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Help CenterMarine Bronze Gate Valve Manufactured to JIS F7364 Standard, DN15-DN200
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As a dedicated manufacturer of industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance fluid control solutions for demanding global markets. Our Marine Bronze Gate Valve, engineered to the stringent JIS F7364 standard, represents our commitment to reliability and durability in harsh marine environments. With an annual export value reflecting our international reach, we understand the critical need for valves that withstand corrosion, pressure, and constant use. This valve is designed to provide secure shut-off and precise flow control in seawater, ballast, bilge, and other shipboard piping systems, offering shipbuilders and marine operators a dependable component backed by our ISO9001 certified quality management system.
Core Features & Technical Superiority
This gate valve is constructed from premium marine-grade bronze, a material specifically chosen for its excellent resistance to saltwater corrosion and dezincification. The design adheres strictly to the JIS F7364 standard, which governs the materials, dimensions, pressure ratings, and testing requirements for marine bronze valves, ensuring global compatibility and acceptance in shipbuilding and repair.
- Robust Construction: Features a solid wedge or parallel disc design (depending on model) that provides a tight, bubble-tight seal when fully closed, minimizing leakage risks.
- Corrosion Defense: The bronze alloy composition is optimized for long-term service in seawater, resisting pitting and erosion far better than standard brass or other materials.
- Smooth Operation: The rising stem with outside screw and yoke (OS&Y) design allows for easy visual indication of valve position (open or closed) and ensures the stem threads are isolated from the line fluid, preventing binding and corrosion.
- Versatile Configurations: Available in a comprehensive size range from DN15 to DN200, with options for flanged ends (JIS 10K/16K/20K) or threaded ends (BSPT/NPT) to match existing piping systems.
- Enhanced Durability: Metal-to-metal seating ensures the valve maintains its sealing capability even after prolonged use and exposure to abrasive particles sometimes found in marine applications.
- Maintenance-Friendly: Designed for in-line maintenance where possible, with a repackable gland to simplify stem seal replacement without removing the entire valve from the pipeline.
Technical Specifications & Benefits
The following table outlines key specifications for our standard range. Customizations are available upon request to meet specific project requirements.
| Parameter | Specification / Value | Client Benefit |
| Design Standard | JIS F7364 | Guarantees compliance with major ship classification society rules (e.g., ABS, DNV, LR) and simplifies procurement for shipyards. |
| Size Range (DN) | 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200 | Covers the vast majority of auxiliary line requirements on vessels, from small service lines to larger ballast lines. |
| Pressure Rating | 10K (PN16), 16K, 20K (Standard) | Provides a safety margin for various system pressures, ensuring reliable performance under normal and surge conditions. |
| Temperature Range | -20°C to 120°C | Suitable for both cold seawater intake and heated fluid services found in engine rooms and domestic systems. |
| Test Standards | Shell Test, Seat Leakage Test per JIS F7364 | Each valve undergoes rigorous factory testing, providing documented proof of integrity and leak-tightness before shipment. |
Operational & Economic Advantages
Choosing our JIS F7364 Marine Bronze Gate Valve translates into tangible benefits for your operations:
- Reduced Downtime: The durable construction and corrosion resistance lead to a longer service life and fewer replacements, minimizing unscheduled maintenance during voyages.
- Enhanced Safety: Reliable shut-off capability is critical for isolating sections of piping for repair and preventing flooding, contributing to overall vessel safety.
- Global Spare Parts Compatibility: Adherence to the JIS standard means these valves are dimensionally interchangeable with other compliant products, simplifying your spare parts inventory management worldwide.
- Cost-Effective Lifecycle: While the initial investment is competitive, the true value is realized through lower total cost of ownership due to reduced failure rates and maintenance needs.
Trust & Global Support
Shanghai Zhibang Valve is not just a supplier; we are a manufacturing partner with a proven track record. Our ISO9001 certification underpins every stage of production, from raw material inspection to final testing. With an annual export value between US$1 Million and US$1.5 Million, we have successfully delivered reliable valve solutions across diverse regions including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and Western Europe. This global experience means we understand the specific documentation, packaging, and logistical requirements for different markets. We ship efficiently from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring timely delivery to your project site or warehouse. By choosing our Marine Bronze Gate Valve, you are selecting a product built to a recognized standard, manufactured under a certified quality system, and supported by a company with extensive international reach. Contact us today for a quotation, technical drawings, or to discuss your specific application needs.
Frequently Asked Questions (FAQ)
Q1: Is this valve suitable for freshwater systems on ships as well?
A: Absolutely. While specifically engineered for seawater corrosion resistance, its robust bronze construction makes it an excellent and durable choice for freshwater cooling, sanitary, and other non-seawater systems onboard.
Q2: Can you provide valves with certificates for major classification societies like ABS or DNV?
A: Yes, we can. While standard production is to JIS F7364 (widely accepted), we can arrange for third-party inspection and provide the necessary material and test certificates required for specific class approval upon request. Please specify your classification society requirements when inquiring.
Q3: What is the typical lead time for an order of DN100 valves?
A: Lead time depends on the order quantity and specific configuration. For standard DN100, 10K flanged valves, we typically maintain some stock or can produce within 4-6 weeks. We provide a confirmed lead time with every formal quotation.
Q4: Do you offer different stem packing materials?
A: Yes. Standard packing is braided graphite-asbestos substitute or PTFE, suitable for the stated temperature range. Alternative packing materials like reinforced graphite can be provided for specific high-temperature or chemical service requirements.
Q5: How does the JIS F7364 standard compare to other marine valve standards like MSS SP-80?
A> JIS F7364 is a comprehensive Japanese Industrial Standard specifically for marine bronze valves, covering dimensions, materials, and testing. It is globally recognized and often specified in Asian shipbuilding. MSS SP-80 is an American standard. While both ensure quality, dimensions and pressure ratings may differ. It is crucial to specify the required standard for your project to ensure proper fit and compliance.
Q6: Are these valves suitable for use with oils or fuels?
A: The standard bronze alloy and metal seats are generally compatible with many oils and light fuels. However, for dedicated fuel oil service, especially with higher viscosities or temperatures, we recommend consulting with our engineers to confirm material suitability and discuss potential modifications for optimal performance.
Q7: Can you supply valves with gear operators for larger sizes or high-pressure applications?
A: Certainly. For sizes above DN80 or for applications requiring higher torque, we offer optional bevel gear or worm gear operators. This makes valve operation smoother and safer for personnel.
Q8: What is your standard packaging for export?
A> We use robust, export-ready packaging. Valves are typically cleaned, dried, coated with a rust preventative, all openings are plugged, and then placed in individual wooden crates or plywood boxes to prevent damage during ocean freight. Documentation (packing list, commercial invoice, test reports) is included.
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