High-Performance Butterfly Valve for Marine and Shipbuilding Applications
The Double Offset Marine Butterfly Valve (also known as Double Eccentric Butterfly Valve) is designed for higher pressure, higher temperature and more demanding marine applications compared to concentric butterfly valves. As an experienced marine butterfly valve manufacturer, we supply double offset butterfly valves widely used in shipbuilding and offshore piping systems.
This valve type combines reliable sealing performance with reduced friction, making it an ideal solution for shipowners and shipyards requiring long service life and stable operation.
Double Offset (Double Eccentric) Design
The double offset design features:
The shaft is offset from the valve body centerline
The shaft is offset from the disc sealing surface
This structure allows the disc to disengage from the seat immediately during opening, significantly reducing wear and operating torque. As a result, the valve offers improved sealing performance and extended service life compared to concentric butterfly valves.
Key Advantages of Double Offset Marine Butterfly Valves
Reduced friction between disc and seat
Longer sealing service life
Lower operating torque
Suitable for higher pressure and temperature conditions
Reliable shut-off performance for marine service
These advantages make the double offset butterfly valve a preferred choice for critical marine systems.
Materials & Construction
To meet various marine operating conditions, we offer flexible material combinations:
Valve Body: Carbon Steel, Stainless Steel
Valve Disc: Stainless Steel, Aluminum Bronze (C95400)
Valve Seat: PTFE, Metal Seated (Stainless Steel / Alloy)
Stem: Stainless Steel, Duplex Stainless Steel
Metal seated double offset butterfly valves are suitable for higher temperature and pressure marine applications.
Standards & Marine Certification
Our double offset marine butterfly valves are manufactured according to international standards:
API 609 (Category B),ISO 5752,EN 1092-1 / ANSI B16.5 / JIS,Pressure Rating: PN16 / PN25 / Class 150 / Class 300
Marine class approval is available upon request, including ABS, DNV, CCS, LR and BV.
Typical Marine Applications
Seawater and cooling systems,Ballast water systems,Fuel oil and thermal oil systems,Fire-fighting and critical isolation systems,Marine pipelines requiring higher sealing performance
Why Choose Us as Your Double Offset Marine Butterfly Valve Supplier
Specialized manufacturer of marine butterfly valves
Proven experience with shipyard and marine projects
Reliable quality and competitive factory pricing
Complete technical documentation and certification support
Stable delivery for long-term cooperation
If you are searching for a double offset marine butterfly valve manufacturer or double eccentric butterfly valve supplier, please contact us for datasheets, drawings and quotations.
Post time: May-11-2026
