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Stainless Steel 316 Marine Ball Valve Flanged per CB/T3191, Gear Operated for Seawater Lines
Product Spotlights
Marine-grade ball valve crafted from corrosion-resistant Stainless Steel 316, compliant with CB/T3191 standard. Features a robust flanged connection and gear operator for easy, high-torque control in demanding seawater applications. Designed for reliability and long service life in shipboard piping systems, backed by ISO9001 manufacturing quality.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Seawater Lines / Marine Piping Systems
Material:
Stainless Steel 316 (Body, Ball, Stem)
Connection Type:
Flanged (per CB/T3191 standard)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Seawater Lines / Marine Piping Systems
Material
Stainless Steel 316 (Body, Ball, Stem)
Connection Type
Flanged (per CB/T3191 standard)
Operation Method
Gear Operated
Pressure Rating
Customizable (e.g., PN10, PN16, PN25)
Size Range
Available upon request (e.g., DN15 to DN300)
Seat Material
PTFE or alternative resilient materials
Design Standard
CB/T3191 for marine applications
As a dedicated manufacturer with over 8 years of expertise in industrial valve production, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our specialized Stainless Steel 316 Marine Ball Valve with Flanged Ends and Gear Operation. Engineered specifically for the demanding environments of marine and offshore applications, this valve is a robust solution for controlling seawater, ballast, and other corrosive fluid lines on vessels and maritime infrastructure. Our commitment to quality, backed by ISO9001 certification, ensures every valve delivers reliable performance and longevity, safeguarding your critical marine systems against the harsh effects of saltwater corrosion and operational stress.
This valve is designed to meet the precise requirements of shipbuilding and marine engineering, adhering to the Chinese marine standard CB/T3191. Its construction from Stainless Steel 316 provides superior resistance to pitting and crevice corrosion in chloride-rich environments, making it an essential component for safe and efficient vessel operation.
Key Features & Technical Advantages:
- Superior Corrosion Resistance: The use of Stainless Steel 316 (UNS S31600) for all wetted parts offers excellent resistance to seawater, brackish water, and various chemicals, significantly extending service life compared to standard stainless steel grades.
- Robust Gear Operation: The integrated gear operator provides high mechanical advantage, allowing for smooth and effortless opening and closing of larger-size valves, even under high differential pressure. This reduces operator fatigue and enhances safety during manual operations.
- Marine-Specific Design Standard: Manufactured in compliance with CB/T3191, this valve meets the stringent requirements for dimensions, materials, and testing specific to marine applications, ensuring compatibility and reliability within shipboard piping systems.
- Flanged Connection for Secure Installation: The flanged ends per relevant standards ensure a leak-proof, bolted connection to the pipeline, providing structural integrity and ease of maintenance or replacement.
- Bubble-Tight Shutoff: Precision-machined ball and seat ensure a reliable, bubble-tight seal in both directions, preventing leakage and ensuring precise flow control for critical seawater systems like cooling, firefighting, or ballast.
- Low Maintenance & High Durability: The simple quarter-turn operation and robust construction minimize wear. Stainless steel construction reduces the need for protective coatings and frequent maintenance associated with carbon steel valves in marine environments.
Technical Specifications & Options:
| Parameter | Specification / Option |
| Body & Trim Material | Stainless Steel 316 (Standard) |
| Ball & Stem Material | Stainless Steel 316 |
| Seat Seal Material | Reinforced PTFE (Standard), other resilient materials available |
| Connection Standard | Flanged per CB/T3191, other flange standards (ANSI, DIN, JIS) optional |
| Operation | Gear Operator (Standard), Lever, Pneumatic, or Electric Actuator optional |
| Pressure Rating | PN10, PN16, PN25, Class 150, Class 300 (Customizable) |
| Size Range (Nominal Diameter) | Typically from DN15 (1/2") to DN300 (12"), other sizes available upon request |
| Temperature Range | -20°C to +200°C (with PTFE seats), subject to specific media and pressure |
| Design & Test Standards | CB/T3191, GB/T12237, API 608. Shell & Seat tests per relevant standards. |
Benefits for Your Marine Operations:
- Enhanced System Reliability: Minimizes the risk of valve failure in critical seawater lines, preventing costly downtime and potential safety hazards at sea.
- Reduced Lifecycle Cost: The corrosion-resistant materials drastically reduce replacement frequency and maintenance costs over the valve's lifespan.
- Operational Safety & Ease: The gear operator allows for safe manual control of high-torque valves, protecting personnel and equipment.
- Global Supply Compatibility: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, and a proven export track record to markets across North America, Europe, Asia, and beyond, we ensure timely and efficient delivery to shipyards and marine service providers worldwide.
Shanghai Zhibang Valve combines manufacturing rigor with global market understanding. Established in 2016, we have grown to serve a diverse international clientele, with an annual export value reflecting our commitment to quality and customer satisfaction. Our ISO9001-certified processes govern every stage of production, from material sourcing to final testing. When you choose our Stainless Steel 316 Marine Ball Valve, you are not just purchasing a component; you are investing in a reliable, standards-compliant solution backed by a manufacturer with a solid global footprint. Contact us today to discuss your specific requirements for seawater line valves and experience the Zhibang difference in quality and service.
Frequently Asked Questions (FAQ):
-
Q: Why is Stainless Steel 316 preferred over 304 for marine ball valves?
A: Stainless Steel 316 contains molybdenum, which provides significantly higher resistance to chloride-induced pitting and crevice corrosion, common in seawater. This makes SS316 a more durable and reliable choice for long-term marine service. -
Q: Can this valve be used with fluids other than seawater?
A: Yes, while designed for seawater, its SS316 construction makes it suitable for a wide range of corrosive media, including certain chemicals, brackish water, and treated wastewater, depending on concentration and temperature. Please consult us for specific media compatibility. -
Q: Is the gear operator included as standard?
A: Yes, for the valve sizes where manual operation requires high torque, a gear operator is provided as the standard operation method. For smaller sizes or specific requests, lever operation or actuation (pneumatic/electric) can be offered. -
Q: What flange standards do you offer besides CB/T3191?
A> We can manufacture valves with flanges to various international standards, including ANSI B16.5, DIN, JIS, and others, based on your piping system specifications. This ensures seamless integration into both new builds and retrofit projects. -
Q: What pressure classes are available?
A> Common pressure ratings include PN10/16/25 or Class 150/300. The appropriate pressure class depends on your system's design pressure. We can advise and manufacture valves to meet your specific pressure requirements. -
Q: Do you provide documentation and certification?
A> Yes, we provide material certificates, product test reports (including shell and seat tests), and a certificate of conformity. Documentation packages can be tailored to meet project or classification society requirements. -
Q: What is the typical lead time for an order?
A> Lead times vary based on order quantity, size, and specific configurations. Standard sizes and common specifications typically have shorter lead times. We provide estimated delivery schedules upon quotation to facilitate your project planning. -
Q: How do you ensure quality control?
A> Our quality management system is ISO9001 certified. We implement strict controls at every stage: incoming material inspection, in-process dimensional checks, and final pressure and performance testing before shipment.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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