ASTM A890 4A Butterfly Valve

ASTM A890 4A Butterfly Valve is a specialized butterfly valve constructed from ASTM A890 Grade 4A (a 4% nickel duplex stainless steel). It employs a rotating disc to control fluid flow and is suitable for demanding applications that require resistance to corrosion and erosion in harsh environments.
 

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