Duplex Stainless Steel Butterfly Valve
12 products found
A duplex stainless steel butterfly valve is a high-performance, quarter-turn rotary valve featuring a body and disc cast or forged from premium duplex alloys (such as ASTM A890 4A or A182 F51). The dual austenitic-ferritic microstructure delivers exceptional mechanical strength and elite resistance to chloride pitting and stress corrosion cracking. Utilizing a concentric or eccentric offset disc design, it provides tight isolation or precise throttling over high-velocity flow paths while maintaining a lightweight, compact face-to-face profile. Conforming to standards like API 609 and ASME B16.34, duplex butterfly valves are critical specifications for marine offshore platforms, seawater desalination plants, and aggressive chemical processing loops. Offshore contractors and process engineers can secure superior mechanical strength and eliminate chloride stress cracking by importing duplex stainless steel butterfly valves directly from specialized manufacturers in China via our advanced B2B digital marketplace.
Bosseal Valves (Suzhou) Co., Ltd.
ASTM A890 4A Butterfly Valve, 28 IN, CL 150, API 609 Cat B
Model Number: 1862089
Bosseal Valves (Suzhou) Co., Ltd.
Duplex Stainless Steel Butterfly Valve, A890 5A, 10 IN, CL300
Model Number: 1862102
Bosseal Valves (Suzhou) Co., Ltd.
Duplex Stainless Steel Butterfly Valve, 5A, 18 IN, 300 LB
Model Number: 1862148
Bosseal Valves (Suzhou) Co., Ltd.
ASTM A890 4A Lug Butterfly Valve, 300 LB, 8 IN, API 609 B
Model Number: 1862227
Bosseal Valves (Suzhou) Co., Ltd.
ASTM A890 5A Wafer Butterfly Valve, CL 150, 16 IN, API 609
Model Number: 1862294
Bosseal Valves (Suzhou) Co., Ltd.
ASTM A890 5A Flanged Butterfly Valve, CL150, 32 IN, EN 593
Model Number: 1862385
Bosseal Valves (Suzhou) Co., Ltd.
Duplex Stainless Steel 5A Butterfly Valves, 300 LB, 12 IN
Model Number: 1862397
China JSC Valve Group Co., Ltd
Electric Actuated Butterfly Valve, 2-128 Inch, 150-900 LB
Model Number: JSC-231124-EBV-103
XIAMEN LANDEE INDUSTRIES CO., LTD.
ASTM A995 5A Double Offset Butterfly Valve, 8 Inch, 300 LB
XIAMEN LANDEE INDUSTRIES CO., LTD.
ASTM A995 5A Butterfly Valve, API 609, 6 Inch, CL300
XIAMEN LANDEE INDUSTRIES CO., LTD.
Duplex Stainless Steel Butterfly Valve, A995 5A, 6IN, CL300
XIAMEN LANDEE INDUSTRIES CO., LTD.
High Performance Butterfly Valve, WCB, A890 4A, DN50-DN3000
Model Number: LV-BTV-20250813-04
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