclear-grade valves account for around 6% of total investment in each nuclear island unit. China targets 5GW to 8GW installed capacity of small modular reactors by the end of the 15th Five-Year Plan. In the next five years, the domestic market scale of SMR supporting valves will reach billions of yuan. The market potential will be further expanded when SMRs are widely applied in AI data centers, industrial parks and island power supply projects. 3. Mature Water-Cooled Supply Chain Benefits Licensed Valve Manufacturers Weilan Fulcrum adopts proven water-cooled PWR technology, which has been operated and verified by 93% of nuclear units worldwide. The project shares complete regulatory procedures, forging and casting supply chains, as well as ASME and national nuclear safety certification systems. Manufacturers holding Class 1 and Class 2 nuclear valve licenses and having rich PWR supply experience can enter the SMR supporting market with low conversion costs. Main pump suppliers, pressure vessel manufacturers and instrumentation & control enterprises also join the collaborative supply chain. A recent research report from CITIC Securities regards light-water SMR nuclear equipment and nuclear-grade valves as a major investment direction for advanced nuclear energy. As SMR projects move from demonstration to large-scale application, the nuclear valve industry will embrace value revaluation, benefited from high qualification barriers, stable replacement cycles and strong replicability of SMR projects. 4. Capital and Application Scenarios Drive Prefabrication Trend The participation of top investment institutions reflects the market demand for power supply of AI computing centers, as well as the coordinated development of energy storage and zero-carbon industrial parks supported by the CATL ecosystem. Weilan Fulcrum is cooperating with central state-owned enterprises like Dongfang Electric. The project applies the advanced model of factory prefabrication plus on-site assembly. As key connecting parts of prefabricated skid-mounted modules, prefabricated, lightweight and plug-and-play nuclear valve assemblies have become the core competitive advantage for nuclear equipment suppliers. 5. Future Development Trend of SMR Nuclear Valves Industry insiders predict that WL-100 will finish safety assessment and prototype verification within 3 to 5 years. Once domestic water-cooled SMRs realize mass production, the demand for nuclear-grade valves will be released in three stages: Customized valve production for the first reactor unit Mass replication for standardized SMR models Long-term operation and maintenance services for in-service reactors Valve manufacturers with full nuclear qualifications will transform from traditional large reactor suppliers into core service providers for both SMR and AI power industries. Learn More About Our Nuclear-Grade Valves GEKO provides high-reliability nuclear-grade valves suitable for SMR and traditional nuclear power projects. Our products meet strict nuclear safety standards with outstanding sealing and corrosion resistance. View Our Nuclear-Grade Valves →