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Home > Industrial Equipment & Components > Valve > Butterfly Valve > JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 thumbnail-3

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 thumbnail-4

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 thumbnail-5

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 photo-1

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 photo-2

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 photo-3

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 photo-4

JIS F7481 Marine Wafer Butterfly Valve Cast Iron Body EPDM Seal DN50-DN600 photo-5

Product Spotlights

JIS F7481 compliant marine wafer butterfly valve with cast iron body and EPDM seal for seawater applications. Available in DN50 to DN600 sizes, offering compact wafer design for space savings, reliable sealing, and operational flexibility (manual/gear/actuator). ISO9001 certified manufacturing ensures quality for global marine projects.

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

Key Specifications

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Standard:

JIS F7481 Marine Standard

Application:

Other, Marine and Shipboard Systems

Material:

Cast Iron Body with EPDM Seal

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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
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Standard JIS F7481 Marine Standard

Application Other, Marine and Shipboard Systems

Material Cast Iron Body with EPDM Seal

Size Range DN50 to DN600

Design Type Wafer Type

Sealing Material EPDM Rubber

Connection Wafer (Between Flanges)

Operation Manual, Gear, or Actuator Optional

Pressure Rating Available upon request

Temperature Range Customizable based on seal

As a professional manufacturer specializing in industrial valves, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our JIS F7481 Marine Wafer Butterfly Valve. Engineered with a robust cast iron body and a reliable EPDM seal, this valve is specifically designed to meet the rigorous demands of marine applications. With a size range from DN50 to DN600, it offers a versatile and efficient solution for fluid control on ships and offshore platforms. Our commitment to quality, backed by ISO9001 certification, ensures that every valve delivers consistent performance and durability in challenging seawater environments.

Key Features & Technical Specifications:

Marine-Grade Construction: Compliant with JIS F7481 standard, ensuring suitability for shipboard use, including seawater, ballast, and cooling systems.
Durable Material Combination: The cast iron body provides strength and corrosion resistance, while the EPDM (Ethylene Propylene Diene Monomer) seal offers excellent resilience against seawater, oils, and a wide temperature range.
Wafer Design Efficiency: The wafer-type design allows for installation between two pipeline flanges, saving space and weight compared to lug-type valves, which is critical in marine engineering.
Broad Size Availability: Available in nominal diameters from DN50 (approx. 2 inches) to DN600 (approx. 24 inches), catering to various pipeline requirements onboard.
Operational Flexibility: The valve can be operated manually via a handle, or equipped with gear operators or pneumatic/electric actuators for remote control, adaptable to different system designs.
Excellent Sealing Performance: The EPDM seal ensures tight shut-off, low leakage, and reliable service in marine conditions, contributing to system safety and efficiency.

Detailed Parameters (Common Specifications):

Parameter	Description / Typical Value
Standard	JIS F7481 (Japanese Industrial Standard for Marine Valves)
Body Material	Cast Iron
Seal/Disc Material	EPDM Rubber
Design Type	Wafer (Double Flange)
Size Range (DN)	50, 80, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600
Connection	Fits between ANSI, JIS, or DIN standard flanges
Operation Type	Manual Handle (Standard), Gear Box or Actuator (Optional)
Pressure Rating	Customizable (e.g., 10 bar, 16 bar) - Please inquire
Primary Application	Marine & Shipbuilding: Seawater, Ballast, Cooling, Fuel, General Service

Benefits for Our Clients:

Reliability in Critical Systems: The JIS F7481 compliance and robust build ensure the valve performs reliably in vital marine systems, minimizing downtime and maintenance.
Space and Weight Savings: The wafer design is compact, reducing the overall footprint and weight of the piping system, which is a significant advantage in ship design.
Cost-Effectiveness: Butterfly valves generally offer a lower cost compared to other valve types for large diameters, and our efficient manufacturing provides competitive pricing.
Easy Installation & Maintenance: The simple wafer installation between flanges and the accessible design facilitate easier installation and potential seal replacement.
Global Supply Capability: With annual exports valued between US$1 Million and US$1.5 Million and shipment ports in Shanghai, Guangzhou, Hongkong, and Beijing, we reliably serve clients across North America, South America, Europe, Asia, Africa, and Oceania.

Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, has built a strong reputation as a trusted valve supplier. Our ISO9001 certified quality management system underpins every stage of production, from material selection to final testing. With extensive experience exporting to diverse markets worldwide, we understand the specific requirements of marine projects. This JIS F7481 Marine Wafer Butterfly Valve embodies our dedication to providing durable, specification-compliant, and value-driven products. For your next marine or offshore project requiring dependable fluid control from DN50 to DN600, contact us to discuss your specifications and benefit from our manufacturing expertise and global logistics support.

Frequently Asked Questions (FAQ):

What does "JIS F7481" mean for this valve?
JIS F7481 is a Japanese Industrial Standard specifically for marine valves. It defines requirements for materials, design, testing, and performance to ensure valves are suitable for use in shipboard seawater and other marine systems, offering a recognized benchmark for quality.
Why is EPDM seal material chosen for marine applications?
EPDM rubber is known for its excellent resistance to seawater, weathering, ozone, and a broad range of temperatures. It maintains elasticity and sealing properties in marine environments, making it a preferred choice for sealing in butterfly valves used on ships.
What is the difference between a Wafer and a Lug butterfly valve?
A wafer valve is designed to be installed between two flanges using bolts that pass through both flanges and the valve. A lug valve has threaded lugs (ears) that allow it to be bolted directly to each flange independently. Wafer valves are typically more compact and lighter.
Can this valve be used with actuators for automated control?
Yes. While supplied with a manual handle as standard, the valve design is compatible with the addition of gear operators, pneumatic actuators, or electric actuators. This allows for integration into automated control systems onboard.
What pressure ratings are available for these valves?
The pressure rating (e.g., PN10, PN16) can be customized based on your project requirements. Please provide your specific pressure class needs during inquiry so we can configure the valve accordingly.
Are other seal materials available besides EPDM?
EPDM is the standard seal material for this marine valve line due to its suitability. However, for specific media or temperature conditions, other elastomers like NBR or PTFE might be considered as optional alternatives upon request.
What flange standards does this wafer valve fit?
The valve is designed to fit between flanges conforming to common standards such as ANSI, JIS, or DIN. The exact flange face dimensions (e.g., raised face, flat face) and bolt hole patterns should be confirmed based on your piping specifications.
Do you provide testing certificates for marine valves?
As an ISO9001 certified manufacturer, we conduct rigorous quality checks. Specific testing reports or certificates (like pressure test reports) can be provided upon request to meet project or regulatory documentation requirements.