High-Quality Aluminum Bronze Butterfly Valve - Durable & Corrosion Resistant Suppliers, Manufacturer

Our Aluminum Bronze Butterfly Valve is designed for reliable flow control in demanding marine, seawater, offshore, and industrial applications. Manufactured with high-quality aluminum bronze materials, it offers excellent corrosion resistance, mechanical strength, and durability in harsh operating environments. The valve features a compact design, low operating torque, and smooth opening and closing performance, helping reduce installation and maintenance costs. Available in wafer, lug, and flanged configurations, it can be equipped with manual, pneumatic, or electric actuators to meet different system requirements. Suitable for seawater cooling systems, desalination plants, shipbuilding, fire protection, and industrial pipelines, this valve provides dependable long-term performance and stable flow control.

Product Description

Technical Specifications
Item Specification
ProductAluminum Bronze Butterfly Valve
Valve TypeWafer / Lug / Flanged
Size RangeDN50–DN1200 / 2"–48"
Pressure RatingPN10 / PN16 / Class 150
Body MaterialAluminum Bronze C95400 / C95800
Disc MaterialAluminum Bronze / Stainless Steel
Stem MaterialSS316 / 17-4PH / Monel
Seat MaterialEPDM / NBR / FKM / PTFE
Temperature-20°C to +120°C*
OperationLever / Gear / Pneumatic / Electric
Design StandardAPI 609 / EN 593
Face-to-FaceEN 558 / API 609
Flange StandardEN 1092-2 / ASME B16.5
Testing StandardAPI 598 / EN 12266
ApplicationsSeawater, Marine, Offshore, Desalination, Cooling Water, Industrial
Product Advantages
Excellent Corrosion Resistance

Aluminum bronze provides strong resistance to seawater, saltwater, and corrosive environments, making it ideal for marine and offshore applications.

High Mechanical Strength

The valve offers excellent strength and wear resistance, ensuring reliable performance under demanding operating conditions.

Long Service Life

High-quality aluminum bronze construction helps reduce corrosion-related damage and extends valve service life.

Low Operating Torque

The compact butterfly design requires relatively low operating torque, allowing easy manual or automated operation.

Wide Application Range

Suitable for seawater cooling, desalination plants, shipbuilding, offshore platforms, fire protection, and industrial pipelines.

Flexible Actuation Options

Available with lever, gearbox, pneumatic, or electric actuators to meet different control requirements.

Easy Installation and Maintenance

Compact construction and lightweight design simplify installation, inspection, replacement, and routine maintenance.

Multiple Material Options

C95400, C95500, and C95800/Nickel Aluminum Bronze materials can be selected according to pressure, temperature, and corrosion conditions.

In terms of operation, these valves provide quick opening and closing, typically achieved with a 90-degree rotation of the handle or actuator. This rapid response makes them suitable for applications requiring frequent on-off control. The streamlined disc design minimizes flow resistance, ensuring low pressure drop and high flow capacity, which improves system efficiency and reduces energy consumption.
Dimensions in (mm)
DN50 – DN300
Size A B C2 D E F KxK Top PCD Plate Hole N-Dia
DN501407010541903011x11704-θ9
DN651527611744903011x11704-θ9
DN801599113044903011x11704-θ9
DN10017810216251903014x14704-θ9
DN12519111918754903014x14704-θ9
DN15020313321654903017x17704-θ11
DN200241170271641253017x171024-θ11
DN250273210330641253022x221024-θ11
DN300308243376761253022x221024-θ11
DN350 – DN600
Size A B C2 D E F K SxS/d Top Plate PCD
DN350413267451508052547022x22125
DN400451309451759058552527x27140
DN4504673184517510965058527x27140
DN5005253504517512772065036x36140
DN6006074104521015485077036x36165
Dimensional Drawing
Large Diameter Dimensions (PN10 & PN16)
PN10 Dimensions
SizeABCLфDфKNxфd4xMфEфFa°GHOPфRWeight (Kg)
DN70078458116316989584024xф31/74169515355146146228400361
DN800832655188195101595024xф34/847794.715355146146228400444
DN9009747452032111115105024xф344xM30943864.712.857377170170243450660
DN100010548032162241230116024xф374xM331049965.712.857377170170243450830
PN16 Dimensions
SizeABCLфDфKNxфd4xMфEфFa°GHOPфRWeight (Kg)
DN70078458116316991084020xф374xM3374169515355146146228400396
DN800926655188195102595020xф404xM36847794.715377170170243450573
DN9009747452032111125105024xф404xM36943864.712.857377170170243450690
DN100011108032162241255117024xф434xM391049965.712.8574761802503024501025
PN10 PN16 Dimensional Diagram
Product Overview & Video Demonstration
Aluminum Bronze butterfly valve
Frequently Asked Questions (FAQ)
What makes Aluminum Bronze ideal for seawater and marine environments?
Aluminum bronze (such as C95400 and C95800) forms a tough, adherent copper oxide film that regenerates quickly when damaged. This protective layer delivers exceptional resistance against pitting, crevice corrosion, and cavitation in aggressive saline and brackish environments.
Which end-connection types are available for this butterfly valve?
The valve is available in wafer, lug, and double-flanged configurations, adhering to standard dimensions such as API 609, EN 558, ASME B16.5, and EN 1092-2 across nominal sizes from DN50 up to DN1200.
How do I choose the correct seat material (EPDM, NBR, FKM, PTFE)?
Selection depends on the operating medium and temperature: EPDM is best suited for general seawater, cooling water, and mild chemicals; NBR is ideal for oily seawater and hydrocarbon traces; FKM offers elevated thermal and chemical endurance; and PTFE provides maximum chemical resistance.
Can these butterfly valves be operated automatically?
Yes. In addition to manual hand lever and worm gear operators, the valves feature standardized top flanges compatible with pneumatic (double-acting or spring-return) and multi-turn/quarter-turn electric actuators for automated process loops.
What pressure testing and design standards are followed during manufacture?
The valves are engineered according to API 609 and EN 593 design specifications, and rigorously tested for shell strength and seat shut-off leakage in accordance with API 598 and EN 12266 standards.

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