Concentric Marine Butterfly Valve Manufacturer & Supplier

Marine Butterfly Valve for Shipbuilding and Offshore Applications

The Concentric Marine Butterfly Valve, also known as a concentric Marine Butterfly Valve, is a widely used valve for flow control and isolation in shipbuilding and marine piping systems. As an experienced marine butterfly valve manufacturer and supplier, we provide reliable and cost-effective valve solutions for global shipyards, shipowners and marine engineering companies.

Our concentric butterfly valves are designed for seawater, freshwater, ballast water, fuel oil, lubricating oil and fire-fighting systems, offering stable performance and long service life in harsh marine environments.

Concentric (concentric) Marine Butterfly Valve Design

The valve features a concentric shaft and disc design, where the stem, disc and valve body share the same axis. This concentric structure ensures smooth opening and closing, reduced friction between disc and seat, and improved sealing durability.

Equipped with a soft resilient seat, the valve provides bi-directional tight shut-off, making it suitable for low- and medium-pressure marine applications.

Key Advantages of Our Marine Butterfly Valves

Compact wafer type marine butterfly valve design/Reliable bi-directional sealing performance

Low operating torque and smooth operation/Easy installation and maintenance for shipboard piping

Competitive cost for shipyard and fleet projects

These advantages make the concentric marine butterfly valve one of the most commonly selected valves in modern shipbuilding.

Materials for Marine Service

To meet different marine working conditions, we offer multiple material options:

Valve Body: Cast Iron, Ductile Iron, Carbon Steel, Stainless Steel

Valve Disc: Stainless Steel, Aluminum Bronze (C95400)

Valve Seat: NBR, EPDM, PTFE, Viton

Stem: Stainless Steel or Duplex Stainless Steel

All materials are selected to ensure corrosion resistance and long-term reliability in seawater and marine environments.

Standards and Marine Class Approval

Our concentric marine butterfly valves are manufactured in accordance with international standards:

API 609 / ISO 5752/EN 1092-1 / ANSI B16.5 / JIS Pressure Rating: PN10 / PN16 / Class 150

Marine class certification is available upon request, including ABS, DNV, CCS, LR and BV, to meet shipyard and shipowner requirements.

Typical Applications in Marine Systems

Seawater cooling systems/Ballast water systems/Fuel oil and lubricating oil systems

Fire-fighting and bilge systems/Marine pipeline isolation and control

Your Reliable Marine Butterfly Valve Supplier

With stable manufacturing capability, strict quality control and export experience, we supply high-quality concentric marine butterfly valves with complete technical documentation and reliable delivery schedules.

If you are looking for a marine butterfly valve supplier,concentric butterfly valve manufacturer, or marine butterfly valve for shipbuilding, please contact us for technical details and quotations.