ASTM A890 4A Check Valve

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.
 

About Us
Founded in 2013, Bosseal Valve is a professional valve manufacturing company in Suzhou, China. We mainly supply Industrial Ball Valves, Gate Valves, Globe Valves, Check Valves, Butterfly Valves, Plug VaIves, and Strainers designed and manufactured according to API, ASME, ISO, DIN, BS, EN standards.
 
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Building 2, NO.59, Songshan Road, SND, Suzhou, China