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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
Product Spotlights
JIS F7481 compliant marine wafer butterfly valve for reliable shipboard fluid control. Available DN50-DN600. Features corrosion-resistant materials (stainless steel disc, EPDM/NBR/PTFE seat), compact wafer design for easy installation, and optional electric/pneumatic actuation. Ensures tight sealing, low torque operation, and long service life in seawater, ballast, and cooling systems. ISO9001 certified manufacturing.
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 piping systems
Valve Type:
Wafer Butterfly Valve
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600NegotiableMOQ: 1 Unit
Standard
JIS F7481 Marine Standard
Application
Other, Marine piping systems
Valve Type
Wafer Butterfly Valve
Nominal Diameter (DN)
DN50, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600
Body Material
Ductile Iron, Cast Iron, Stainless Steel (optional)
Disc Material
Stainless Steel, Duplex Steel (optional)
Seat Material
EPDM, NBR, PTFE (optional)
Operation Type
Lever, Gear, Electric Actuator, Pneumatic Actuator (optional)
Face-to-Face Dimension
JIS F7481 standard
Pressure Rating
10K, 16K (customizable)
As a leading manufacturer specializing in industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our JIS F7481 Marine Wafer Butterfly Valve series. Engineered to meet the rigorous demands of marine and offshore applications, this valve series is a testament to our commitment to quality, reliability, and performance. With an annual export value reflecting our global reach, we understand the critical need for durable and compliant valves in shipbuilding and marine engineering. Our JIS F7481 valves are designed to provide a robust, leak-tight sealing solution for seawater, ballast, cooling water, and other shipboard piping systems, ensuring operational safety and efficiency.
Product Features & Technical Advantages:
- JIS F7481 Compliance: Manufactured in strict accordance with the Japanese Industrial Standard for marine butterfly valves, ensuring global acceptance and compatibility with international shipbuilding specifications.
- Comprehensive Size Range: Available in a wide spectrum of nominal diameters from DN50 to DN600, catering to various pipeline requirements on vessels and offshore platforms.
- Superior Corrosion Resistance: Key components like the disc and stem are typically crafted from stainless steel (SS304/SS316) or other corrosion-resistant alloys upon request, providing excellent longevity in harsh seawater environments.
- Reliable Sealing Performance: Features a variety of seat material options including EPDM, NBR, and PTFE. EPDM is suitable for seawater and chemicals, NBR for oil media, and PTFE for higher temperature or more corrosive fluids, ensuring a bubble-tight seal.
- Robust Construction: The valve body is made from high-grade ductile iron or cast iron, offering high strength and pressure resistance. The wafer design provides a compact and lightweight structure, simplifying installation between flanges.
- Versatile Actuation: Can be operated manually via lever or gearbox, or automated with electric or pneumatic actuators (available upon request), facilitating integration into modern control systems.
- Low Torque Operation: The streamlined disc design and high-quality bearings minimize operational torque, allowing for easy and smooth opening and closing, even in larger sizes.
- Bidirectional Sealing: Designed to seal effectively in both flow directions, enhancing its versatility and reliability in complex piping layouts.
Technical Specifications Table:
| Parameter | Specification / Option |
|---|---|
| Design Standard | JIS F7481 |
| Nominal Diameter (DN) | DN50, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600 |
| Pressure Rating | 10K, 16K (Standard), Higher ratings customizable |
| Body Material | Ductile Iron (GGG40), Cast Iron (FC200), Stainless Steel (CF8/CF8M) |
| Disc Material | Stainless Steel (SS304, SS316), Duplex Steel, Aluminum Bronze |
| Stem Material | Stainless Steel (SS304, SS316, 17-4PH) |
| Seat Material | EPDM, NBR, PTFE, Viton (FKM) - Selectable based on media |
| Operation Type | Lever Handle, Worm Gear Operator, Electric Actuator, Pneumatic Actuator |
| Temperature Range | Depends on seat material: EPDM (-20°C to 120°C), PTFE (-20°C to 180°C) |
| Applicable Media | Seawater, Fresh Water, Ballast Water, Oily Water, Air, Weak Corrosive Fluids |
Benefits for Our Clients:
- Enhanced System Reliability: The strict adherence to JIS F7481 standard guarantees performance that meets the high safety and quality benchmarks of the marine industry, reducing the risk of system failure.
- Reduced Maintenance & Lifecycle Cost: The use of corrosion-resistant materials and durable seat design minimizes wear and tear, leading to less frequent maintenance and longer service intervals.
- Simplified Procurement & Installation: The wafer design allows for quick installation between two pipeline flanges using bolts, saving significant time and labor costs compared to lug or flanged-end valves.
- Global Project Compatibility: As a product accepted in major markets worldwide (from North America and Europe to Asia and Africa), it simplifies the sourcing process for international shipyards and marine engineering firms.
- Customization Flexibility: We offer options in materials, actuation, and pressure ratings to tailor the valve precisely to your specific project requirements and operating conditions.
Backed by our ISO9001:2015 certified manufacturing processes, every JIS F7481 Marine Wafer Butterfly Valve from Shanghai Zhibang undergoes rigorous quality control, ensuring consistent performance and reliability. Our established presence in over a dozen global markets, supported by efficient logistics from major ports like Shanghai, Guangzhou, and Hong Kong, means we are equipped to fulfill your orders promptly and reliably. We invite shipbuilders, marine equipment suppliers, and engineering contractors to experience the robust performance and peace of mind our valves provide. Contact us today to discuss your project specifications or to request a detailed quotation.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a JIS F7481 valve compared to other standards like API or DIN?
A: The JIS F7481 standard is specifically developed for marine butterfly valves, focusing on dimensions, materials, and testing requirements suitable for shipboard environments. It is widely recognized and specified in Asian shipbuilding and by international classification societies. -
Q: Can this valve be used for freshwater systems on land?
A: Absolutely. While designed for marine use, its robust construction and material options make it suitable for a wide range of industrial applications involving water, air, and other non-aggressive fluids. -
Q: What is the difference between a Wafer and a Lug-style butterfly valve?
A: A wafer valve is installed by bolting it between two pipeline flanges. A lug-style valve has threaded inserts (lugs) allowing it to be bolted directly to each flange, which can support the pipeline weight. Wafer valves are more compact and cost-effective for most through-flange applications. -
Q: Do you provide valves with actuators?
A: Yes. We can supply the valves as manual units or fully assembled with electric or pneumatic actuators tailored to your control requirements. Actuator brands and specifications can be discussed based on your needs. -
Q: What seat material do you recommend for seawater service?
A: For standard seawater applications, EPDM (Ethylene Propylene Diene Monomer) is a common and reliable choice due to its excellent resistance to seawater, ozone, and weathering. -
Q: What is the typical delivery time for an order of DN300 valves?
A: Delivery time depends on the order quantity and specific configuration. For standard material configurations, we typically maintain stock for common sizes. Please contact us with your detailed requirements for an accurate lead time estimate. -
Q: Are your valves suitable for high-pressure applications?
A: The standard pressure ratings are 10K and 16K. For higher pressure requirements, we can offer customized designs with reinforced bodies and different sealing arrangements. Please share your specific pressure rating needs. -
Q: Do you provide documentation like test reports and certificates?
A: Yes. We can provide standard factory test reports. For specific certifications required by classification societies (like ABS, BV, DNV, etc.), this can be arranged upon request and may involve additional testing.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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