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Help CenterJIS F7364 Bronze Gate Valve for Seawater, DN15-DN200, 5K/10K Pressure Rating
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As a specialized manufacturer with a strong focus on industrial valve solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to introduce our JIS F7364 Bronze Gate Valve, engineered specifically for demanding seawater applications. With our foundation in ISO9001-certified processes and a decade of experience since 2016, we understand the critical need for reliability in marine and offshore environments. This valve is designed to provide superior flow control, exceptional durability against corrosive seawater, and long-term operational stability, making it a trusted component for shipbuilders, port authorities, and coastal facility operators worldwide.
Our JIS F7364 Bronze Gate Valve is meticulously crafted to meet the rigorous standards required for seawater service. The selection of high-grade bronze alloys offers a proven defense against saltwater corrosion, biofouling, and erosion, ensuring the valve's integrity and performance over extended periods. The gate valve design provides a full-port opening for minimal pressure drop and unrestricted flow when fully open, and a tight shut-off when closed, which is essential for isolation and maintenance tasks in piping systems.
- Corrosion-Resistant Construction: The valve body, bonnet, gate, and stem are manufactured from premium bronze alloys specifically chosen for their excellent resistance to seawater corrosion and dezincification.
- JIS F7364 Compliance: Manufactured in strict adherence to the Japanese Industrial Standard F7364 for bronze valves, ensuring dimensional accuracy, material quality, and performance reliability recognized in international markets.
- Wide Size and Pressure Range: Available in a comprehensive size range from DN15 to DN200, with pressure ratings of 5K (approx. 125 PSI) and 10K (approx. 250 PSI), providing flexibility for various system requirements.
- Robust Sealing: Features a resilient seat or metal-to-metal sealing (depending on model) designed to maintain a bubble-tight seal even under fluctuating pressures and temperatures common in seawater applications.
- Durable Stem & Packing: A sturdy, non-rising stem design with high-quality gland packing (e.g., graphite, PTFE) ensures smooth operation and prevents leakage along the stem, even after numerous cycles.
- Versatile End Connections: Offered with flanged ends conforming to JIS standards or threaded ends (NPT, BSPT) as required, facilitating easy integration into existing piping networks.
- Operational Flexibility: Standard operation is via a handwheel. For larger sizes or high-pressure applications, a gearbox operator is available upon request to reduce required operating torque.
The technical specifications for key models are summarized in the table below:
| Nominal Size (DN) | Approx. L (mm) | Approx. H (mm) (Handwheel) | Pressure Rating | Standard End Connection |
|---|---|---|---|---|
| 15 | 130 | 180 | 5K / 10K | Threaded / Flanged |
| 25 | 150 | 200 | 5K / 10K | Threaded / Flanged |
| 50 | 180 | 250 | 5K / 10K | Flanged |
| 100 | 230 | 350 | 5K / 10K | Flanged |
| 150 | 280 | 450 | 5K / 10K | Flanged |
| 200 | 330 | 550 | 5K / 10K | Flanged |
Advantages & Client Benefits:
- Extended Service Life: The corrosion-resistant bronze construction significantly reduces maintenance frequency and replacement costs, offering a lower total cost of ownership.
- Global Compliance: Adherence to JIS F7364 makes this valve suitable for projects in Asia, Oceania, and other regions where this standard is specified or accepted, simplifying procurement for international contractors.
- Reliable Performance: Ensures safe and efficient isolation of seawater lines, protecting downstream equipment and enabling scheduled maintenance without system-wide shutdowns.
- Customization Options: As a manufacturer, we can accommodate specific requirements for trim materials, end finishes, painting, or marking to align with client specifications or project standards.
Shanghai Zhibang Valve's commitment to quality is underscored by our ISO9001 certification, which governs every stage of production from material sourcing to final testing. Our products have gained trust in diverse markets across North America, South America, Europe, Asia, Africa, and Oceania, supported by an annual export value reflecting consistent global demand. We ship efficiently from major ports including Shanghai, Guangzhou, Hong Kong, and Beijing. Choosing our JIS F7364 Bronze Gate Valve means selecting a component backed by rigorous manufacturing standards, proven material science for seawater, and a supplier dedicated to supporting your project's success from specification to delivery.
Frequently Asked Questions (FAQ)
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Q: What makes bronze suitable for seawater valves compared to other materials?
A: Bronze alloys, particularly those with specific compositions (like Admiralty bronze), offer excellent resistance to corrosion from saltwater, resistance to biofouling, and good machinability. They are a traditional and proven choice for marine applications, often outperforming standard brass or certain stainless steels in seawater environments. -
Q: Can this valve be used with other fluids besides seawater?
A: Yes. While optimized for seawater, its corrosion-resistant properties make it suitable for other brackish water, certain chemicals, oils, steam, and general water services within its pressure and temperature limits. Please consult us for specific fluid compatibility. -
Q: What is the difference between 5K and 10K pressure ratings?
A: "K" refers to the JIS pressure class. 5K corresponds to a nominal pressure of approximately 125 PSI (8.6 bar), while 10K corresponds to about 250 PSI (17.2 bar). The selection depends on your system's maximum working pressure requirements. -
Q: Are these valves available with actuators for remote operation?
A: While typically supplied for manual operation, we can provide valves prepared for the installation of electric, pneumatic, or hydraulic actuators. This is a customizable option available upon request. -
Q: Do you provide documentation and certification with the valves?
A: Yes. We provide standard documentation including a material test report (MTR) and a certificate of conformity. Additional certifications, such as a third-party inspection report, can be arranged if required. -
Q: What is your lead time for an order of DN100, 10K flanged valves?
A: Lead times vary based on order quantity and current production schedule. For standard configurations, we often maintain some inventory or have shorter production cycles. Please contact our sales team with your specific quantity and delivery requirements for an accurate timeline. -
Q: How do I select the correct end connection type?
A: The choice depends on your existing piping. Flanged ends are common for larger sizes and higher-pressure systems, allowing for bolted connections. Threaded ends (NPT/BSP) are typical for smaller diameter pipes. Provide us with your piping specifications or flange standards (JIS, ANSI, etc.), and we can recommend the suitable option. -
Q: What kind of warranty or after-sales support do you offer?
A: We stand behind the quality of our valves. Specific warranty terms are provided with the commercial proforma invoice. Our technical team is available to assist with installation guidance, troubleshooting, and sourcing spare parts if needed.
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