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Help CenterJIS F7480 Marine Butterfly Valve for Ballast Water Systems With Ductile Iron Body and 316L Stainless Steel Disc
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As a professional manufacturer of industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to introduce our high-performance JIS F7480 Marine Butterfly Valve, engineered specifically for the demanding environments of ballast water systems. With an annual export value reaching up to US$1.5 million and a presence in global markets from North America to Southeast Asia, we understand the critical need for reliability and compliance in marine applications. Our valve combines a robust ductile iron body with a corrosion-resistant 316L stainless steel disc, offering a durable and cost-effective solution that ensures safe and efficient ballast water management, protecting both vessel operations and marine ecosystems.
This valve is designed to meet the stringent requirements of marine engineering, providing superior sealing performance and long service life even under continuous operation in seawater. The core value lies in its ability to deliver consistent flow control with minimal pressure drop, which is crucial for ballast water treatment systems where precise valve operation directly impacts system efficacy and regulatory compliance.
Key Features & Technical Advantages:
- Corrosion-Resistant Construction: The 316L stainless steel disc offers exceptional resistance to pitting and crevice corrosion in chloride-rich seawater, significantly extending the valve's lifespan compared to standard stainless steel grades.
- Robust Body Design: The ductile iron body provides high tensile strength and impact resistance, capable of withstanding the physical stresses and pressure fluctuations common in ballast piping systems.
- JIS F7480 Compliance: Manufactured in strict accordance with Japanese Industrial Standard F7480 for marine valves, ensuring dimensional interchangeability, reliable performance, and acceptance in international shipbuilding and repair yards.
- Excellent Sealing Performance: Available with various seat materials like EPDM, NBR, or PTFE, the valve ensures a bubble-tight seal in both directions, preventing leakage and contamination of ballast water.
- Low Torque Operation: The optimized disc and stem design reduces operating torque, allowing for smoother manual operation (lever/gear) and enabling the use of smaller, more economical actuators for automated systems.
- Bi-Directional Flow Capability: Suitable for flow in either direction, offering flexibility in piping layout and installation within the ballast water system.
Detailed Technical Specifications:
| Parameter | Specification |
|---|---|
| Design Standard | JIS F7480 |
| Body Material | Ductile Iron (GGG50) |
| Disc Material | 316L Stainless Steel |
| Stem Material | 316 Stainless Steel |
| Seat Material | EPDM / NBR / PTFE (Optional) |
| Pressure Rating | 10K (PN16) or 16K (PN25) (Customizable) |
| Temperature Range | Depends on seat material: EPDM/NBR: -10°C to 80°C; PTFE: -20°C to 150°C |
| Size Range (Nominal Diameter) | DN50 (2") to DN600 (24") |
| Connection | Flanged, JIS 10K/16K or JIS 5K/10K face-to-face dimensions |
| Operation | Lever, Gearbox, Pneumatic/Hydraulic/Electric Actuator (Optional) |
| Flow Characteristic | Approximately Equal Percentage |
| Leakage Class | Zero Leakage (Soft Seat), ANSI/FCI 70-2 Class VI (available upon request) |
Benefits for Your Ballast Water System:
- Enhanced System Reliability: Reduces the risk of valve failure and unplanned downtime, ensuring continuous ballast operations.
- Compliance Assurance: Helps vessel operators meet IMO Ballast Water Management Convention and other regional regulations by providing a reliable component for treatment systems.
- Reduced Maintenance Costs: The corrosion-resistant materials minimize fouling and degradation, leading to lower lifecycle costs and fewer dry-docking interventions.
- Installation Flexibility: Standard JIS flanges facilitate easy integration into existing or new piping systems designed to Japanese or similar international standards.
- Optimized Flow Efficiency: The butterfly valve design offers minimal flow restriction, contributing to energy savings in ballast pump operations.
Backed by our ISO9001-certified quality management system and supported by efficient logistics from major ports like Shanghai, Guangzhou, and Hong Kong, Shanghai Zhibang delivers products that meet rigorous international standards. Our valves are trusted by clients across diverse regions, including North America, Europe, Southeast Asia, and Africa, for their consistent performance in critical marine applications. This JIS F7480 Marine Butterfly Valve embodies our commitment to providing durable, compliant, and cost-effective solutions. For a reliable partner in your ballast water management strategy, contact us today to discuss your specifications or request a detailed quotation.
Frequently Asked Questions (FAQ)
Q1: Why is the JIS F7480 standard important for marine butterfly valves?
A1: The JIS F7480 standard specifies requirements for dimensions, materials, pressure ratings, and testing for marine flanged butterfly valves. Using a JIS-compliant valve ensures compatibility with piping systems in many shipyards worldwide, particularly in Asia, and guarantees a recognized level of performance and safety for marine applications.
Q2: Can this valve be used with other fluids besides seawater in ballast systems?
A2: While designed for seawater, its 316L stainless steel disc and optional seat materials (like PTFE) make it suitable for handling a range of mildly corrosive fluids, including treated ballast water, fresh water, and certain chemicals. Always confirm fluid compatibility for your specific application.
Q3: What are the main differences between the 10K and 16K pressure ratings?
A3: The "K" rating (e.g., 10K, 16K) refers to the pressure class in JIS standards, roughly equivalent to PN16 and PN25 in DIN standards, respectively. The 16K valve is designed for higher pressure applications. The appropriate rating should be selected based on your system's maximum working pressure.
Q4: Is an actuator included, and what types are available?
A4: The valve can be supplied as a manual unit (with lever or gear operator) or prepared for actuator mounting. We can provide various actuator options—pneumatic, hydraulic, or electric—tailored to your control system requirements. This is typically a customizable feature.
Q5: How does the ductile iron body compare to cast iron or cast steel?
A5: Ductile iron offers superior strength and ductility (ability to deform without breaking) compared to standard cast iron, making it more impact-resistant and suitable for dynamic marine environments. It provides a favorable balance of performance and cost compared to cast steel.
Q6: What is the typical delivery lead time for an order?
A6: Lead time depends on order quantity, size, and configuration (e.g., actuator requirements). Standard sizes are often available from stock or have shorter production cycles. We provide accurate lead time estimates upon receipt of your detailed inquiry.
Q7: Do you offer any warranty or after-sales support?
A7: Yes, our valves come with a standard warranty against material and manufacturing defects. Furthermore, as an ISO9001-certified manufacturer, we provide comprehensive technical documentation and support to assist with installation, operation, and maintenance.
Q8: Can you provide valves with certifications for specific marine classification societies?
A8> We can arrange for type approval or product certification from major classification societies (such as ABS, DNV, LR, etc.) upon request. This process involves additional testing and documentation, which we can guide you through.
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