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Help CenterMarine Straight Globe Valve JIS F7305, Cast Iron, 5K/10K Pressure, DN50-DN200, Flanged Ends
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Shanghai Zhibang Valve Manufacture Co., Ltd, established in 2016, is a professional manufacturer dedicated to providing high-quality marine valves. Our JIS F7305 Marine Straight Globe Valve is designed for precise flow control in demanding marine environments. Made from durable cast iron and available in 5K/10K pressure ratings, this valve ensures reliable shut‑off and throttling performance. With flanged ends and a size range from DN50 to DN200, it seamlessly integrates into existing piping systems, offering excellent corrosion resistance and long service life.
Key Features & Technical Specifications
- Material: Cast iron (GG25) with optional epoxy coating for enhanced corrosion resistance.
- Pressure Rating: Available in JIS 5K and 10K classes, suitable for low to medium pressure marine applications.
- Size Range: DN50, DN65, DN80, DN100, DN125, DN150, DN200. Custom sizes available upon request.
- Connection: Flanged ends according to JIS B2238, ensuring easy installation and leak‑tight joints.
- Operation: Manual handwheel with rising stem; optional gearbox or electric actuator.
- Seat Material: Cast iron or stainless steel (optional) for extended wear resistance.
- Design Standard: Complies with JIS F7305, ensuring interchangeability and consistent quality.
- Testing: 100% hydrostatic shell and seat test; optional low‑pressure air test.
| Parameter | Specification |
|---|---|
| Standard | JIS F7305 |
| Material – Body, Bonnet, Disc | Cast Iron (GG25) |
| Stem Material | Stainless Steel |
| Pressure Rating | 5K / 10K (JIS) |
| Size Range | DN50 – DN200 (2" – 8") |
| End Connection | Flanged (JIS B2238) |
| Temperature Range | -10°C to +200°C |
| Application | Marine ballast, cooling water, fuel oil, fire‑fighting, and general piping |
The straight‑pattern globe valve design offers lower flow resistance compared to angle‑type valves, making it ideal for throttling and shut‑off duties. The cast iron construction provides excellent mechanical strength and resistance to seawater corrosion when properly coated. All valves are manufactured under a strict ISO 9001 quality management system, ensuring consistent dimensional accuracy and pressure integrity.
Customer Benefits
- Reliable Flow Control: Precision‑machined disc and seat ensure tight shut‑off and smooth throttling.
- Long Service Life: Cast iron body resists impact and vibration; stainless steel stem prevents galling.
- Easy Installation: Flanged ends conform to JIS standard, simplifying bolting to mating flanges.
- Cost‑Effective: Optimized casting process reduces material waste and overall cost without sacrificing quality.
- Global Compatibility: Common size range and pressure classes suit most marine systems worldwide.
- Flexible Customization: Available with different seat materials, handwheel types, and coatings.
As a manufacturer with annual export value of US$1–1.5 million, we serve markets across North America, South America, Europe, Asia, Africa, and Oceania. Our products are shipped from Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring fast delivery to major ports. With ISO 9001 certification and a team of experienced engineers, we guarantee consistent product quality and technical support. Whether you need a standard valve or a customized solution, Shanghai Zhibang Valve is your trusted partner for marine valves.
Frequently Asked Questions
Q1: What is the difference between 5K and 10K pressure ratings?
A: 5K corresponds to a working pressure of approximately 0.5 MPa, while 10K is about 1.0 MPa. Choose 5K for lower pressure systems and 10K for higher pressure applications.
Q2: Can this valve be used for seawater service?
A: Yes, standard cast iron is suitable for fresh water and light marine environments. For seawater, we recommend an epoxy coating or a bronze trim option to enhance corrosion resistance.
Q3: Are the flanges compatible with other JIS flange standards?
A: The flanges are manufactured to JIS B2238, which is the standard for 5K/10K flanges. They are interchangeable with other JIS B2238 flanges of the same pressure class.
Q4: What is the lead time for a standard DN100 valve?
A: Typically 15–25 working days for standard sizes. Large quantities or custom options may require additional time. Please contact our sales team for exact delivery.
Q5: Do you provide an actuator or gearbox?
A: Yes, we offer handwheel operation as standard. Electric, pneumatic, or hydraulic actuators and gearboxes are available as optional add‑ons. Please specify your requirements.
Q6: Is the valve tested before shipment?
A: Yes, every valve undergoes a hydrostatic shell test at 1.5 times the rated pressure and a seat leakage test. A test certificate is provided upon request.
Q7: What is the warranty period?
A: We offer a 12‑month warranty from the date of shipment against manufacturing defects. Extended warranty is available for bulk orders.
Q8: Can you supply other sizes beyond DN200?
A: Yes, we can produce larger sizes up to DN300 with the same design; please contact us for specific dimensions and pressure ratings.
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