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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 thumbnail-3

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 thumbnail-4

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 thumbnail-5

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 photo-1

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 photo-2

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 photo-3

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 photo-4

JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600 photo-5

Product Spotlights

JIS F7481 compliant marine wafer butterfly valve for reliable seawater, ballast, and cooling system control. Features corrosion-resistant construction with epoxy-coated or stainless steel body, EPDM/NBR seats for tight sealing, and a compact wafer design to save weight and space onboard. Available in DN50 to DN600 sizes with manual, gear, or actuated operation options. ISO 9001 certified manufacturer ensures quality and global supply chain support.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Standard:

JIS F7481

Application:

Other, Marine & Offshore Piping Systems

Type:

Wafer Butterfly Valve

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
Company Profile
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Standard JIS F7481

Application Other, Marine & Offshore Piping Systems

Type Wafer Butterfly Valve

Size Range (DN) DN50, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600

Body Material Ductile Iron, Cast Steel, Stainless Steel, etc.

Seat Material EPDM, NBR, PTFE, etc.

Disc Material Ductile Iron with Nylon Coating, Stainless Steel

Stem Material Stainless Steel

Operation Lever, Gear, Electric Actuator, Pneumatic Actuator

Connection Wafer (Lug type optional)

As a professional manufacturer with ISO 9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance fluid control solutions for demanding marine environments. Our JIS F7481 Marine Wafer Butterfly Valves are engineered to meet the rigorous standards of shipbuilding and offshore industries, offering reliable shut-off and flow control in critical seawater, ballast, firefighting, and cooling systems. With an annual export value exceeding US$1 million and a strong presence across global markets from North America to Southeast Asia, we understand the need for durable, corrosion-resistant, and maintenance-friendly valves that ensure operational safety and efficiency on board.

Key Features and Technical Advantages:

JIS F7481 Compliance: Specifically designed and manufactured to comply with the Japanese Industrial Standard for marine butterfly valves, ensuring compatibility and reliability in marine applications worldwide.
Robust Construction for Harsh Environments: The valve body is typically crafted from ductile iron with epoxy coating or stainless steel (CF8/CF8M) to withstand corrosive seawater and atmospheric conditions. The disc is often coated with nylon or made from stainless steel to prevent marine growth and reduce friction.
Superior Sealing Performance: Utilizes high-quality elastomer seats like EPDM or NBR, which offer excellent resistance to seawater, ozone, and a wide temperature range, ensuring a bubble-tight seal and long service life.
Compact & Lightweight Wafer Design: The wafer-style valve fits between two pipe flanges, secured by bolts. This design saves space and reduces weight compared to lug-type or flanged valves, which is a critical advantage in ship design where weight and space optimization are paramount.
Low Torque Operation & Easy Maintenance: The streamlined disc design and low-friction seat material contribute to low operating torque. This allows for smooth operation with a simple lever, gearbox, or actuator. The simple design also facilitates easy inspection and seat replacement with minimal downtime.
Versatile Actuation Options: Available with manual lever handles, gear operators for larger sizes (typically DN200 and above), or can be fitted with electric/pneumatic actuators for remote and automated control systems.

Technical Specifications Table:

Parameter	Specification / Option
Design Standard	JIS F7481
Face-to-Face Dimension	Per JIS B 2002 / JIS F7481
Pressure Rating	10K / 16K (Standard), 20K (Available)
Temperature Range	-10°C to +120°C (with EPDM seat)
Test Standards	Shell Test, Seat Leakage Test per JIS
Flange Standard	JIS B 2210 / 2212 / 2214 (10K, 16K, 20K)
Paint / Coating	Epoxy Coating (Standard), Special marine paint optional

Benefits for Your Marine Projects:

Enhanced System Reliability: Our valves are built to perform consistently under the vibration, shock, and corrosive conditions typical of marine operations, reducing the risk of system failure.
Cost-Effective Lifecycle: The durable materials and design minimize maintenance requirements and replacement frequency, leading to lower total cost of ownership over the valve's lifespan.
Simplified Installation & Inventory: The standardized dimensions per JIS F7481 ensure easy integration into existing or new piping systems designed to Japanese or similar standards. The wide size range (DN50 to DN600) allows for sourcing multiple valve requirements from a single, reliable supplier.
Global Supply Chain Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient delivery to shipyards and marine equipment distributors worldwide, supporting just-in-time production schedules.

Backed by our ISO 9001 certified quality management system and nearly a decade of manufacturing expertise since 2016, Shanghai Zhibang's JIS F7481 Marine Butterfly Valves represent a dependable choice for shipbuilders, repair yards, and marine system integrators. Our products have been successfully supplied to diverse markets including North America, Europe, Asia, and Africa, proving their adaptability and performance. We invite you to leverage our experience and reliable supply chain for your next project. Contact us today to discuss your specific requirements for DN50 to DN600 valves and request a detailed quotation.

Frequently Asked Questions (FAQ):

Q: What is the main advantage of a wafer-type butterfly valve over a lug-type for marine use?
A: The wafer design is more compact and lighter, which is crucial for shipboard applications where saving weight and space directly impacts vessel performance and payload capacity. It is installed between two flanges using through-bolts.
Q: Can this valve be used with actuators for automated control systems?
A: Yes, absolutely. Our JIS F7481 valves are designed with a standardized mounting interface that is compatible with various electric and pneumatic actuators. We can supply the valve as a manual unit or as a complete actuated package based on your requirements.
Q: Are these valves suitable for both freshwater and seawater applications?
A: Yes, they are. The material combinations, particularly with EPDM or NBR seats and corrosion-resistant body/disc materials, make them suitable for handling seawater, ballast water, freshwater, and other non-aggressive fluids.
Q: What pressure classes are available for these valves?
A: Our standard offering includes valves rated for 10K and 16K pressure classes as per JIS standards. Valves with a 20K rating are also available upon request for higher-pressure services.
Q: Do you provide certificates with the valves?
A: As an ISO 9001 certified manufacturer, we provide a standard material test certificate (MTC) and a certificate of compliance with our shipment. Specific test reports or third-party inspection can be arranged as needed.
Q: What is the typical delivery time for an order of DN300 valves?
A: Delivery time depends on the order quantity and specific configuration (material, actuator, etc.). For standard configurations, we generally maintain stock for common sizes or have short production lead times. Please contact us with your detailed inquiry for an accurate schedule.
Q: Can you customize the valve coating or paint color?
A: Yes, customization is possible. While our standard finish is a protective epoxy coating, we can apply specific marine-grade paint systems or colors as per client specifications or shipyard standards.
Q: How do I determine the correct seat material (EPDM vs. NBR vs. PTFE) for my application?
A: The choice depends on the fluid media and temperature. EPDM is excellent for seawater and has a wide temperature range. NBR is suitable for oils and fuels. PTFE offers superior chemical resistance and a higher temperature limit. Our technical team can assist you in selecting the optimal material.