API 609 Cat B Butterfly Valve

An API 609 Category B Butterfly Valve is the butterfly valve that complies with the design and performance criteria specified in the API 609 Category B. Category B valves are offset type, meaning the shaft is offset from the disc, so they can handle higher differential pressures.

ASTM B148 C95800 Double Offset Butterfly Valve, 10 Inch, 150 LB

High Performance Butterfly Valve, Al-bronze, 42 IN, CL300 LB

ASTM A351 CF8M Double Offset Butterfly Valve, 8 Inch, 300 LB

Lever Operated Double Offset Butterfly Valve, 3 Inch, 150 LB

High Performance Wafer Butterfly Valve, API 609, CF8M, 10 IN, 300 LB

ASTM A995 5A Double Offset Butterfly Valve, API 609, 8 Inch

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.