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The CU5MCuC alloy ball valve launched by ARAN VALVE has attracted widespread attention in marine duplex stainless steel fluid control systems, thanks to its outstanding corrosion resistance and adaptability. Designed for highly corrosive media such as seawater, the product offers a new solution for deep-sea oil and gas, marine engineering and other fields with its multi-specification parameters and stable performance.
Full Specification Coverage to Adapt to Complex Marine Working Conditions
As a core control component in marine duplex stainless steel systems, this ball valve achieves full coverage in terms of diameter and pressure class: ➽ The diameter range reaches DN15-DN1000 (1/2"-40"). ➽ The pressure class covers 150LB-2500LB (PN16-PN420), which is compatible with mainstream duplex stainless steel pipeline systems such as 2205 and 2507. ➽ The product adopts connection methods including flange (FF/RF/RTJ) and butt welding. It can operate stably within an extreme working temperature range of -196℃ to 425℃, whether in the high-pressure environment of deep-sea oil and gas extraction or the low-temperature working condition of LNG transportation. |  |
High-Performance Features to Strengthen the System Safety Line
The core advantages of the CU5MCuC alloy ball valve lie in three major technological breakthroughs:
➽ Zero-leakage sealing: It uses Devlon valve seat material, has passed ISO 5208 Class VI sealing certification and ISO 15848-1 leakage control standard, and achieves long-term sealing in seawater circulation.
➽ Low-maintenance design: The integrated anti-blowout valve stem and load-bearing sealing structure can withstand more than 10,000 opening and closing cycles, reducing the maintenance frequency by 60% compared with traditional valves.
➽ Safety redundancy: Equipped with anti-static design and SIL3 functional safety level, it meets the strict requirements of marine emergency shutdown systems and is designed in accordance with API 6D and API 607.
Outstanding Seawater Adaptability, Leading the Industry with Material Advantages
The unique composition of CU5MCuC alloy endows it with super strong seawater adaptability:
➽ It contains 19.5%-23.5% chromium to form a dense oxide protective film.
➽ 2.5%-3.5% molybdenum enhances pitting corrosion resistance.
➽ 1.5%-3.0% copper further improves chloride ion corrosion resistance.
Comparison tests show that after 3,000 hours of exposure in a simulated seawater environment with a chlorine content of 3.5%, the sealing performance retention rate of this material exceeds 95%, far higher than 65% of traditional bronze materials. Its critical temperature for chloride ion corrosion reaches above 65℃, which is 8% higher than that of 316L stainless steel, and its cost is only 1/3 of that of super austenitic stainless steel AL-6XN.
Application in Multiple Scenarios to Empower the Upgrade of Marine Engineering
At present, this product has been widely used in scenarios such as seawater injection systems for offshore oil and gas extraction, ballast water treatment of LNG carriers, and fluid control in seawater desalination plants. In a deep-sea oil and gas field project, when used in conjunction with duplex stainless steel pipelines, it extends the system maintenance cycle from 18 months to 36 months and reduces the comprehensive operating cost by 40%.