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 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.

ASTM A890 4A Butterfly Valve

EN 593 Lug Butterfly Valves, API 609, A890 4A, CL300, 42 IN

Soft Seated Butterfly Valves, CL150, 10 IN, EN 593, A890 4A

ASTM A890 4A Wafer Butterfly Valve, 32IN, CL300, API 609

EN 593 ASTM A890 4A Lugged Butterfly Valves, CL 300, 8 IN

Monel K500 Stem Butterfly Valve, 2 IN, 150 LB, ASTM A890 4A

API 609 Lug Butterfly Valve, ASTM A890 4A, 300 LB, 42 IN

ASTM A890 4A Lug Butterfly Valve, 30IN, CL150, API 609

EN 593 Butterfly Valve, ASTM A890 4A, 36 IN, 300 LB, Wafer

Double Offset Butterfly Valve, A890 4A, 150 LB, 16 Inch

RPTFE Seated Lug Butterfly Valve, A890 4A, 12 Inch, 150 LB

High Performance Butterfly Valve, ASTM A890 4A, 36 IN, 300 LB

EN 593 Lug Butterfly Valve, API 609, 4A, 150 LBS, 2-1/2 IN