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ASTM A890 4A Butterfly Valve

52 products found

An ASTM A890 4A butterfly valve is a severe-service rotary valve cast from a specialized duplex stainless steel (Grade 4A/CD3MN) that features a perfectly balanced, 50/50 austenitic and ferritic crystalline structure. This unique dual-phase metallurgy combines the exceptional stress-corrosion cracking resistance of ferritic steel with the superior toughness and pitting resistance of austenitic stainless steel, yielding twice the mechanical yield strength of standard 316 grades. Purpose-built to endure highly aggressive process streams, this robust valve provides reliable, tight-shutoff isolation while resisting severe localized erosion and chloride-induced pitting in sour oil fields, chemical processing units, and seawater reverse osmosis systems. Through our streamlined B2B platform, global purchasing managers can easily access a vetted network of premium manufacturers in China to procure high-yield ASTM A890 4A duplex butterfly valves directly from the foundry source.

Showing 1-24 of 52 result(s)
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ASTM A890 4A Butterfly Valve, 4 Inch, 300 LB, Double Offset

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Butterfly Valve, 4 Inch, 300 LB, Double Offset

Model Number: 1862057

As a trusted fabricator of duplex stainless steel butterfly valves, we produce high-performance doub...
EN 593 Butterfly Valve, ASTM A890 4A, 36 IN, 300 LB, Wafer

Bosseal Valves (Suzhou) Co., Ltd.

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

Model Number: 1862071

We supply high-quality duplex stainless steel butterfly valves, manufactured from ASTM A890 4A mater...
ASTM A890 4A Butterfly Valve, EN 593, 2 IN, 150 LB, Lug

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Butterfly Valve, EN 593, 2 IN, 150 LB, Lug

Model Number: 1862075

We are a trusted supplier of duplex stainless steel butterfly valves from China, designed to meet EN...
RPTFE Seated Lug Butterfly Valve, A890 4A, 12 Inch, 150 LB

Bosseal Valves (Suzhou) Co., Ltd.

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

Model Number: 1862082

We are a premier manufacturer of ASTM A890 4A butterfly valves, designed to meet API 609 Category B ...
ASTM A890 4A Butterfly Valve, 28 IN, CL 150, API 609 Cat B

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Butterfly Valve, 28 IN, CL 150, API 609 Cat B

Model Number: 1862089

Our high-performance butterfly valve, compliant with API 609 Category B standards, features a double...
ASTM A890 4A Lug Butterfly Valve, RPTFE Seat, 4 IN, CL 300

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Lug Butterfly Valve, RPTFE Seat, 4 IN, CL 300

Model Number: 1862078

As a manufacturer of RPTFE seated butterfly valves, we produce high-performance valves designed to E...
17-4PH Stem Butterfly Valve, A890 4A, 18 IN, 300 LB, EN 593

Bosseal Valves (Suzhou) Co., Ltd.

17-4PH Stem Butterfly Valve, A890 4A, 18 IN, 300 LB, EN 593

Model Number: 1862106

As a trusted Chinese supplier, we offer high-performance butterfly valves made from ASTM A890 4A dup...
High Performance Butterfly Valve, ASTM A890 4A, 36 IN, 300 LB

Bosseal Valves (Suzhou) Co., Ltd.

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

Model Number: 1862113

As a leading manufacturer of high-performance butterfly valves, we offer models designed to meet API...
Double Flanged Butterfly Valve, A890 4A, 2-1/2 IN, 150 LB

Bosseal Valves (Suzhou) Co., Ltd.

Double Flanged Butterfly Valve, A890 4A, 2-1/2 IN, 150 LB

Model Number: 1862118

As a fabricator of double offset butterfly valves, we produce high-performance valves that meet API ...
API 609 Soft Seated Butterfly Valve, A890 4A, 14IN, CL150

Bosseal Valves (Suzhou) Co., Ltd.

API 609 Soft Seated Butterfly Valve, A890 4A, 14IN, CL150

Model Number: 1862125

We specialize in ASTM A890 4A double offset butterfly valves. Our high-performance valves meet API 6...
17-4PH Stem Butterfly Valve, ASTM A890 4A, 30 IN, 150 LB

Bosseal Valves (Suzhou) Co., Ltd.

