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Help Center316L Trim JIS F7305 Marine Globe Valve, Ductile Iron, 10K, DN80-DN150 Flanged, Seawater Resistant
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Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our premium 316L Trim JIS F7305 Marine Globe Valve, engineered for demanding seawater and marine environments. As a dedicated manufacturer since 2016, we have refined our production processes to deliver valves that combine robust ductile iron bodies with corrosion-resistant 316L stainless steel trim, ensuring long-lasting performance in harsh offshore and shipboard applications. Our commitment to quality is backed by ISO9001 certification, and our products have been trusted by customers across North America, Europe, Asia, and beyond.
This globe valve is designed to meet the strict Japanese Industrial Standard JIS F7305, with a pressure rating of 10K and flanged connections in sizes from DN80 to DN150. The use of high-quality ductile iron for the body provides excellent strength and impact resistance, while the 316L stainless steel trim (including disc, seat, and stem) offers superior resistance to chloride-induced corrosion, making it ideal for seawater handling systems such as ballast water, cooling water, and fire-fighting lines.
Key Features & Technical Specifications
- Body Material: Ductile Iron (GGG40 / QT400-18) – high tensile strength, good ductility, and impact resistance.
- Trim Material: 316L Stainless Steel – excellent pitting and crevice corrosion resistance in chloride environments.
- Standard: JIS F7305 – ensures dimensional interchangeability and performance for marine applications.
- Pressure Rating: 10K (approx. 1.0 MPa / 145 psi) – suitable for low to medium pressure seawater systems.
- Size Range: DN80, DN100, DN125, DN150 – flanged ends per JIS B2220 (10K).
- Operation: Handwheel operated, with optional gear operator or actuator available upon request.
- Design Feature: Rising stem, bolted bonnet, renewable disc and seat rings for easy maintenance.
- Coating: Anti-corrosion epoxy painting (standard coat thickness > 250 µm) for additional protection in marine atmospheres.
Detailed Parameter Table
| Parameter | Specification |
| Standard | JIS F7305 |
| Pressure Rating | 10K (1.0 MPa) |
| Nominal Diameter | DN80 / DN100 / DN125 / DN150 |
| Flange Standard | JIS B2220 10K |
| Body Material | Ductile Iron (ASTM A536 65-45-12 / QT400-18) |
| Trim Material | 316L Stainless Steel (Disc, Seat, Stem) |
| Test Pressure (Shell) | 1.5 MPa |
| Test Pressure (Seat) | 1.1 MPa |
| Design Temperature | -10°C to +80°C |
| Applicable Medium | Seawater, Fresh Water, Brine, Neutral Liquids |
Advantages for Marine Applications
- Superior Corrosion Resistance: The 316L trim is specifically chosen for seawater service, resisting pitting and crevice corrosion common in chloride-rich environments.
- Reliable Sealing: Precision-machined disc and seat surfaces ensure bubble-tight shut-off, minimizing leakage risk in critical marine systems.
- Easy Maintenance: The bolted bonnet and renewable trim allow for quick in-line repairs, reducing downtime.
- Robust Construction: Ductile iron body withstands mechanical shocks and vibrations encountered on ships and offshore platforms.
- Full Compliance: Designed to JIS F7305, ensuring compatibility with existing Japanese-standard piping systems.
Each valve undergoes rigorous hydrostatic and seat leakage testing before shipment. Our production is backed by a dedicated quality management system, and we offer customization options such as extended stems, different flange drillings, or special coatings to meet specific project requirements. Whether you need a standard DN80 globe valve or a larger size, our team can accommodate your order with competitive lead times.
Trust & Experience: Since our establishment in 2016, Shanghai Zhibang Valve has grown into a reliable manufacturer with an annual export value of US$1 million to US$1.5 million. Our products are shipped worldwide through major ports including Shanghai, Guangzhou, Hong Kong, and Beijing. We have successfully supplied marine valves to clients across North and South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. With ISO9001 certification and a strong focus on customer satisfaction, we ensure every valve meets the highest standards of quality and durability.
Choose Shanghai Zhibang Valve for your next marine project. Our 316L Trim JIS F7305 Globe Valve combines dependable performance, long service life, and cost-effectiveness. Contact us today for a quote or technical consultation. Let us help you keep your seawater systems running smoothly.
Frequently Asked Questions
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Q: What is the difference between JIS F7305 and other globe valve standards?
A: JIS F7305 is a Japanese industrial standard specifically for marine globe valves. It defines dimensions, pressure-temperature ratings, and material specifications that ensure compatibility with Japanese shipbuilding practices. Compared to ISO or ANSI standards, JIS F7305 often has different face-to-face dimensions and flange drilling patterns. -
Q: Can this valve be used for fresh water or other media besides seawater?
A: Yes, it is suitable for fresh water, brine, and neutral liquids. However, for non-corrosive media, you may consider a lower-cost alternative. The 316L trim is especially beneficial in chloride-containing environments. -
Q: What is the maximum operating temperature?
A: The standard design temperature range is -10°C to +80°C. For higher temperatures, please consult our engineering team for possible material upgrades. -
Q: Do you provide actuators or gearboxes for this valve?
A: Yes, we can supply handwheel operation as standard, and optional gear operators or electric/pneumatic actuators are available upon request. Please specify your automation needs when ordering. -
Q: How do you ensure the valve is seawater resistant?
A: Seawater resistance is achieved through the combination of a ductile iron body with epoxy coating and 316L stainless steel trim. The coating protects the external surface, while the trim materials resist internal corrosion. All valves are tested for sealing and pressure performance. -
Q: What is the lead time for DN80 to DN150 sizes?
A: Typical lead time for standard sizes is 15-25 working days after order confirmation. Customized orders may take longer. We ship from Shanghai, Guangzhou, Hong Kong, or Beijing. -
Q: Can you provide a certificate of material (MTC) for the 316L trim?
A: Yes, we can provide material test certificates for the 316L components upon request. Additionally, ISO9001 quality documents are available. -
Q: Is the valve suitable for below-deck installation in ships?
A: Absolutely. Its compact design and robust construction make it ideal for tight spaces in engine rooms, pump rooms, and other shipboard locations. The rising stem design requires adequate clearance above the valve.
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