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Home > Industrial Equipment & Components > Valve > Butterfly Valve > CB/T3191 Standard Marine Ball Valve With Manual Lever Handle, DN50 Size

CB/T3191 Standard Marine Ball Valve With Manual Lever Handle, DN50 Size

CB/T3191 Standard Marine Ball Valve With Manual Lever Handle, DN50 Size thumbnail-3

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CB/T3191 Standard Marine Ball Valve With Manual Lever Handle, DN50 Size photo-4

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Product Spotlights

CB/T3191 compliant marine ball valve in DN50 size. Features a manual lever handle for easy quarter-turn operation. Constructed with robust materials like cast steel for harsh marine environments. Offers reliable sealing with PTFE seats for water, fuel, and air systems. Available with flanged or threaded ends for versatile installation. A cost-effective, low-maintenance solution for shipboard flow control.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Application:

Other, Marine and Shipbuilding Systems

Product Standard:

CB/T3191

Valve Type:

Ball Valve

Contact Supplier Request Quote Chat Now

Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Application Other, Marine and Shipbuilding Systems

Product Standard CB/T3191

Valve Type Ball Valve

Connection Size DN50 (2 inch)

Operation Type Manual Lever Handle

Material (Body) Cast Steel or Ductile Iron

Pressure Rating PN16, PN25, or Class 150

End Connection Flanged (RF, FF) or Threaded

Seat Material PTFE, Reinforced PTFE, or Metal

Brand Zhibang Valve

As a professional manufacturer with a strong commitment to maritime fluid control solutions, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our CB/T3191 Standard Marine Ball Valve with a Manual Lever Handle in DN50 size. Engineered to meet the rigorous demands of shipboard environments, this valve combines robust construction with reliable performance, ensuring safe and efficient operation for various piping systems on vessels. With our ISO9001 certified quality management system guiding every step of production, we deliver valves that shipbuilders and marine engineers can trust for critical applications. This DN50 ball valve is designed for straightforward on/off service, offering a durable and cost-effective solution for managing the flow of water, fuel, oil, and air in marine settings.

Core Features and Technical Advantages:

Compliant Maritime Design: Manufactured in strict accordance with the Chinese CB/T3191 standard for marine valves, ensuring compatibility and reliability for shipbuilding and repair projects.
Robust Construction for Harsh Environments: The valve body is typically crafted from high-grade cast steel or ductile iron, providing excellent resistance to corrosion, vibration, and the challenging conditions found at sea.
Efficient Manual Operation: The integrated manual lever handle allows for quick and easy 90-degree quarter-turn operation, enabling fast opening and closing. The handle design often includes a locking feature or can be padlocked for safety in specific positions.
Reliable Sealing Performance: Equipped with seats made from materials like PTFE (Polytetrafluoroethylene) or reinforced PTFE, which offer low friction, excellent chemical resistance, and a tight seal, minimizing leakage.
Versatile End Connections: Available with flanged ends (Raised Face or Flat Face) or threaded ends, providing flexible installation options to suit different piping system requirements onboard.
Compact and Space-Saving: The ball valve design is inherently compact, making it ideal for installations where space is limited within engine rooms, pump rooms, or other tight compartments on a ship.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	CB/T3191
Valve Type	Floating Ball Valve
Nominal Size (DN)	50 (2")
Pressure Rating	PN16, PN25, Class 150 (Options available)
Body Material	Cast Steel WCB, Ductile Iron, or other marine-grade alloys
Ball Material	Stainless Steel (e.g., SS304, SS316) or Chrome Plated
Seat Material	PTFE, Reinforced PTFE, Metal (Optional)
Stem Material	Stainless Steel
Operation	Manual Lever Handle (Lockable option)
End Connection	Flanged (RF/FF to GB, ANSI, JIS standards) or Threaded
Temperature Range	-20°C to +180°C (varies with seat material)
Applicable Media	Sea Water, Fresh Water, Fuel Oil, Lubricating Oil, Air, etc.

Benefits for Your Marine Projects:

Enhanced System Safety: The reliable sealing and sturdy construction minimize the risk of leaks, protecting valuable equipment and the marine environment.
Reduced Maintenance Downtime: Durable materials and a simple design contribute to long service life with minimal maintenance requirements, keeping your vessels operational.
Cost-Effective Fluid Control: Provides a dependable and economical solution for basic on/off flow control in numerous marine systems.
Simplified Inventory & Procurement: Compliance with the recognized CB/T3191 standard simplifies specification and sourcing for shipyards and marine service providers.

Backed by Shanghai Zhibang Valve's manufacturing expertise since 2016 and an annual export value reflecting our global reach across North America, South America, Europe, Asia, Africa, and Oceania, this CB/T3191 Marine Ball Valve represents a product of proven reliability. Our valves are shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics to your project site. Choosing our DN50 manual ball valve means selecting a component built for performance in the demanding marine industry. Contact us today to discuss your specific requirements, request a quotation, or learn more about our full range of marine valve solutions.

Frequently Asked Questions (FAQ)

Q: What does "CB/T3191" mean, and why is it important for this valve?
A: CB/T3191 is a Chinese national standard specifically for marine valves. It defines the design, materials, testing, and manufacturing requirements for valves used on ships. A valve marked with this standard is certified as suitable for marine applications, ensuring it meets the necessary safety and performance criteria for shipboard use.
Q: Is this valve suitable for controlling seawater flow?
A: Yes, when configured with appropriate body materials like cast steel with suitable coatings or stainless steel, and compatible seat materials like PTFE, this ball valve is commonly used for seawater, bilge water, and cooling water systems. Please specify the exact media when inquiring for a material recommendation.
Q: Can the manual lever handle be replaced or modified?
A: The lever handle is typically integrated or securely attached. While standard handles are durable, options for different handle lengths or lockable handles are often available upon request to meet specific operational or safety needs.
Q: What pressure classes are available for the DN50 size?
A: This valve is commonly available in pressure ratings such as PN16 and PN25 (metric) or Class 150 (imperial). The specific pressure rating for your order can be confirmed based on your system's design pressure.
Q: Are the flanges compatible with international standards like ANSI or JIS?
A: Yes, we can produce valves with flanges machined to various international standards, including ANSI, JIS, DIN, and GB, to ensure proper fit with your existing piping. The required flange standard should be specified at the time of order.
Q: What is the typical lead time for an order of these valves?
A: Lead time depends on order quantity and specific configuration (material, pressure rating, flange standard). Standard configurations may have shorter lead times, while customized options may require additional production time. We provide estimated lead times with every quotation.
Q: Do you offer any warranty on your marine ball valves?
A: Yes, we stand behind the quality of our products. Our valves come with a standard warranty against manufacturing defects. The specific warranty terms and duration can be provided in our sales contract.
Q: Can I request a sample before placing a bulk order?
A: Sample orders are often possible to evaluate product quality and compatibility. Please contact our sales team to discuss sample availability, cost, and shipping arrangements.