ASTM A890 4A Ball Valve
11 products found
An ASTM A890 4A ball valve is a high-strength, quarter-turn rotary isolation valve cast from Grade 4A duplex stainless steel (UNS J92205 / CD3MN), engineered for severe chemical processing and high-pressure desalination lines. The 4A duplex microstructure consists of an approximate 50/50 balance of austenitic and ferritic grains, providing double the yield strength of standard 300-series stainless steels alongside elite resistance to chloride pitting, crevice corrosion, and stress corrosion cracking . Featuring a floating or trunnion-mounted design, the valve achieves a tight, bubble-tight mechanical shutoff with smooth operational torque. Offshore contractors and marine piping engineers can secure superior structural strength and eliminate chloride stress cracking by importing ASTM A890 4A ball valves directly from specialized manufacturers in China via our advanced B2B digital marketplace.
Baltic Valve Co., Ltd.
ASTM A890 4A Soft Seated Ball Valve, 8 Inch, Class 150, RF, API 6D
Baltic Valve Co., Ltd.
ASTM A890 4A Ball Valve, NPS 6 X 4 Inch, 150 LB, API 6D, RF
ZHEJIANG VERVO VALVE CO., LTD
Duplex Stainless Steel Ball Valve, API 6D, 4A, 3 IN, 150 LB
Model Number: BV-20240826-08
ZHEJIANG VERVO VALVE CO., LTD
ASTM A890 4A Ball Valve, API 6D, 6 IN, CL 150 LB, RF Flanged
Model Number: BV-20240826-09
Zhejiang Kosen Valve Co., Ltd.
ASTM A890 4A Trunnion Ball Valve, API 6D, 6 * 4 Inch, 150 LB
Model Number: KV-20250123-TMBV-02
Zhejiang Kosen Valve Co., Ltd.
ASTM A890 4A Ball Valve, API 6D, 4 * 3 IN, CL1500, Hard Seal
Model Number: KV-20250303-MSBV-01
Zhejiang Kosen Valve Co., Ltd.
ASTM A890 4A Trunnion Ball Valve, API 6D, 24 Inch, CL300, RF
Model Number: KV-20250520-TMBV-01
topper
ASTM A890 4A Ball Valve, API 6D, 24 Inch, CL300, ISO 15848-1
Model Number: VPSK-20250428-LEV-02
XIAMEN LANDEE INDUSTRIES CO., LTD.
ASTM A890 4A Trunnion Ball Valve, API 6D, 12 * 10 IN, CL150
Model Number: LD-20260527-BAV-01
XIAMEN LANDEE INDUSTRIES CO., LTD.
API 6D Trunnion Ball Valves, A890 4A, 12 * 10 IN, 150 LB, RF
Model Number: LV-BV-2026060102
Bosseal Valves (Suzhou) Co., Ltd.
ASTM A890 Gr.4A 3 Piece Trunnion Ball Valve, 8 Inch, 300 LB
Model Number: 181102004
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