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Home > Industrial Equipment & Components > Valve > Butterfly Valve > CB/T3191 Marine Ball Valve With Mounting Pad, 2-Year Warranty, Mill Test Report Provided

CB/T3191 Marine Ball Valve With Mounting Pad, 2-Year Warranty, Mill Test Report Provided

CB/T3191 Marine Ball Valve With Mounting Pad, 2-Year Warranty, Mill Test Report Provided thumbnail-3

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CB/T3191 Marine Ball Valve With Mounting Pad, 2-Year Warranty, Mill Test Report Provided photo-4

CB/T3191 Marine Ball Valve With Mounting Pad, 2-Year Warranty, Mill Test Report Provided photo-5

Product Spotlights

CB/T3191 standard marine ball valve featuring an integrated mounting pad for secure, vibration-resistant installation on ships. Backed by a 2-year warranty and supplied with a Mill Test Report for material traceability. Constructed from marine-grade materials like cast steel or stainless steel for corrosion resistance in seawater applications. Ensures reliable flow control for ballast, cooling, and fire-fighting systems.

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

Key Specifications

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Standard:

CB/T3191

Application:

Other, Marine and Shipbuilding Systems

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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Standard CB/T3191

Application Other, Marine and Shipbuilding Systems

Valve Type Ball Valve

Mounting Feature With Mounting Pad

Warranty 2-Year Warranty

Documentation Mill Test Report Provided

Body Material Cast Steel, Stainless Steel, Bronze

Connection Type Flanged, Threaded, Welded

Pressure Rating PN16, PN25, PN40, Class 150, Class 300

Temperature Range -20°C to 200°C

As a professional valve manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance CB/T3191 Marine Ball Valve with Mounting Pad. Engineered for the demanding environments of marine and shipbuilding applications, this valve combines robust construction with practical design features to ensure reliable flow control and long-term durability. Our commitment to quality is backed by a 2-Year Warranty and comprehensive Mill Test Reports, providing you with the confidence and documentation required for critical marine projects worldwide.

This valve is designed to meet the specific needs of marine engineers and shipbuilders, offering superior sealing performance, ease of installation, and resistance to corrosive seawater conditions. We understand the importance of equipment reliability at sea, which is why every valve undergoes stringent quality checks before leaving our factory in Shanghai.

Key Features & Technical Advantages:

Integrated Mounting Pad: The built-in mounting pad provides a secure and stable foundation for installation, simplifying alignment and reducing stress on pipeline connections. This feature is particularly valuable in the vibration-prone environments of ships and offshore platforms.
CB/T3191 Standard Compliance: Manufactured in strict accordance with the Chinese CB/T3191 standard for marine valves, ensuring compatibility, performance, and safety for shipboard use.
Robust Construction & Material Options: The valve body is crafted from high-grade materials suitable for marine service. Common options include:
- Cast Steel: For general seawater and ballast systems.
- Stainless Steel (304/316): Offers excellent corrosion resistance for critical and corrosive media.
- Bronze: A traditional and reliable choice for various marine applications.
Superior Sealing System: Features reinforced PTFE seats and seals, or metal-seated designs for higher temperatures, ensuring bubble-tight shut-off and extended service life even with frequent operation.
Full Port Design: Minimizes pressure drop across the valve, allowing for efficient fluid transfer and easier passage of cleaning pigs in pipeline systems.
Blow-Proof Stem Design: The stem is securely designed to prevent blow-out under high pressure, enhancing operational safety for personnel and equipment.
Multiple End Connections: Available with flanged, threaded, or welded ends to seamlessly integrate into your existing piping configurations.
Extended Warranty & Documentation: Our confidence in product quality is demonstrated by the comprehensive 2-Year Warranty. Each valve is supplied with a Mill Test Report (MTR), detailing chemical composition and mechanical properties, which is essential for project documentation and quality audits.

