ASTM A890 4A Check Valve

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An ASTM A890 4A Check Valve is a non-return valve made from ASTM A890 Grade 4A (a super duplex stainless steel), specifically designed for allowing one-directional fluid flow while preventing backflow, suitable for applications where moderate corrosion resistance and mechanical strength are required.

API 6D Dual Check Valve, 14 Inch, Class 600 LB, ASTM A890 4A

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Founded in 2013, Bosseal is a professional industrial valve manufacturer based in Suzhou, China. We specialize in the design and production of Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug Valves, and Piping Strainers. All our products are manufactured in strict compliance with international standards, including API, ASME, ISO, DIN, BS, and EN. With a strong focus on quality control and engineering capability, we are committed to providing reliable and high-performance valve solutions for global industrial applications.