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 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 Check Valve

Dual Plate Check Valve, ASTM A890 4A, API 6D, 150 LB, 6 Inch

ASTM A890 4A Dual Plate Check Valve, 24 IN, CL 150, API 594

6 Inch Dual Check Valve, ASTM A890 4A, 300 LB, API 594, 6D

Duplex Stainless Steel Non-Return Valve, 24 IN, CL 300

ASTM A890 4A Non-Return Valve, API 594, 2 Inch, 600 LB

2 Inch Dual Check Valve, ASTM A890 4A, 900 LB, API 594, 6D

Duplex Stainless Steel Non-Return Valve, 14 IN, CL900, 4A

Spring Loaded Dual Check Valve, 2 IN, 1500 LB, ASTM A890 4A

ASTM A890 4A Check Valve, 14 Inch, CL 1500 LB, API 594

Spring Loaded Dual Check Valve, 2 IN, 2500 LB, ASTM A890 4A

Flanged Check Valve, A890 4A, 14 IN, 2500 LB, API 6D, 594

API 594 Dual Check Valve, 48 Inch, 150 LB, ASTM A890 4A