In the core link of industrial fluid transmission, check valves serve as the "critical barrier" against medium backflow and ensure the safe operation of systems. Rooted in the technological forefront of the valve industry, OUWEI takes original R&D as its core driving force. After multiple rounds of working condition simulations and technological iterations, it has developed a full range of check valve products with high performance and adaptability, providing professional fluid control solutions for complex working conditions across various industries.
OUWEI's R&D team focuses on addressing key technical pain points of check valves and breaks through traditional design limitations:
• Innovatively adopting a "streamlined bionic flow channel" structure, optimized through CFD numerical simulation and actual machine testing, the flow resistance coefficient is reduced by more than 15% compared with industry standards, significantly improving fluid transmission efficiency.
• Independently developing the "dual-sealing surface wear-resistant coating technology," depositing a special alloy coating on the valve core sealing surface with a hardness of over HRC65, which enhances wear resistance by 3 times and effectively solves the problem of seal failure under high-pressure working conditions.
• For extreme environments, developing a "wide temperature range adaptive opening and closing mechanism" that can achieve precise opening and closing within an ultra-wide temperature range of -50℃~650℃, adapting to the transmission needs of special media such as high-temperature steam and low-temperature liquid nitrogen.
All core technologies hold independent intellectual property rights and have passed EU CE certification and API 6D industry standard certification, demonstrating strong original R&D capabilities.
Relying on core technological innovations, OUWEI check valves achieve precise adaptation to full working conditions:
• Petrochemical industry: Suitable for PN16~PN420 high-pressure working conditions, corrosion-resistant materials can resist the erosion of crude oil, acid-base media, and sour natural gas, preventing pump cavitation and pipeline impact caused by medium backflow in long-distance transmission pipelines.
• Power energy sector: For high-temperature and high-pressure steam systems, high-temperature resistant graphite sealing components are adopted to ensure stable sealing performance, which can be used in key links such as boiler feed water and steam turbine exhaust to guarantee the continuous operation of units.
• Water treatment and municipal pipe networks: Swing check valves are equipped with a slow-closing buffer mechanism to effectively weaken water hammer impact and avoid pipe network rupture. They are suitable for large-diameter pipelines of DN50~DN1200, meeting the needs of tap water transmission, sewage treatment reflux and other working conditions.
• Metallurgical and mining scenarios: Wear-resistant valve core and anti-clogging flow channel design can withstand the scouring of impurity-containing media such as mineral slurry and waste residue, ensuring stable operation in mineral processing slurry transmission and blast furnace cooling water circuits, and reducing maintenance frequency.
From original technological R&D to full working condition adaptation optimization, OUWEI has always taken "precise control, safety and reliability" as its core demands, empowering industrial fluid control with strong R&D capabilities. Choosing OUWEI check valves means not only selecting a high-quality valve product but also adopting a practically verified fluid control solution, ensuring the safety of every transmission link!
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