JIS F7301 Lockable Ball Valve for Marine Applications, DN15-DN50 Threaded Ports, Cast Steel Body
Product Spotlights
As a professional valve manufacturer with a strong focus on the marine industry, Shanghai Zhibang Valve is proud to present our JIS F7301 Lockable Ball Valve series. Engineered specifically for demanding marine and offshore applications, this valve is designed to provide reliable, long-lasting performance in corrosive saltwater environments. Our commitment to quality, backed by our ISO9001 certification, ensures that every valve meets the rigorous standards required for shipboard systems, including cooling, bilge, ballast, and general service lines. With an annual export value reflecting our global reach, we understand the critical need for durable and dependable fluid control solutions on vessels operating worldwide.
The JIS F7301 Lockable Ball Valve is a cornerstone of safe and efficient marine piping systems. Its core design addresses the unique challenges of the maritime sector.
- Robust Construction for Harsh Environments: The valve body is constructed from high-grade cast steel, offering superior strength and excellent corrosion resistance, which is essential for prolonged exposure to seawater and marine atmospheres.
- Enhanced Safety with Lockable Feature: A key differentiator is the integrated lockable handle. This feature allows the valve to be secured in either the fully open or fully closed position, preventing unauthorized or accidental operation—a critical safety requirement on ships for isolating systems during maintenance or in emergencies.
- Compliance with Marine Standards: Manufactured in accordance with JIS F7301, this valve is specifically designed and tested for marine use. This standard governs the construction, materials, and testing of steel valves for marine applications, ensuring compatibility and reliability within shipbuilding specifications.
- Wide Size and Connection Compatibility: Available in a practical range from DN15 to DN50, it caters to common auxiliary and secondary system piping. The threaded ports (NPT, BSP, or other standards as requested) facilitate straightforward installation and replacement in existing piping networks.
- Reliable Bubble-Tight Sealing: Equipped with seats made from materials like PTFE, the valve ensures a bubble-tight seal in both directions, minimizing leakage and ensuring efficient system operation. The full-port or standard-port design minimizes pressure drop across the valve.
- Quarter-Turn, Easy Operation: The simple 90-degree turn operation allows for quick opening and closing, which is vital during routine operations or emergency shutdown procedures on board.
The technical specifications below outline the key parameters of our standard offering. Custom configurations regarding pressure class, specific thread standards, or material grades are available to meet precise project requirements.
| Design Standard | JIS F7301 (Steel valves for marine applications) |
| Valve Type | Two-Piece, Full Port / Standard Port, Lockable Ball Valve |
| Body Material | Cast Steel (e.g., WCB, LCB, CF8M optional) |
| Size Range (Nominal Diameter) | DN15, DN20, DN25, DN32, DN40, DN50 |
| End Connection | Threaded (NPT, BSPP, BSPT as specified) |
| Seat & Seal Material | PTFE (Standard), Enhanced PTFE, Nylon optional |
| Operation | Lockable Lever Handle (Padlock provision) |
| Test & Inspection | Shell Test, Seat Test, Material Certification |
For shipbuilders, repair yards, and vessel operators, the benefits are clear. This valve reduces maintenance downtime through its durable construction, enhances onboard safety with its positive locking mechanism, and ensures regulatory compliance for marine fittings. Its global availability from multiple ports like Shanghai, Guangzhou, and Hong Kong streamlines the supply chain for international projects.
Trust and Proven Performance: Shanghai Zhibang Valve, established in 2016, has rapidly grown into a trusted supplier, exporting over US$1 million in quality valves annually to key maritime markets including North America, Europe, Southeast Asia, and the Middle East. Our ISO9001 certified manufacturing process is your assurance of consistent quality and traceability. We invite you to experience the reliability of our JIS F7301 Lockable Ball Valves. Contact us today to discuss your specific requirements, request samples, or receive a competitive quotation. Let us be your partner in navigating the demanding world of marine fluid control.
Frequently Asked Questions (FAQ)
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Q: What is the significance of the JIS F7301 standard for this valve?
A: JIS F7301 is a Japanese Industrial Standard specifically for steel valves used in marine applications. It defines requirements for materials, design, manufacturing, and testing to ensure valves can withstand the harsh conditions at sea, including vibration, corrosion, and pressure variations. Compliance with this standard is often specified in shipbuilding contracts. -
Q: Can this valve be used with seawater directly?
A: Yes, the cast steel body and appropriate trim materials (like stainless steel ball and PTFE seats) provide good corrosion resistance against seawater. For prolonged seawater service, specifying higher-grade materials like CF8M (316 stainless steel) for the body and ball is recommended and available upon request. -
Q: How does the lockable handle function, and what type of lock is needed?
A: The handle has a provision (a hole or a tab) to accept a standard padlock. When the valve is in the desired position (open or closed), a padlock can be inserted through this provision, physically preventing the handle from being turned. This is a simple yet effective mechanical lockout/tagout (LOTO) feature. -
Q: Are other end connections besides threaded ports available?
A: Our standard offering for this DN15-DN50 range is threaded ends. However, for other sizes or specific projects, we can provide valves with socket weld or flanged ends. Please inquire with your connection requirements. -
Q: What pressure class is this valve rated for?
A: The standard pressure rating aligns with common marine service requirements for auxiliary systems. The exact pressure rating (e.g., Class 150, PN16/PN25) depends on the specific material grade and design. Please consult our technical datasheet or contact us with your operating pressure details for confirmation. -
Q: Do you offer different handle or locking mechanisms?
A: The standard is a lever handle with a padlock hole. Options such as a locking device with a numbered tag for management systems, or a gear operator for larger sizes, can be discussed as part of a custom order. -
Q: What documentation is provided with the valves?
A: Standard documentation includes a packing list and a commercial invoice. Upon request and potentially at an additional cost, we can provide material test certificates (MTC), inspection reports, and certificates of conformity stating compliance with JIS F7301. -
Q: What is your lead time and shipping process?
A: Lead times vary based on order quantity and specification. We ship from major Chinese ports including Shanghai, Guangzhou, and Hong Kong, and have extensive experience exporting to all your listed global markets, ensuring smooth logistics.
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