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Help CenterRising Stem JIS F7305 5K Marine Globe Valve Flanged Cast Iron DN50-DN200 for Freshwater Lines
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Shanghai Zhibang Valve Manufacture Co., Ltd., an ISO9001 certified manufacturer established in 2016, proudly presents our Rising Stem JIS F7305 5K Marine Globe Valve. Designed specifically for freshwater lines in marine environments, this flanged cast iron globe valve combines robust construction with precise flow control. With an annual export value exceeding US$1 million and shipments to major ports including Shanghai, Guangzhou, Hong Kong, and Beijing, our valves have gained trust across global markets including North America, Europe, Southeast Asia, and Oceania.
Our globe valve features a rising stem design that provides clear visual indication of valve position, making it ideal for operators who need to verify open/close status at a glance. The JIS F7305 5K rating ensures reliable performance in low-pressure freshwater systems commonly found on ships, offshore platforms, and marine facilities. The flanged connection simplifies installation and maintenance, while the cast iron body offers excellent corrosion resistance for freshwater applications.
Key Features & Technical Specifications
- Rising Stem Design: Provides immediate visual feedback of valve position, enhancing operational safety and convenience.
- JIS F7305 Standard: Manufactured strictly according to Japanese Industrial Standard for marine globe valves, ensuring compatibility with existing systems.
- Pressure Rating 5K (0.7 MPa): Suitable for freshwater lines with working pressures up to 0.7 MPa at ambient temperature.
- Flanged Connection: JIS 5K flanges with standard dimensions for easy installation and leak-proof sealing.
- Cast Iron Body: Durable FC200 cast iron with anti-corrosion coating for freshwater service.
- Size Range DN50-DN200: Available in nominal diameters from 50mm to 200mm to fit various pipeline requirements.
- Linear Flow Control: Globe valve design provides precise throttling capability with minimal flow resistance when fully open.
- Replaceable Seat Ring: Easy maintenance – seat ring can be replaced without removing the valve from the pipeline.
Technical Parameters (Sample – DN100)
| Parameter | Value |
| Nominal Diameter | DN100 (4 inches) |
| Pressure Rating | 5K (0.7 MPa) |
| Flange Standard | JIS B2220 5K |
| Body Material | Cast Iron FC200 |
| Disc Material | Cast Iron or Bronze (optional) |
| Stem Material | Stainless Steel (SS410) |
| Seat Ring Material | Bronze or Stainless Steel |
| Test Pressure (Shell) | 1.05 MPa (1.5x rated) |
| Operating Temperature | -10°C to +80°C |
| Suitable Media | Fresh water, cooling water, low-viscosity fluids |
Advantages for Marine Applications
- Reliable Sealing: Metal-to-metal or soft-seat options available upon request, ensuring zero leakage at rated pressure.
- Corrosion Resistant: Internal and external anti-corrosion coating suitable for high-humidity marine environments.
- Easy Maintenance: The rising stem design allows for easy packing adjustment and gland maintenance without system shutdown.
- Worldwide Compatibility: JIS standard flanges match most Asian and international shipbuilding specifications.
- Customizable: Options for gear operator, locking device, indicator, or position feedback can be added according to customer needs.
Shanghai Zhibang Valve Manufacture Co., Ltd. has been serving the marine and industrial sectors since 2016. Our factory in Shanghai ensures strict quality control for every valve produced. With an annual export value of US$1-1.5 million, our products are shipped to major markets across six continents. We hold ISO9001 certification, which underscores our commitment to consistent quality and continuous improvement.
Each globe valve undergoes rigorous hydrostatic testing and seat leakage testing before shipment. We offer comprehensive technical support, including installation guidance and spare parts service. Our experienced sales team can assist with selecting the right valve for your freshwater line application, whether for new construction or retrofit projects.
Choose Shanghai Zhibang Valve for dependable performance and long service life. Contact us today for a quotation or to discuss your specific requirements. We ship from Shanghai, Guangzhou, Hong Kong, or Beijing ports, ensuring timely delivery to destinations worldwide.
Frequently Asked Questions
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Q: What is the maximum working pressure for this globe valve?
A: The valve is rated for 5K (0.7 MPa) at ambient temperature. For higher pressure applications, please consult our factory for customized solutions. -
Q: Can this valve be used for seawater?
A: This model is specifically designed for freshwater lines. For seawater service, we recommend our bronze or duplex stainless steel series to avoid corrosion. -
Q: What flange standards are compatible?
A: The valve comes with JIS B2220 5K flanges. Custom flanges (ANSI, DIN, etc.) are available upon request, but may require longer lead time. -
Q: Do you offer soft-seat or metal-seat versions?
A: Both options are available. Metal-seat (bronze or stainless steel) provides better durability, while soft-seat (PTFE) offers tighter shut-off. Please specify when ordering. -
Q: What is the typical lead time for DN100 size?
A: Standard lead time is 15-20 working days after order confirmation. Larger sizes (DN150-DN200) may take 25-30 working days. Express delivery can be arranged at extra cost. -
Q: How do I identify the valve open/closed status?
A: The rising stem clearly shows the valve position – stem extends when open, retracts when closed. Optional position indicators or limit switches are available. -
Q: Does the valve include mounting hardware and gaskets?
A: Bolts, nuts, and gaskets are included as standard for the flanged connection. If you require additional spare parts, please let us know. -
Q: What certifications do your valves have?
A: Our factory is ISO9001 certified. The valves are manufactured to JIS F7305 standard. Certificates of compliance or material test reports can be provided upon request.
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