High-temperature molten salt butterfly valves are the "critical equipment" in the heat storage and transmission systems of CSP plants — operating under extreme conditions including temperatures above 565°C, high pressure, strong corrosion, and frequent thermal cycling. The severity of these conditions has long made this key component dependent on imports. Domestic substitution efforts have been underway for many years, yet only a handful of products have proven capable of stable long-term operation on molten salt pipelines.
Recently, UNIVALS (SHANGHAI) CO., LTD. (hereinafter referred to as "UNIVALS") was officially approved as a governing member of the China Solar Thermal Alliance (hereinafter referred to as the "CSTA"). With nearly two decades of deep expertise in industrial valves and a dedicated focus on special valves for severe service conditions, the company brings extensive technical experience in high-temperature, high-pressure, and highly corrosive applications. Combined with comprehensive root cause analysis, research, and improvement achievements addressing the current pain points of high-temperature molten salt triple-offset butterfly valves in the industry, UNIVALS has delivered a robust solution for the domestic substitution of core equipment in the solar thermal industry.
Founded in 2003, UNIVALS is a professional valve manufacturer headquartered in Singapore with European-derived technology and a technical R&D center in Shanghai, China. The company's main products include ball valves, butterfly valves, skid-mounted units, and customized products for severe service conditions, with over 20 years of specialization in the industrial valve sector. UNIVALS (SHANGHAI) CO., LTD. was established in 2013 and is recognized as a national high-tech enterprise. With more than 80 employees and a high proportion of mid-to-senior level technical personnel, the company holds Special Equipment TS A1/A2 manufacturing qualifications. Its UNIVALS product line has obtained multiple domestic and international authoritative certifications, covering API 609, API 6D, API 607, ISO 15848, TA-LUFT, and SIL 3. Notably, the company's core triple-offset butterfly valve and ball valve products have fully passed ISO 15848 CO2 Class A certification, demonstrating industry-leading technical strength.