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Help CenterJIS F7480 Butterfly Valve DN50-DN1200 for Marine Freshwater & Cooling Systems
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As a leading manufacturer with a strong presence in the global valve industry, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance JIS F7480 Butterfly Valves, engineered specifically for demanding marine applications. With our ISO9001 certified production processes and a commitment to quality since our establishment in 2016, we deliver reliable flow control solutions that are trusted by shipbuilders and marine engineers worldwide. Our valves are designed to provide exceptional sealing and durability in freshwater and cooling systems, ensuring the smooth and efficient operation of your vessel's critical systems. We understand the unique challenges of the maritime environment, and our products are built to withstand them.
Our JIS F7480 compliant butterfly valves represent a perfect blend of robust construction, precise engineering, and reliable performance. They are manufactured to meet the stringent requirements of marine service, offering a compact, lightweight, and cost-effective alternative to traditional gate or globe valves in piping systems.
- Superior Sealing Performance: The valve features a resilient seat that provides bubble-tight shut-off, essential for preventing leakage in freshwater and cooling lines. The seat material is carefully selected based on the media and temperature.
- Robust and Corrosion-Resistant Construction: Key components like the disc and stem are made from corrosion-resistant materials such as stainless steel. The body is available in ductile iron with epoxy coating or other protective finishes to resist saltwater corrosion.
- Low Torque Operation: The streamlined disc design minimizes flow resistance and allows for easy operation with a lever, gearbox, or actuator, reducing operational effort and wear.
- Bi-Directional Flow Capability: The valve can be installed for flow in either direction, offering flexibility in system design and installation.
- Long Service Life: Designed for minimal maintenance, the valve's simple construction and high-quality materials ensure a long operational lifespan even in continuous service.
- Compact and Lightweight Design: Compared to other valve types, the butterfly valve offers significant space and weight savings, a critical advantage in shipboard applications.
Below is a summary of key technical specifications for our standard range:
| Parameter | Specification / Option |
| Design Standard | JIS F7480 (Japanese Industrial Standard for Marine Valves) |
| Nominal Diameter (DN) | 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600, 700, 800, 900, 1000, 1200 |
| Pressure Rating | PN10, PN16; Class 125, Class 150 |
| Body Material | Ductile Iron (Epoxy Coated), Cast Iron, Cast Steel, Stainless Steel (304, 316) |
| Disc Material | Stainless Steel (CF8/304, CF8M/316), Bronze, Aluminum Bronze |
| Stem Material | Stainless Steel (AISI 420, AISI 304/316) |
| Seat Material | EPDM (for freshwater), NBR (for oil), PTFE (for high temp/corrosive media) |
| Connection Type | Wafer, Lug, Double Flanged (to JIS, ANSI, DIN standards) |
| Operating Temperature | -20°C to +120°C (depends on seat material; EPDM: -20°C to 120°C) |
| Operation Method | Lever, Worm Gear, Pneumatic Actuator, Electric Actuator |
The primary benefit for our clients is operational reliability. A valve failure in a marine cooling system can lead to engine overheating and costly downtime. Our valves are engineered to prevent this. The JIS F7480 compliance ensures they meet recognized quality and safety benchmarks for marine use. Furthermore, the wide size range from DN50 to DN1200 allows for a single-source solution for various piping needs on a vessel, from auxiliary lines to main cooling circuits. The availability of different actuator options facilitates integration into automated control systems, enhancing operational efficiency and safety by allowing remote operation.
Shanghai Zhibang Valve stands behind every product we ship. With an annual export value ranging between US$1 Million and US$1.5 Million, we have successfully supplied our marine valves to key markets including North America, South America, Eastern Europe, Southeast Asia, Africa, and Oceania. Our products are shipped from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring efficient logistics to your location. Our ISO9001 certification is a testament to our systematic approach to quality management, from raw material inspection to final testing. When you choose our JIS F7480 Butterfly Valve, you are not just buying a component; you are investing in the reliability of your vessel's systems, backed by a manufacturer with a proven global track record. Contact us today to discuss your specific requirements or to request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: What does JIS F7480 mean, and why is it important for marine valves?
A1: JIS F7480 is a Japanese Industrial Standard specifically for marine valves. It defines the materials, design, dimensions, testing, and inspection requirements to ensure valves are suitable for the harsh marine environment. Compliance with this standard is a key indicator of quality and reliability for shipboard applications.
Q2: Can this valve be used for seawater applications?
A2: While this valve series is optimized for freshwater and cooling systems, it can be configured for seawater service. This typically requires specifying a body with a more robust corrosion-resistant coating (like high-build epoxy) and selecting a disc/stem material such as 316 stainless steel or bronze. Please specify your media when inquiring.
Q3: What is the difference between wafer and lug-type butterfly valves?
A3: A wafer-type valve is sandwiched between two pipe flanges using long bolts. A lug-type valve has threaded inserts (lugs) on the body, allowing it to be bolted directly to each flange, providing a more secure connection and the ability to isolate a section of piping by removing downstream bolts.
Q4: What actuator options are available, and how do I choose?
A4: We offer manual operation (lever or gearbox), pneumatic actuators, and electric actuators. The choice depends on your system requirements: manual for simple on/off, pneumatic for fast cycling and hazardous areas, and electric for precise control and integration with PLC systems. Our team can advise based on your pressure, cycle frequency, and control needs.
Q5: What is the lead time for an order of DN500 valves with electric actuators?
A5: Lead times vary based on order quantity and specifications. Standard configurations typically have shorter lead times. For customized orders like DN500 valves with specific electric actuators, we recommend contacting our sales team with your detailed requirements for an accurate production schedule.
Q6: Do you provide pressure test reports and certification with the valves?
A6> Yes, as an ISO9001 certified manufacturer, each valve undergoes rigorous pressure testing (shell test and seat test) before shipment. A standard factory test report can be provided. Additional certifications like a Material Test Report (MTR) are available upon request.
Q7: Are spare parts like seals and gaskets readily available?
A7> Absolutely. We maintain an inventory of common spare parts for our valve models. We recommend keeping a set of critical seals as onboard spares. You can order spare parts kits directly from us to ensure compatibility and quality.
Q8: Can you customize the valve painting or marking according to our specifications?
A8> Yes, customization is available. We can apply specific paint colors (e.g., standard marine colors) and markings (tag number, flow direction) as per your purchase order or provided drawings. Please discuss these requirements during the quotation stage.
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