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316 Stainless Steel CB/T3191 Manual Gear Marine Ball Valve for Saltwater Applications
Product Spotlights
Engineered for harsh saltwater environments using corrosion-resistant 316 stainless steel per CB/T3191 standard. Features a manual gear drive for reliable operation under pressure. Offers durability, marine system compatibility, and customizable specs from an ISO9001-certified manufacturer with global export experience.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Application:
Other, Saltwater/Marine Environments
Material:
316 Stainless Steel
Size Range:
Customizable (e.g., 1/2“ to 4“)
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Application
Other, Saltwater/Marine Environments
Material
316 Stainless Steel
Size Range
Customizable (e.g., 1/2“ to 4“)
Connection Type
CB/T3191 Standard
Operation
Manual Gear Drive
Certification
ISO9001 Quality Management
Port of Shipment
Shanghai, Guangzhou, Hongkong, Beijing
Main Markets
North America, South America, Europe, Asia, Africa
As a specialized manufacturer of marine valves, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our 316 Stainless Steel CB/T3191 Manual Gear Marine Ball Valve. Engineered specifically for demanding saltwater applications, this valve represents our commitment to providing reliable, durable, and corrosion-resistant solutions for the global marine industry. With our ISO9001-certified production processes and extensive experience since 2016, we deliver valves that meet the stringent requirements of shipbuilding, offshore platforms, and coastal infrastructure.
The core value of this product lies in its exceptional material selection and robust design. Utilizing 316 stainless steel, which offers superior resistance to chloride corrosion compared to standard 304 stainless steel, this valve is ideally suited for environments with high salinity, such as seawater cooling systems, ballast water management, and desalination plant piping. The manual gear operation provides precise control and reliable shut-off, even under high-pressure conditions, ensuring operational safety and efficiency.
Key Features & Technical Specifications:
- Premium Corrosion Resistance: The 316 stainless steel construction incorporates molybdenum, significantly enhancing its pitting and crevice corrosion resistance in chloride-rich environments like seawater. This material choice directly translates to longer service life and reduced maintenance costs.
- CB/T3191 Standard Compliance: Designed and manufactured according to the Chinese CB/T3191 standard for marine valves, ensuring compatibility with marine piping systems and meeting industry-recognized dimensional and performance criteria.
- Manual Gear Drive Mechanism: Equipped with a manual gear operator, this design allows for smooth and effortless opening and closing of the valve, even against high line pressures. The gear reduction provides greater torque application, making it suitable for larger valve sizes where handwheel operation might be insufficient.
- Robust Sealing Performance: Features high-quality sealing components (such as PTFE or reinforced elastomers) designed to withstand the corrosive nature of saltwater, providing a tight seal and preventing leakage in critical applications.
- Versatile Port Connections: Available with various end connections (flanged, threaded) to suit different piping layouts. Specific connection types and dimensions can be customized upon request to match your system requirements.
- Broad Application Scope: Primarily designed for saltwater applications, including but not limited to: seawater intake and discharge lines, cooling water systems for marine engines, ballast water systems, firefighting systems on vessels, and piping in offshore oil & gas platforms.
Detailed Technical Parameters (Common Specifications):
| Parameter | Description / Value |
|---|---|
| Primary Material (Body/Ball) | 316 Stainless Steel (ASTM A351 CF8M equivalent) |
| Design Standard | CB/T3191 (Chinese Marine Valve Standard) |
| Operation Type | Manual Gear Operator (Reduced Torque Required) |
| Pressure Rating | Customizable (e.g., PN16, PN25, ANSI Class 150/300) |
| Temperature Range | Suitable for typical marine fluid temperatures (e.g., -20°C to 150°C) |
| Seal Material (Typical) | PTFE or Enhanced Elastomers (for corrosion resistance) |
| Port Size Range | Available in various sizes (common range: DN15 to DN100) |
Advantages & Client Benefits:
- Enhanced Durability in Saltwater: The use of 316 stainless steel directly addresses the primary challenge in marine applications – corrosion. This leads to a valve that maintains its integrity and function over extended periods, reducing replacement frequency.
