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Help CenterJIS F7480 Pneumatic Butterfly Valve for Marine Ballast and Bilge Systems, Seawater Compatible
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As a specialized manufacturer with a strong focus on marine fluid control, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents its high-performance JIS F7480 Pneumatic Butterfly Valve. Engineered specifically for demanding marine applications, this valve offers reliable, automated control for ballast and bilge systems where compatibility with seawater is non-negotiable. Our decade of experience since 2016, combined with ISO9001-certified manufacturing processes, ensures each valve meets the rigorous standards required for vessel safety and operational efficiency.
The core value of this valve lies in its robust design and material selection, which directly addresses the corrosive challenges of the marine environment. By providing a dependable, low-maintenance solution for critical flow control, we help ship operators and builders enhance system reliability, reduce downtime, and ensure compliance with maritime regulations.
Detailed Features and Technical Advantages:
- JIS F7480 Compliance: Manufactured in strict accordance with the Japanese Industrial Standard F7480, ensuring dimensional interchangeability, reliable performance, and acceptance in global shipbuilding, particularly strong in Asian markets.
- Seawater-Optimized Material Construction: The valve body is typically crafted from ductile iron with epoxy coating or cast iron, while the disc is made from 316 stainless steel or nickel-aluminum bronze, offering superior resistance to pitting and crevice corrosion in chloride-rich seawater.
- Pneumatic Actuation for Automation: Equipped with a double-acting or spring-return pneumatic actuator, enabling remote and centralized control from the ship's bridge or control room. This facilitates rapid ballast transfer and efficient bilge management, crucial for vessel stability and safety.
- High-Performance Seat Sealing: Utilizes elastomer seats like EPDM (excellent for seawater) or NBR, with PTFE options available for wider chemical compatibility. The seat design ensures bubble-tight shut-off, preventing unwanted water transfer between tanks.
- Robust Flanged Connection: Features JIS standard flanges, ensuring a secure, leak-free connection to the ship's piping network, which is vital for maintaining system integrity under pressure and vibration.
- Low Torque Operation & Long Service Life: The streamlined disc design minimizes flow resistance and actuation torque, reducing wear on the actuator and extending the overall valve lifecycle, even with frequent cycling.
- Versatile Pressure Handling: Designed to handle standard working pressures common in marine ballast and bilge systems, providing a safe margin for various operational scenarios.
Technical Specifications Table:
| Parameter | Specification |
| Design Standard | JIS F7480 |
| Valve Type | Lugged or Wafer Style Butterfly Valve |
| Nominal Diameter (DN) | DN50 to DN800 (or as per customer request) |
| Pressure Rating | PN10, PN16, Class 150 |
| Body Material | Ductile Iron (Epoxy Coated), Cast Iron |
| Disc Material | 316 Stainless Steel, Nickel-Aluminum Bronze |
| Seat Material | EPDM, NBR, PTFE (Optional) |
| Actuator Type | Pneumatic (Double-Acting or Spring-Return) |
| Control Signal | 4-20mA, On/Off (Optional) |
| Operating Temperature | -20°C to +120°C (depends on seat material) |
| Application | Ship Ballast Systems, Bilge Systems, Seawater Lines |
Benefits for Our Clients:
- Enhanced Operational Safety: Reliable sealing and fail-safe actuator options (spring-return) contribute to safer ballast operations, directly impacting vessel stability.
- Reduced Maintenance Costs: Corrosion-resistant materials and robust construction minimize the frequency of repairs and part replacements in harsh seawater environments.
- Improved System Efficiency: Automated pneumatic control allows for faster, more precise tank filling and emptying, optimizing ballast management and saving time.
- Global Compliance and Compatibility: Adherence to JIS F7480 standard ensures the valve is a suitable fit for new builds and retrofit projects in shipyards worldwide.
- Supply Chain Reliability: With an annual export value reflecting consistent international trade, we demonstrate dependable supply capabilities to shipyards and marine equipment distributors across continents.
Shanghai Zhibang's commitment to quality is underscored by our ISO9001 certification, which governs our entire manufacturing process. Our products have gained trust in diverse maritime markets, from North America and Western Europe to Southeast Asia and the Middle East. We support this global reach with flexible logistics, shipping from major ports like Shanghai, Guangzhou, and Hong Kong. Choosing our JIS F7480 Pneumatic Butterfly Valve means selecting a component backed by proven export experience, systematic quality control, and a clear understanding of marine application challenges. Contact us today to discuss how this valve can be integrated into your next marine project or to request a detailed quotation.
Frequently Asked Questions (FAQ):
Q1: Is this valve suitable for both fresh and seawater ballast systems?
A: Yes, absolutely. The material specifications, particularly the use of 316 stainless steel or bronze for the disc and EPDM seats, are chosen specifically for excellent corrosion resistance in both fresh and seawater environments.
Q2: Can you provide valves with different flange standards, like ANSI or DIN, instead of JIS?
A: While this product line is designed to JIS F7480, we offer customization. Please inquire about valves built to ANSI, DIN, or other international standards to match your specific piping requirements.
Q3: What is the lead time for an order of 50 pieces of DN200 valves?
A: Lead times vary based on order size and specification. For a standard DN200 configuration, production typically takes 4-6 weeks. We provide accurate timelines upon receipt of your detailed inquiry.
Q4: Do you supply the pneumatic actuator separately, or is it included as a package?
A: We typically supply the valve as a complete package, including the pneumatic actuator, positioner (if required), and mounting accessories, ensuring compatibility and optimal performance.
Q5: How does the pneumatic actuation integrate with a ship's existing control system?
A: The pneumatic actuators can be configured for simple on/off control via solenoid valves or can be equipped with positioners for proportional (4-20mA) control, allowing seamless integration into modern PLC-based ship control systems.
Q6: What kind of warranty or after-sales support do you offer for marine valves?
A: We provide a standard warranty against manufacturing defects. Our technical team offers support for installation guidance and troubleshooting. Spare parts like seals and gaskets are available for long-term maintenance.
Q7: Are these valves suitable for use in bilge systems handling oily water?
A: For bilge systems, the seat material selection is critical. While EPDM is suitable for seawater, NBR or PTFE may be recommended for hydrocarbon presence. We can advise on the best material combination based on your specific media.
Q8: Can you provide documentation such as material certificates and test reports?
A: Yes, upon request, we can provide relevant documentation including material chemical and mechanical test certificates, as well as pressure test reports, which are often required for marine classification society approvals.
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