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Help CenterJIS F7363 5K Marine Gate Valve, Cast Iron Body, Non-Rising Stem Design
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As a leading valve manufacturer with a strong global presence, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our JIS F7363 5K Marine Gate Valve with Cast Iron Body and Non-Rising Stem Design. Engineered for demanding marine environments, this valve combines robust construction with reliable performance to ensure safe and efficient fluid control in shipboard piping systems. Our commitment to ISO9001 certified quality management guarantees that every valve meets stringent international standards, providing shipbuilders, shipyards, and marine operators with a dependable solution they can trust. With extensive experience exporting to major markets worldwide, we understand the critical requirements of marine applications and deliver products built to last.
This marine gate valve is specifically designed to meet the rigorous demands of sea water, ballast, and bilge systems. Its Non-Rising Stem (NRS) design offers significant advantages in confined spaces typical of engine rooms and ship holds, as the stem does not extend upward during operation. This compact feature prevents interference with overhead structures and allows for easier installation and maintenance. The valve's construction adheres strictly to the JIS F7363 standard, ensuring compatibility with Japanese shipbuilding specifications widely adopted in the global maritime industry.
- Superior Corrosion Resistance: The cast iron body provides excellent resistance to seawater corrosion, extending service life and reducing maintenance costs.
- Reliable Sealing Performance: Featuring a metal seat, the valve ensures tight shut-off even after prolonged exposure to abrasive media and frequent cycling.
- Easy Operation & Maintenance: The handwheel operation is designed for smooth actuation, and the non-rising stem design simplifies packing gland maintenance.
- Robust Pressure Handling: Rated for 5K pressure (equivalent to PN10), it is suitable for a wide range of marine piping applications.
- Global Compliance: Manufactured under ISO9001 guidelines, ensuring consistent quality and traceability for international clients.
The valve's technical specifications are detailed below to provide a clear understanding of its capabilities:
| Parameter | Specification |
|---|---|
| Product Standard | JIS F7363 |
| Pressure Rating | 5K (PN10) |
| Body Material | Cast Iron |
| Stem Material | Stainless Steel (Type Optional) |
| Seat Material | Metal (Bronze or Stainless Steel) |
| Connection | Flanged End (JIS 10K Flange Standard) |
| Stem Design | Non-Rising Stem (NRS) |
| Operation | Handwheel |
| Nominal Size Range | DN50 ~ DN300 (2" ~ 12") Available |
| Temperature Range | -10°C to 120°C |
| Suitable Media | Sea Water, Bilge Water, Ballast Water, Oily Water |
The primary benefits for your marine operations are substantial. The cast iron construction offers a cost-effective yet durable solution without compromising performance. The non-rising stem is a critical feature for space-constrained installations, enhancing safety and operational efficiency. By choosing this JIS-standard valve, you ensure system compatibility and simplify procurement for new builds and retrofit projects. Its reliable shut-off capability minimizes the risk of leaks, protecting valuable cargo and machinery while ensuring environmental compliance.
Our manufacturing expertise, backed by an ISO9001 certification, ensures that every valve undergoes rigorous testing before shipment. We support a streamlined global supply chain, with major ports like Shanghai, Guangzhou, Hong Kong, and Beijing facilitating efficient export to our widespread markets, including North America, Europe, Southeast Asia, Africa, and the Middle East. With an annual export value reflecting consistent client trust, Shanghai Zhibang Valve is your reliable partner for marine fluid control solutions. This JIS F7363 5K Marine Gate Valve represents a smart investment in operational reliability and longevity. Contact us today to discuss your specific requirements, request a detailed quotation, or learn more about our full range of marine valves.
Frequently Asked Questions (FAQ)
Q1: What does the "5K" pressure rating mean for this marine gate valve?
A1: The "5K" rating signifies a pressure class of 5 kgf/cm², which is approximately equivalent to PN10 (10 bar) or 142 PSI. It indicates the valve's maximum allowable working pressure for the specified temperature range, making it suitable for most standard marine water service applications.
Q2: Why is a Non-Rising Stem (NRS) design preferred in marine applications?
A2: The NRS design is highly advantageous in the confined and crowded spaces of ships and offshore platforms. Since the stem does not move vertically during opening/closing, it requires less overhead clearance. This prevents interference with pipes, cables, or structures above the valve, simplifying installation and enhancing safety in tight engine rooms or cargo holds.
Q3: Is this valve suitable for handling seawater and other corrosive media?
A3: Yes, absolutely. The cast iron body offers inherent corrosion resistance, and critical internal components like the stem and seat are typically made from bronze or stainless steel alloys to withstand the corrosive effects of seawater, bilge water, and ballast water effectively.
Q4: Are the flanges compatible with international piping standards, or only JIS?
A4: While the valve is manufactured to the JIS F7363 standard, which includes JIS 10K flange dimensions, many global shipbuilding projects specify JIS standards. For projects requiring other flange standards (like ANSI, DIN, or GB), please inquire about customization options. Dimensional drawings are available upon request for compatibility verification.
Q5: What is the typical lead time for orders of this valve?
A5: Lead times vary based on order quantity and specific size requirements. Standard sizes are often available from stock for quicker shipment. For larger or customized orders, our efficient manufacturing process allows us to provide competitive lead times. Specific delivery schedules can be provided with your formal inquiry.
Q6: Do you offer any other stem designs or materials for this valve series?
A6: Our standard offering is the non-rising stem design with a cast iron body. However, we understand project-specific needs. Alternative stem designs (like rising stem) or different material grades for body and trim (e.g., ductile iron, cast steel) may be available as optional or custom orders. Please contact our sales team with your detailed specifications.
Q7: What kind of testing and quality control does the valve undergo?
A7: Every valve is subject to a series of quality checks under our ISO9001 certified system. Standard testing includes shell strength tests, seat leakage tests (typically per API 598 or equivalent standards), and dimensional verification. Detailed test reports can be provided as part of the documentation package.
Q8: Can you provide support for technical documentation and installation?
A8: Certainly. We provide comprehensive technical support, including installation & maintenance manuals, detailed CAD drawings, material certificates, and test reports. Our engineering team is also available to assist with technical questions regarding installation, operation, or system integration for your specific project.
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