Contact Platform Support
Help Center
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 designed for corrosive seawater environments. Features a compact wafer design, corrosion-resistant material options (stainless steel/bronze disc, EPDM seat), and sizes from DN50 to DN600. Ensures reliable sealing, low maintenance, and easy integration with manual or automated actuation. Ideal for ballast, cooling, and fire systems on ships.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
Get Latest Price
Standard:
JIS F7481
Application:
Other, Marine piping systems
Connection Type:
Wafer
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
Related Products
-
JIS F7480 Marine Butterfly Valve for Seawater Cooling Systems in ShipbuildingNegotiableMOQ: 1 Unit -
JIS F7480 Marine Butterfly Valve With 304 Stainless Steel Disc and EPDM SeatNegotiableMOQ: 1 Unit
-
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
-
JIS F7480 Marine Butterfly Valve OEM Factory With ISO 9001 Certified ProductionNegotiableMOQ: 1 Unit
Standard
JIS F7481
Application
Other, Marine piping systems
Connection Type
Wafer
Nominal Diameter (DN)
DN50, DN100, DN150, DN200, DN250, DN300, DN350, DN400, DN450, DN500, DN600
Body Material
Cast Iron, Ductile Iron, Stainless Steel (Optional)
Disc Material
Stainless Steel, Bronze (Optional)
Seat Material
EPDM, NBR, PTFE (Optional)
Pressure Rating
10K, 16K (Available upon request)
Operation
Lever, Gear, Electric Actuator (Optional)
Certification
ISO9001 Quality Management System
As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance range of JIS F7481 Marine Wafer Butterfly Valves. Designed specifically for the demanding conditions of marine and offshore applications, these valves offer a reliable and cost-effective solution for flow control in seawater, ballast, cooling, and fire-fighting systems. Our commitment to quality, backed by our ISO9001 certification and annual export value of US$1-1.5 million, ensures that every valve meets the rigorous standards required for safe and efficient maritime operations. With main markets spanning across the globe, from North America and Europe to Southeast Asia and Africa, our products are trusted by shipyards and marine engineers worldwide.
Our JIS F7481 Marine Wafer Butterfly Valves are engineered for durability and ease of operation in corrosive marine environments. The wafer-style design provides a compact and lightweight installation between two pipe flanges, saving valuable space and weight onboard vessels—a critical factor in marine engineering.
Key Features & Technical Advantages:
- Robust Construction: The valve body is typically manufactured from high-grade cast iron or ductile iron with corrosion-resistant coatings. The disc, the primary flow control element, is often made from stainless steel (such as CF8M/316) or bronze to withstand seawater corrosion.
- Superior Sealing Performance: Equipped with a resilient seat made from materials like EPDM, NBR, or PTFE. This design ensures a bubble-tight seal, excellent resistance to seawater, and a long service life even with frequent cycling.
- Compliance with JIS F7481: Manufactured in strict accordance with the Japanese Industrial Standard for marine butterfly valves, guaranteeing dimensional interchangeability, performance reliability, and acceptance in international marine projects.
- Wide Size Range: Available in a comprehensive range of nominal diameters from DN50 (2") to DN600 (24"), catering to various pipeline requirements on different types of vessels.
- Multiple Actuation Options: Valves can be supplied with a manual lever, a worm gear operator for higher torque applications, or automated with electric, pneumatic, or hydraulic actuators for remote control and integration into ship automation systems.
- Low Pressure Drop & Easy Maintenance: The streamlined disc design minimizes flow resistance when fully open. The simple construction allows for easy inline maintenance or seat replacement without removing the entire valve body from the pipeline.
Technical Specifications Table:
| Parameter | Specification / Option |
| Design Standard | JIS F7481 |
| Nominal Diameter (DN) | 50, 100, 150, 200, 250, 300, 350, 400, 450, 500, 600 |
| Pressure Rating | 10K (PN16), 16K (PN25) - Confirm based on application |
| Body Material | Cast Iron (GG25), Ductile Iron (GGG40), Stainless Steel (CF8/304, CF8M/316) |
| Disc Material | Stainless Steel (304, 316), Bronze (Optional: Aluminum Bronze, Ni-Al Bronze) |
| Seat Material | EPDM (Seawater), NBR (Oil), PTFE (Chemical/Cryogenic) |
| Operating Temperature | Depends on seat material (e.g., EPDM: -20°C to +120°C) |
| Operation Type | Lever, Worm Gear, Electric Actuator, Pneumatic Actuator |
| Face-to-Face | As per JIS F7481 standard for corresponding DN size |
Benefits for Our Clients:
- Enhanced System Reliability: Reduces the risk of leaks and failures in critical marine systems, ensuring vessel safety and operational continuity.
