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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 valves from DN50 to DN600. Compact wafer design saves space/weight onboard. Corrosion-resistant materials (stainless steel disc, EPDM/NBR/VITON seats) ensure durability in seawater/oil service. Multiple actuation options (lever, gear, electric, pneumatic). ISO9001 certified manufacturer with global export experience. Ideal for reliable flow control in shipbuilding and offshore applications.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
JIS F7481
Application:
Other, Marine piping systems
Type:
Wafer Style 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
-
JIS F7481 Marine Wafer Butterfly Valve DN50 DN100 DN150 DN200 DN250 DN300 DN350 DN400 DN450 DN500 DN600NegotiableMOQ: 1 Unit
Standard
JIS F7481
Application
Other, Marine piping systems
Type
Wafer Style Butterfly Valve
Connection Type
Wafer
Body Material
Cast Iron, Ductile Iron, Stainless Steel (Customizable)
Disc Material
Stainless Steel (Optional)
Seat Material
EPDM, NBR, VITON (Available upon request)
Pressure Rating
10K / 16K (JIS Standard)
Size Range
DN50 to DN600
Operation
Lever, Gear, Electric Actuator, Pneumatic Actuator (Optional)
As a professional manufacturer with a solid track record since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering 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 applications, offering reliable shut-off and flow control for seawater, ballast, fuel oil, and other shipboard services. With an annual export value reflecting our global reach across key markets from North America to Southeast Asia, we understand the critical need for durability, corrosion resistance, and operational safety in maritime operations.
This series of valves is designed for direct installation between pipe flanges, providing a compact and lightweight solution that saves space and weight—a crucial advantage onboard vessels. The robust construction ensures long service life even under harsh saline conditions.
Key Features & Technical Specifications:
- JIS F7481 Compliance: Manufactured in strict accordance with the Japanese Industrial Standard for marine valves, ensuring compatibility with international shipbuilding specifications.
- Wide Size Range: Available from DN50 (2") up to DN600 (24"), covering most common piping requirements on ships and offshore structures.
- Superior Sealing: Utilizes high-quality elastomer seats (EPDM, NBR, VITON options) that provide bubble-tight shut-off and excellent resistance to seawater, oils, and chemicals.
- Corrosion-Resistant Materials: Key components like the disc are often made from stainless steel, while body materials can be selected based on service fluid and environmental conditions.
- Multiple Actuation Options: Can be supplied with lever, gearbox, electric, or pneumatic actuators to suit different control system requirements and enable remote operation.
- Low Torque Operation: The streamlined disc design minimizes flow turbulence and reduces operating torque, allowing for easier manual operation or smaller actuator sizing.
- Bi-Directional Sealing: Effective sealing in both flow directions, enhancing installation flexibility and system reliability.
Detailed Size & Pressure Rating Table:
| Nominal Diameter (DN) | Approx. Inch Equivalent | Standard Pressure Rating (JIS 10K/16K) | Typical Face-to-Face Dimension (Wafer) |
|---|---|---|---|
| 50 | 2" | 10K / 16K | 43 mm |
| 100 | 4" | 10K / 16K | 52 mm |
| 150 | 6" | 10K / 16K | 57 mm |
| 200 | 8" | 10K / 16K | 64 mm |
| 250 | 10" | 10K | 70 mm |
| 300 | 12" | 10K | 76 mm |
| 350 | 14" | 10K | 83 mm |
| 400 | 16" | 10K | 92 mm |
| 450 | 18" | 10K | 102 mm |
| 500 | 20" | 10K | 112 mm |
| 600 | 24" | 10K | 127 mm |
Benefits for Your Marine Projects:
- Enhanced System Reliability: The JIS standard compliance and quality materials minimize the risk of in-service failures, crucial for safety at sea.
- Cost-Effective Maintenance: The simple wafer design and accessible internal parts facilitate easier inspection and maintenance, reducing downtime and lifecycle costs.
- Global Acceptance: Valves built to JIS F7481 are widely recognized and accepted in shipyards worldwide, simplifying procurement and classification approval processes.
- Space and Weight Savings: Compared to lug-type or gate valves, the wafer design offers a significant advantage in compact installations.
- Versatile Fluid Handling: Suitable for a broad range of shipboard fluids including cold and hot water, seawater, air, and mild chemicals.
Our manufacturing processes are underpinned by an ISO9001 certified quality management system, ensuring consistent product quality from raw material sourcing to final testing. With annual exports valued between US$1 Million and US$1.5 Million, we have established a strong presence across diverse markets including North America, Europe, Asia, Africa, and Oceania. This global experience means we understand the specific requirements of different regions and classification societies. Sourced directly from our factory in Shanghai, with flexible shipment options from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we provide a reliable supply chain for your marine valve needs. Choose Shanghai Zhibang for valves that combine rigorous standards, proven durability, and manufacturer-direct value.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a wafer-style butterfly valve over a lug-style for marine use?
A: The wafer design is lighter, more compact, and typically more cost-effective. It is installed between two pipe flanges using through-bolts, which is ideal for systems where space and weight are critical constraints, such as onboard ships. -
Q: Are these valves suitable for seawater service?
A: Yes, they are designed for marine applications. We recommend specifying materials like stainless steel for the disc and EPDM or VITON for the seat to ensure optimal corrosion and chemical resistance against seawater. -
Q: Can you provide valves with electric or pneumatic actuators?
A: Absolutely. While the standard offering is with a lever or gear operator, we can equip the valves with electric or pneumatic actuators upon request to integrate with your automated control systems. -
Q: What pressure classes do you offer under JIS F7481?
A: Our valves are typically available in JIS 10K and 16K pressure ratings. The specific rating for each size can be confirmed based on your application requirements. -
Q: Do you offer different seat materials?
A: Yes. Standard seats are often EPDM for general water service. Alternatives like NBR for oil/fuel or VITON for higher chemical and temperature resistance are available. Please specify your service media. -
Q: How do I ensure the valve will be accepted by my classification society (e.g., ABS, DNV, LR)?
A: Valves manufactured to JIS F7481 are widely recognized standards. We can provide necessary material certificates and test reports (such as shell test, seat test) to support your classification submission. Specific society approvals may require additional testing and documentation, which can be discussed. -
Q: What is the typical lead time for an order?
A: Lead time depends on the order quantity, size, and material specifications. For standard configurations, we often maintain some stock or have shorter production cycles. Please contact us with your specific requirements for a precise timeline. -
Q: What are the available port of shipment options?
A: We can arrange shipments from Shanghai, Guangzhou, Hong Kong, or Beijing ports, offering flexibility for your logistics planning and cost optimization.
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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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