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Help CenterJIS F7300 316L Stainless Steel Marine Ball Valve, Full Port, DN15-DN300, PN16 Rating for Seawater Applications
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As a leading manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing robust and reliable fluid control solutions for demanding marine environments. Our JIS F7300 316L Stainless Steel Marine Ball Valve is engineered to deliver exceptional performance and longevity in seawater applications, offering superior corrosion resistance, a full port design for minimal pressure drop, and strict adherence to international marine standards. Trusted by clients across North America, South America, Europe, Asia, and beyond, we combine precision manufacturing with a deep understanding of maritime industry needs.
This valve is designed to meet the rigorous demands of shipbuilding, offshore platforms, and coastal facilities. Its core construction from 316L stainless steel provides outstanding resistance to pitting and crevice corrosion in chloride-rich seawater. The full bore design ensures virtually unrestricted flow, which is crucial for maintaining system efficiency and reducing pumping costs. Key features and benefits include:
- Superior Corrosion Resistance: The use of 316L stainless steel, with its low carbon content and added molybdenum, offers enhanced protection against corrosive seawater, extending service life and reducing maintenance frequency.
- JIS F7300 Compliance: Manufactured in strict accordance with the Japanese Industrial Standard for marine valves, ensuring compatibility, reliability, and acceptance in international marine projects.
- Full Port Design: Provides a flow passage diameter equal to the pipeline's inner diameter, minimizing turbulence, pressure loss, and allowing for easier pigging or cleaning of the line.
- Robust Pressure Handling: Rated for PN16 pressure, making it suitable for a wide range of seawater cooling, ballast, bilge, fire-fighting, and other shipboard piping systems.
- Versatile Size Range: Available from DN15 to DN300, offering solutions for various pipeline diameters commonly found on vessels and marine installations.
- Reliable Sealing: Typically equipped with PTFE or reinforced PTFE seats, ensuring a bubble-tight shut-off, excellent chemical resistance, and low operating torque.
For your specification convenience, here is a summary of key technical parameters for standard configurations:
| Parameter | Specification |
| Design Standard | JIS F7300 |
| Body Material | 316L Stainless Steel (CF3M) |
| Ball & Stem Material | 316 Stainless Steel |
| Seat & Seal Material | PTFE / Reinforced PTFE (Standard) |
| Size Range (Nominal Diameter) | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300 |
| Pressure Rating | PN16 (16 bar) |
| Temperature Range | -20°C to +180°C (depending on seat material) |
| Connection Standard | JIS B2220 10K Flange (or as requested) |
| Operation | Manual Lever (Standard), Gear Operator (Optional for larger sizes) |
| Fire Safe Design | Available upon request |
The advantages of choosing our marine ball valve translate directly into operational benefits for your projects. You gain a component that reduces the risk of costly failures and downtime in harsh environments. Its standardized design simplifies procurement, installation, and spare parts management for shipyards and fleet operators. Furthermore, the durable construction means a lower total cost of ownership over the valve's extended lifespan.
With an annual export value ranging between US$1 Million and US$1.5 Million and a strong presence in major global markets from North America and Europe to Southeast Asia and Africa, Shanghai Zhibang has proven its capability to deliver quality products on time. Our strategic shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing ensure flexible and efficient logistics. Backed by our ISO9001 certification, every valve undergoes rigorous inspection to guarantee it meets the promised specifications. For your next marine or seawater application requiring dependable, standards-compliant valves, contact us to discuss your requirements and experience the Zhibang advantage in durability and service.
Frequently Asked Questions (FAQ)
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Q: What is the main advantage of 316L over standard 316 stainless steel for marine valves?
A: The "L" designation indicates a lower carbon content. This significantly reduces the risk of sensitization and intergranular corrosion during welding, which is critical for the fabrication and repair of marine piping systems, ensuring long-term integrity in welded areas. -
Q: Is this valve suitable for freshwater applications as well?
A: Absolutely. While specifically engineered for seawater's harsh conditions, its 316L construction offers excellent corrosion resistance in a wide variety of fluids, including freshwater, chemicals, and oils, making it a versatile choice for multiple onboard systems. -
Q: Can you provide valves with different flange standards, like ANSI or DIN?
A: Yes. While the standard offering complies with JIS B2220 flanges, we can manufacture valves with ANSI, DIN, BS, or other international flange standards upon request to match your existing pipeline specifications. -
Q: What types of actuation are available for these ball valves?
A: They are standardly supplied with a manual lever for sizes up to DN100. For larger sizes (DN125 and above) or for remote operation, we offer optional gear operators, as well as pneumatic, hydraulic, or electric actuators tailored to your control system needs. -
Q: How does the full port design benefit a seawater cooling system?
A: The full port minimizes flow restriction and pressure drop across the valve. This allows for higher flow rates with less pump energy consumption, reduces the risk of cavitation, and prevents debris accumulation, which is vital for efficient heat exchanger performance. -
Q: Are these valves tested before shipment?
A: Yes, in line with our ISO9001 quality system, each valve undergoes stringent factory testing. This typically includes a shell test (body strength), a seat leak test (sealing performance), and an operational test to ensure smooth function. -
Q: What is the typical delivery lead time for an order?
A: Lead time depends on the order quantity, size, and specific configuration. Standard sizes and materials often have shorter lead times. We recommend contacting our sales team with your detailed requirements for an accurate production and delivery schedule. -
Q: Do you offer any customization, such as special coatings or extended stems?
A> We do. Customizations like epoxy coatings for additional protection, insulated stems, lockable handles, or specific packing materials can be discussed and provided based on your project's unique environmental or operational requirements.
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