- Operational Reliability & Safety: The manual gear drive ensures that the valve can be operated securely under various pressure conditions, providing a reliable isolation point for system maintenance or emergency shutdown.
- Compliance & Compatibility: Adherence to the CB/T3191 standard guarantees that the valve fits seamlessly into marine piping systems designed according to similar specifications, simplifying installation and integration.
- Cost-Effectiveness: While offering premium material performance, our manufacturing efficiency and direct supply from the factory provide a competitive price point, offering a favorable balance between quality and investment.
- Global Supply Capability: With established export channels and experience serving markets across North America, South America, Europe, Asia, Africa, and Oceania, we can reliably deliver products to your location via major ports like Shanghai, Guangzhou, Hongkong, and Beijing.
Shanghai Zhibang Valve Manufacture Co., Ltd. stands behind this product with the solid foundation of an ISO9001 Quality Management System, ensuring consistent manufacturing quality from our establishment in 2016. Our annual export value of US$1 Million to US$1.5 Million reflects our active engagement and proven reliability in the international marine market. We have successfully supplied valves to diverse regions, including North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, and the Middle East, building a track record of satisfying global clients. Choosing our 316 Stainless Steel Marine Ball Valve means partnering with a dedicated manufacturer that combines material expertise, standard compliance, and operational reliability to deliver a solution specifically engineered to conquer the challenges of saltwater applications. Contact us today to discuss your specific requirements, obtain detailed quotations, or request customization options for your project.
Frequently Asked Questions (FAQ):
-
Q: Why is 316 stainless steel specifically recommended for saltwater applications instead of 304?
A: 316 stainless steel contains added molybdenum (2-3%), which significantly improves its resistance to pitting and crevice corrosion in chloride environments like seawater. 304 stainless steel, while corrosion-resistant, is more susceptible to attack in high-salinity conditions, making 316 the preferred choice for marine use. -
Q: What does "CB/T3191" standard mean, and is it compatible with international marine systems?
A: CB/T3191 is a Chinese national standard for marine valves, covering dimensions, materials, testing, and marking. It is widely recognized and used in shipbuilding within China and many international projects. Valves manufactured to this standard are designed to be compatible with marine piping systems and often meet equivalent functional requirements of other international standards. -
Q: How does the manual gear drive differ from a standard handwheel operation?
A: A manual gear drive incorporates a gear reduction mechanism between the operator's input and the valve stem. This allows the user to apply less force (torque) to achieve the same or greater turning force on the ball, making it easier to operate larger valves or valves under higher pressure. -
Q: Can this valve be customized for specific pressure ratings or port sizes?
A: Yes, as a manufacturer, we offer customization options. Pressure ratings (like PN16, PN25, ANSI Class) and port sizes (both nominal diameter and connection type - flanged or threaded) can be tailored to your project specifications. Please provide your detailed requirements for a customized solution. -
Q: What are the typical applications for this valve beyond general seawater piping?
A: Its corrosion resistance makes it suitable for seawater cooling systems for main and auxiliary engines, ballast water handling systems, fire main systems on ships, offshore platform seawater service lines, and even in coastal desalination plants or aquarium seawater systems. -
Q: What sealing materials are used, and are they suitable for saltwater?
A: We typically use PTFE (Teflon) or specially formulated elastomers for seals. These materials are selected for their excellent chemical resistance and durability in corrosive fluids like seawater, ensuring long-term sealing performance. -
Q: Does your company provide certifications or test reports for the valves?
A: Our manufacturing process is certified under the ISO9001 Quality Management System. Specific material test reports, pressure test certificates, or other documentation can be provided upon request to support your project's quality assurance needs. -
Q: What is your shipping capability and lead time for this product?
A: We ship from major Chinese ports including Shanghai, Guangzhou, Hongkong, and Beijing. Lead times depend on order quantity and specification (standard or customized). Standard items typically have shorter lead times. We can provide estimated schedules based on your inquiry.
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1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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