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Help Center5K JIS F7305 Marine Globe Valve, Cast Iron, Epoxy Coated, Flanged Connection, Suitable for Freshwater Pipelines, BV
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Shanghai Zhibang Valve Manufacture Co., Ltd., established in 2016, is a professional manufacturer dedicated to producing high-quality marine valves. Our 5K JIS F7305 Marine Globe Valve is engineered for reliable performance in freshwater pipelines aboard ships and offshore platforms. Featuring a durable cast iron body with an epoxy coating for corrosion resistance, this valve offers a flanged connection for easy installation and maintenance. With over one million USD annual export value and ISO9001 certified quality management, we ensure every valve meets rigorous industry standards.
Our globe valves are designed to regulate flow precisely, providing tight shut-off and minimal pressure drop. The 5K pressure rating (0.5 MPa) makes them suitable for low-pressure freshwater systems commonly found in marine environments. Whether you need a valve for ballast systems, cooling water lines, or domestic water supply, this product delivers consistent performance and longevity.
Key Features
- Cast Iron Body: Robust and impact-resistant, suitable for harsh marine conditions.
- Epoxy Coated: Internal and external coating prevents rust and chemical attack, extending service life.
- Flanged Connection: Conforms to JIS F7305 flange standards, ensuring leak-proof joints with standard piping.
- 5K Pressure Rating: Optimized for low-pressure freshwater applications (max 0.5 MPa at ambient temperature).
- Straight Through Flow Path: Reduces turbulence and pressure loss compared to angle globe valves.
- Bolted Bonnet: Allows easy access for maintenance and seat replacement.
- Renewable Seat Disc: Interchangeable stainless steel disc ensures long-term tight shut-off.
- Multiple Sizes: Available from DN15 to DN300, with custom dimensions upon request.
Technical Specifications
| Standard | JIS F7305 |
| Pressure Rating | 5K (0.5 MPa / 73 psi) |
| Body Material | Cast Iron (GG25 or equivalent) |
| Disc Material | Stainless Steel (304) – renewable |
| Seat Material | Bronze or Stainless Steel |
| Stem Material | Stainless Steel (304) |
| Coating | Epoxy, minimum 250 microns thickness |
| Connection | Flanged, raised face (RF) to JIS B2220 |
| Working Temperature | -10°C to +80°C (for freshwater) |
| Test Pressure | Body: 1.0 MPa / Seat: 0.75 MPa |
Performance Advantages
This globe valve is designed to excel in marine freshwater systems. The straight-through design minimizes fluid resistance, ensuring efficient flow when fully open. The epoxy coating not only protects against freshwater corrosion but also provides a smooth surface that reduces scaling. The renewable seat disc feature means you can replace the sealing surface without replacing the entire valve, significantly lowering maintenance costs over the product’s lifecycle. Furthermore, the bolted bonnet construction allows for quick internal inspections and repairs, reducing vessel downtime.
Our valves undergo strict factory testing: each unit is hydrostatically tested at 1.5 times the rated pressure for the body and 1.1 times for the seat. This ensures leak-free performance upon installation. The flanged connection conforms to JIS B2220 standard, making it compatible with existing piping systems in Asian-built ships. We also offer optional handwheel locking devices and position indicators for remote operation.
Trust & Reliability
Shanghai Zhibang Valve Manufacture Co., Ltd. has been a trusted supplier since 2016, with annual export value between US$1 million and US$1.5 million. Our products are shipped worldwide via Shanghai, Guangzhou, Hong Kong, and Beijing ports. We serve major markets including North America, South America, Europe, Southeast Asia, Africa, and Oceania. Our quality management system is certified to ISO9001, ensuring consistent product quality and traceability. Each valve is accompanied by a material certificate and test report as standard. We understand the critical nature of marine applications and stand behind our products with responsive after-sales support. Contact us today for competitive pricing and reliable delivery.
Frequently Asked Questions
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Q: Is this valve suitable for seawater?
A: This valve is specifically designed for freshwater pipelines. For seawater applications, we recommend our bronze or duplex stainless steel series (please inquire separately). -
Q: What is the maximum operating pressure for a 5K valve?
A: The 5K rating corresponds to 0.5 MPa (73 psi) at ambient temperature. Higher pressure might be possible with temperature derating – consult our technical team for specific conditions. -
Q: Can the epoxy coating color be customized?
A: Yes, we offer various RAL colors for the epoxy coating upon request. Standard color is blue or black. -
Q: Do you provide actuators for remote control?
A: While this valve comes with a manual handwheel, we can supply electric or pneumatic actuators as optional accessories. Please specify your requirements. -
Q: What flange standards does this valve comply with?
A: The valve flanges are machined to JIS B2220 5K specification. For other flange standards (e.g., DIN, ANSI), custom machining is available. -
Q: How long is the warranty period?
A: We offer a standard 12-month warranty from the date of shipment. Extended warranty can be negotiated for large contracts. -
Q: Are spare parts readily available?
A: Yes, we stock renewable seat discs, stem packing, and gaskets for all standard sizes. Replacement parts can be shipped within 3-5 working days. -
Q: Do you provide third-party inspection?
A: We welcome inspection by classification societies (e.g., BV, DNV, Lloyd’s) at the buyer’s request. Additional charges may apply.
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