- Cost-Effective Solution: Offers a favorable balance between initial investment, maintenance costs, and service life compared to other valve types like gate or globe valves.
- Global Compliance & Acceptance: Adherence to JIS F7481 facilitates approval processes with ship classification societies and simplifies procurement for international projects.
- Flexible Configuration: Customizable material combinations and actuation methods allow the valve to be tailored to specific fluid media (seawater, oily water, chemicals) and control requirements.
- Efficient Logistics: We ship from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to global destinations.
Shanghai Zhibang's expertise as a dedicated manufacturer, combined with our proven track record of supplying valves to diverse markets across five continents, provides a solid foundation of trust. Our ISO9001-certified quality management system governs every stage of production, from material sourcing to final testing. This commitment to consistent quality, paired with the robust design of our JIS F7481 Marine Wafer Butterfly Valves, delivers a product you can specify with confidence for your next marine or offshore project. Contact us today to discuss your requirements, request detailed quotations, or explore our full valve portfolio.
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 and more compact, which is advantageous for saving weight and space on ships. It is installed between two flanges using through-bolts, making it suitable for systems where the pipeline is supported independently. -
Q: Can this valve be used for both isolation and throttling control?
A: Yes, butterfly valves are suitable for on/off isolation as well as flow modulation (throttling). However, for precise throttling control, especially with larger sizes or higher differential pressures, a characterized disc or a specific actuator type may be recommended. -
Q: Are these valves suitable for handling seawater directly?
A: Absolutely. When configured with a seawater-resistant material combination—such as a coated cast iron or stainless steel body, a stainless steel or bronze disc, and an EPDM seat—these valves are specifically designed for seawater service in ballast, cooling, and fire lines. -
Q: Do you provide valves with actuators for automated control systems?
A: Yes, we offer a range of actuation solutions. Our valves can be fitted with electric, pneumatic, or hydraulic actuators upon request. We can also supply limit switches, positioners, and other accessories for integration into your ship's control system. -
Q: What is the lead time for an order of DN300 valves?
A: Lead times vary based on order quantity, specific material choices, and actuation requirements. As a manufacturer with streamlined operations, we generally offer competitive lead times. Please contact our sales team with your detailed specifications for an accurate delivery schedule. -
Q: Are the valves tested before shipment?
A> Yes, in line with our ISO9001 quality procedures, each valve undergoes routine tests, which typically include a shell strength test and a seat leakage test according to relevant standards, to ensure performance integrity. -
Q: Can you provide documentation like material certificates and test reports?
A> Standard documentation including a certificate of compliance and a test report is provided with the shipment. Additional documentation such as material mill certificates (3.1 or 3.2) can be supplied upon request and may incur extra charges. -
Q: What are the main differences between JIS F7481 and other standards like ISO or API?
A> JIS F7481 is a Japanese standard specifically for marine butterfly valves, covering dimensions, pressure ratings, and testing. While there are similarities, key differences lie in specific dimensional tolerances, pressure-temperature ratings, and marking requirements. Our valves are manufactured to meet the exact specifications of JIS F7481.
Send Inquiry to This Supplier
* Email
Want the best price?
Post an RFQ now!
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
You May Also Like
-
JIS F7480 Marine Butterfly Valve With Custom Design for Specific Ship PipingNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve With 9 Classification Societies ApprovalNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve With Lever/Gear/Actuator Operation OptionsNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve for Marine Engine Room PipingNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve With 7x24 Technical Support and Spare Parts ServiceNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve With Wafer Type, PN16 Pressure RatingNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve for Ballast Water With Extended Warranty and Mill Test Report ProvidedNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve Designed for Ballast Water Management Systems on Cargo Ships and TankersNegotiableMOQ: 1 Unit
-
JIS F7480 Marine Butterfly Valve for Ballast Water Systems With Ductile Iron Body and 316L Stainless Steel DiscNegotiableMOQ: 1 Unit
-
JIS F7480 Butterfly Valve for Ballast Water Treatment, 10K Pressure Rating and Corrosion-Resistant ConstructionNegotiableMOQ: 1 Unit
