In critical fluid transmission scenarios such as oil and gas long-distance pipelines, urban gas pipe networks, and chemical high-pressure equipment, valve reliability directly determines the safety and efficiency of the entire piping system. As a seasoned brand with over 30 years of experience in the industry, OUWEI has always adhered to the core principle of "Technological Deepening and Quality Foundation", elevating the sealing performance, structural strength, and long-term durability of fully welded ball valves to new heights, and establishing itself as a trusted "Fluid Safety Guardian" in the industrial sector.
With more than 30 years of technological accumulation, OUWEI deeply understands the core needs of different working conditions. Targeting harsh environments such as high pressure, corrosion, and cryogenic temperatures, the brand adheres to the design philosophy of "Structure as the Key to Success, Sealing as the King". It adopts an integrated plate forging and welding process, with the valve body material homologous to the pipeline, fundamentally avoiding the risks of uneven stress and deformation. Even in extreme conditions such as earthquakes and ground overloads, it can maintain structural stability and eliminate external leakage. Its sealing system has undergone ten thousand times of working condition verification — the RPTFE sealing ring containing 25% carbon, combined with a disc spring structure, achieves zero-leakage sealing under rated conditions of -60℃~200℃ and PN16~PN250, perfectly adapting to the transmission needs of high-risk fluids such as sour media and high-temperature steam, just like installing a "safety lock" for the pipeline.
From component processing to finished product delivery, OUWEI's craftsmanship runs through the entire process. The ball is polished under the full tracking of computer detectors, reaching the industry's top-level precision. Equipped with a self-lubricating valve seat design, it not only operates smoothly without jamming but also minimizes wear, with a service life of over 15 years — far exceeding the industry average. The products fully comply with international standards such as API 6D and ISO 15848, with 100% ultrasonic flaw detection for welds. The valve body length and stem height can be flexibly adjusted according to pipeline design, and the driving methods include manual, gear, electric, and hydraulic options, adapting to full-specification pipeline needs of DN25~DN1400. Whether it is urban gas buried pipe networks or petrochemical high-pressure equipment, it can accurately match the working conditions.
After more than 30 years of unremitting efforts, OUWEI has witnessed the development and changes of China's industrial fluid control. It has also broken the pattern of relying on imported high-end valves with quality comparable to imported brands, shorter delivery cycles, and higher customization capabilities. Today, OUWEI fully welded ball valves are exported to various regions such as Asia, Europe, North and South America, serving numerous major domestic and foreign engineering projects. With the three core advantages of "lightweight design to save construction costs, modular adaptation to improve installation efficiency, and localized services to ensure after-sales response", it has become a benchmark brand of domestic fully welded ball valves.
Thirty years of valve making, original aspiration reflects craftsmanship. OUWEI has always responded to industry needs with technological innovation and guarded working condition safety with reliable quality. Choosing OUWEI fully welded ball valves means choosing precise adaptation endorsed by 30 years of technological accumulation, stable and reliable long-term operation, and economic efficiency throughout the entire life cycle.
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