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Help CenterJIS F7363 Marine Gate Valve With Mill Test Report, DN50-DN300 Size Range
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As a professional manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance marine valves for global markets. Our JIS F7363 Marine Gate Valves are engineered to meet the rigorous demands of shipbuilding, offshore platforms, and marine piping systems. With an annual export value reflecting our commitment to quality and reliability, we provide valves that ensure safe and efficient fluid control in critical maritime applications. Each valve is backed by comprehensive Mill Test Reports, offering full traceability and peace of mind for engineers and procurement specialists.
Our valves are designed for durability and long service life in corrosive marine environments. The key features include:
- Robust Construction: Manufactured from materials selected for their resistance to seawater corrosion and high mechanical strength.
- Precise Sealing: The parallel wedge or solid wedge design ensures bubble-tight shut-off, preventing leaks in high-pressure systems.
- Smooth Operation: A rising stem mechanism with a handwheel or optional gear operator allows for easy opening and closing, even under high differential pressures.
- Full Port Design: Minimizes pressure drop and allows for the passage of pigs or cleaning tools, which is crucial for pipeline maintenance.
- Versatile Applications: Suitable for onboard seawater cooling systems, ballast lines, fuel oil lines, bilge systems, and general service on tankers, cargo ships, and offshore rigs.
The technical specifications for our standard range are detailed below. Custom configurations are available upon request to meet specific project requirements.
| Parameter | Specification |
|---|---|
| Design Standard | JIS F7363 |
| Size Range (Nominal Diameter) | DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300 |
| Pressure Class | 10K, 16K, 20K (Standard: 10K) |
| Face-to-Face Dimensions | As per JIS B2002 / JIS F7363 |
| Flange Standard | JIS B2210 / JIS B2220 |
| Test Pressure | Shell Test: 1.5 x Rated Pressure, Seat Test: 1.1 x Rated Pressure |
| Temperature Range | -20°C to 200°C (dependent on seat material) |
Choosing our valves provides several distinct advantages for your projects:
- Compliance Assurance: Strict adherence to JIS F7363 ensures compatibility with shipyard specifications and international marine standards.
- Reduced Maintenance: High-quality materials and precision machining lead to lower friction, reduced wear, and extended maintenance intervals.
- Supply Chain Confidence: The included Mill Test Report provides verified chemical composition and mechanical properties, simplifying your quality control and documentation process.
- Global Logistics Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we offer flexible and efficient delivery options to your nearest port worldwide.
Our manufacturing processes are governed by a ISO9001 certified quality management system, ensuring consistency and reliability in every batch. With products successfully supplied to markets across North America, South America, Europe, Asia, Africa, and Oceania, we have built a reputation for dependable performance in diverse climatic and operational conditions. Our experience serving the global marine industry allows us to understand the critical nature of valve reliability at sea. We invite you to leverage our manufacturing expertise and robust supply chain for your next marine valve requirement. Contact us today for a detailed quotation, technical data sheets, or to discuss custom valve solutions tailored to your specific application.
Frequently Asked Questions (FAQ)
Q1: What is the significance of the JIS F7363 standard for marine gate valves?
A1: JIS F7363 is a Japanese Industrial Standard specifically for marine steel gate valves. It defines the design, dimensions, materials, testing, and marking requirements, ensuring the valves are suitable for the harsh conditions and safety-critical applications found on ships and offshore installations.
Q2: What exactly is included in the Mill Test Report (MTR)?
A2: The MTR is a certificate provided by the steel mill. It details the chemical analysis and mechanical properties (like tensile strength and yield strength) of the raw material used for the valve body and other pressure-containing parts. This provides traceability and proof of material quality.
Q3: Can these valves be used for services other than seawater?
A3: Yes. While designed for marine environments, they are suitable for a variety of fluids including oil, fuel, air, and other non-aggressive media within the specified pressure and temperature ratings. Material selection can be adjusted based on the service fluid.
Q4: What are the available options for larger sizes or higher pressure classes?
A4: Our standard production covers DN50 to DN300 in 10K, 16K, and 20K classes. For sizes beyond DN300 or special pressure ratings, we offer custom manufacturing. Please contact our engineering team with your specific requirements.
Q5: Are the valves suitable for both above-deck and below-deck installations?
A5: Absolutely. The materials and construction comply with marine standards for various environments. For exterior installations, additional surface coatings or specific material grades can be specified to enhance corrosion resistance.
Q6: Do you offer actuated versions of these gate valves?
A6: Yes. While standard valves are handwheel operated, we can provide them fitted with electric, pneumatic, or hydraulic actuators for remote or automated control systems. Actuator selection depends on the available power source and required operating speed.
Q7: What is the typical lead time for an order?
A7: Lead time varies based on order quantity, size, and material specifications. Standard configurations typically have shorter lead times. We provide estimated delivery schedules upon receipt of your inquiry to help with your project planning.
Q8: How do you ensure packaging for overseas sea freight?
A8: Valves are carefully cleaned, dried, and preserved. They are then packaged in wooden crates or plywood boxes with waterproof lining to prevent rust and damage during long-distance ocean transport, ensuring they arrive in perfect condition.
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