Detailed Technical Specifications:

Parameter	Specification
Product Standard	CB/T3191
Valve Type	Ball Valve with Mounting Pad
Nominal Pressure (PN)	PN16, PN25, PN40 (Common)
Pressure Class (ASME)	Class 150, Class 300
Nominal Diameter (DN)	DN15 (1/2") to DN300 (12")
Temperature Range	-20°C to 200°C (depending on seat material)
Operation	Lever, Gearbox, Pneumatic/Hydraulic Actuator (optional)
Main Applications	Seawater cooling systems, Ballast systems, Bilge lines, Fuel oil systems, Fire-fighting systems, Cargo handling

Benefits for Your Marine Projects:

Enhanced Reliability: The combination of standard compliance, robust materials, and a proven design minimizes the risk of failure, ensuring uninterrupted operation of ship systems.
Simplified Installation & Maintenance: The integrated mounting pad reduces installation time and cost. The quarter-turn operation and accessible design facilitate quick maintenance and inspection.
Long-Term Cost Efficiency: Durable construction and reliable sealing reduce the frequency of repairs and replacements, lowering the total cost of ownership over the vessel's lifecycle.
Global Compliance & Acceptance: Supplied with full traceability documentation (MTR), our valves are readily accepted in shipyards and by classification societies worldwide, streamlining your procurement and approval processes.

With nearly a decade of manufacturing expertise since our establishment in 2016, Shanghai Zhibang Valve has grown into a trusted supplier with an annual export value ranging between US$1 Million and US$1.5 Million. Our products, shipped from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, have successfully served a vast network of clients across North America, South America, Europe, Asia, Africa, and Oceania. This global reach is a testament to the consistent quality and reliability of our marine valves. When you choose our CB/T3191 Marine Ball Valve, you are not just buying a component; you are investing in peace of mind backed by professional manufacturing, rigorous testing, and a solid warranty. Contact us today to discuss your specific requirements or to request a detailed quotation.

Frequently Asked Questions (FAQ):

Q: What is the primary purpose of the mounting pad on this ball valve?
A: The mounting pad serves as a stable, flat surface that allows for secure bolting of the valve to a support structure or bulkhead. This is crucial on ships to prevent movement and vibration-induced stress on the pipe connections, ensuring system integrity.
Q: Does compliance with CB/T3191 make this valve suitable for international shipbuilding projects?
A: Yes, absolutely. The CB/T3191 is a recognized Chinese national standard for marine valves. Many international shipyards and classification societies accept valves manufactured to this standard, especially when accompanied by full Mill Test Reports for material verification.
Q: What materials are typically used for the valve body, and how do I choose?
A: Common body materials include Cast Steel (WCB), Stainless Steel (CF8/CF8M), and Bronze. The choice depends on the fluid media (e.g., seawater, fuel, chemicals) and the required corrosion resistance. Our team can advise based on your specific application.
Q: Can this valve be supplied with an actuator for remote operation?
A: Yes, the valve can be configured with pneumatic, hydraulic, or electric actuators as an optional feature. This allows for integration into automated control systems on modern vessels.
Q: What does the 2-Year Warranty cover?
A: Our warranty covers defects in materials and workmanship under normal use and service conditions as specified, for a period of two years from the date of shipment. It demonstrates our confidence in the product's durability.
Q: Why is the Mill Test Report (MTR) important?
A: The MTR is a critical quality document from the material mill. It certifies the chemical composition and mechanical properties (like tensile strength, yield strength) of the metal used, providing traceability and proof that the materials meet the required specifications for marine-grade applications.
Q: What are the common pressure ratings available?
A: Standard pressure ratings include PN16, PN25, PN40 (metric) and Class 150, Class 300 (ASME). The appropriate rating should be selected based on your system's design pressure.
Q: Do you offer customization for special connection types or sizes?
A: As a manufacturer, we have the capability to offer customization. Non-standard sizes, special flange standards, or unique material requirements can be discussed and developed according to your project needs.