17-4PH Stem Butterfly Valve, ASTM A890 4A, 30 IN, 150 LB

Model Number: 1862132

We provide duplex stainless steel butterfly valves designed to meet API 609 Category B and EN 593 st...
EN 593 Butterfly Valve, ASTM A890 4A, 8 Inch, Class 300 LB

Bosseal Valves (Suzhou) Co., Ltd.

EN 593 Butterfly Valve, ASTM A890 4A, 8 Inch, Class 300 LB

Model Number: 1862143

As a leading manufacturer of ASTM A890 4A butterfly valves, we produce high-quality solutions that m...
API 609 Double Flanged Butterfly Valve, 4A, 24 IN, CL 300

Bosseal Valves (Suzhou) Co., Ltd.

API 609 Double Flanged Butterfly Valve, 4A, 24 IN, CL 300

Model Number: 1862150

Our high-performance butterfly valve, designed to API 609 Category B standards, features a double ec...
API 609 Cat B Butterfly Valve, ASTM A890 4A, 42 IN, 300 LB

Bosseal Valves (Suzhou) Co., Ltd.

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

Model Number: 1862157

We are a factory in China producing high-performance double-flanged butterfly valves made from ASTM ...
ASTM A890 4A Wafer Type Butterfly Valve, 10 IN, CL 150 LB

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Wafer Type Butterfly Valve, 10 IN, CL 150 LB

Model Number: 1862165

We are a manufacturer from China specializing in wafer-type butterfly valves. Our 10-inch double off...
Double Eccentric Butterfly Valve, A890 4A, 26 Inch, 150 LB

Bosseal Valves (Suzhou) Co., Ltd.

Double Eccentric Butterfly Valve, A890 4A, 26 Inch, 150 LB

Model Number: 1862172

As a provider of API 609 Category B butterfly valves, we offer high-performance solutions designed t...
RPTFE Seated Butterfly Valve, ASTM A890 4A, 150 LB, 48 Inch

Bosseal Valves (Suzhou) Co., Ltd.

RPTFE Seated Butterfly Valve, ASTM A890 4A, 150 LB, 48 Inch

Model Number: 1862179

We are a trusted manufacturer of RPTFE seated butterfly valves, designed to meet EN 593 and API 609 ...
API 609 B Wafer Butterfly Valve, A890 4A, 300 LBS, 20 IN

Bosseal Valves (Suzhou) Co., Ltd.

API 609 B Wafer Butterfly Valve, A890 4A, 300 LBS, 20 IN

Model Number: 1862191

As a double offset wafer butterfly valve factory in China, we produce high-quality valves that meet ...
ASTM A890 4A Butterfly Valve, EN 593, API 609, CL300, 40 IN

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Butterfly Valve, EN 593, API 609, CL300, 40 IN

Model Number: 1862198

We fabricate high-performance double-offset butterfly valves designed to meet API 609 and EN 593 sta...
EN 593 Lug Butterfly Valve, API 609, 4A, 150 LBS, 2-1/2 IN

Bosseal Valves (Suzhou) Co., Ltd.

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

Model Number: 1862202

As a prominent provider of API 609 butterfly valves in China, we offer high-quality solutions built ...
ASTM A890 4A Double Offset Butterfly Valve, 14 Inch, CL 150 LB

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Double Offset Butterfly Valve, 14 Inch, CL 150 LB

Model Number: 1862209

We specialize in manufacturing 14-inch butterfly valves with RPTFE seating, designed to meet API 609...
EN 593 Soft Seated Butterfly Valve, A890 4A, CL 150, 30 IN

Bosseal Valves (Suzhou) Co., Ltd.

EN 593 Soft Seated Butterfly Valve, A890 4A, CL 150, 30 IN

Model Number: 1862216

As a trusted supplier of API 609 Category B butterfly valves, we provide high-quality valves designe...
ASTM A890 4A Lug Butterfly Valve, 300 LB, 8 IN, API 609 B

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Lug Butterfly Valve, 300 LB, 8 IN, API 609 B

Model Number: 1862227

We specialize in double-offset butterfly valves designed for high performance and reliability. Our v...
ASTM A890 4A Butterfly Valve, CL 300, 24 IN, EN 593, API 609

Bosseal Valves (Suzhou) Co., Ltd.

ASTM A890 4A Butterfly Valve, CL 300, 24 IN, EN 593, API 609

Model Number: 1862234

As a premier factory specializing in high-performance butterfly valves, we provide solutions that me...
Total 52 record(s), 24 record(s) per page