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Home > Industrial Equipment & Components > Valve > Butterfly Valve > CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa

CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa

CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa thumbnail-3

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CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa photo-1

CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa photo-2

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CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa photo-4

CB/T3191 Standard Marine Ball Valve for Low Temperature Applications, Working Pressure PN1.6-4.0MPa photo-5

Product Spotlights

CB/T3191 standard marine ball valve designed for reliable low-temperature applications (PN1.6-4.0MPa). Features robust construction with materials selected for cold impact resistance, bubble-tight PTFE seals, and corrosion-resistant options. Offers manual or automated operation, various connections, and global compliance. Ensures safety, durability, and low lifetime cost for shipbuilding and offshore 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

Working Pressure:

PN1.6-4.0 MPa

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

Working Pressure PN1.6-4.0 MPa

Body Material Carbon Steel, Stainless Steel (Optional)

Seat Material PTFE, Reinforced PTFE

Connection Type Flanged, Threaded

Temperature Range Low Temperature Applications

Operation Manual, Pneumatic, Electric (Optional)

Size Range DN15 to DN300 (Customizable)

Certification ISO9001 Quality Management System

As a professional manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance fluid control solutions for demanding maritime environments. Our CB/T3191 Standard Marine Ball Valve for Low Temperature Applications is engineered to deliver exceptional reliability and sealing performance under challenging conditions, making it a trusted component for shipbuilding, offshore platforms, and cryogenic systems. With an annual export value reflecting our global reach across markets from North America to Southeast Asia, we combine rigorous ISO9001-certified manufacturing processes with deep industry knowledge to offer valves that meet precise technical specifications and ensure operational safety.

This marine ball valve is designed to comply with the CB/T3191 standard, specifically tailored for low-temperature service where material toughness and leak-proof operation are critical. Its robust construction and optimized design address the common pain points of valve failure in cold environments, providing ship owners and system integrators with a durable and maintenance-friendly solution.

Key Features and Technical Advantages:

Superior Low-Temperature Performance: The valve body and key components are manufactured from materials selected for their excellent impact resistance and mechanical stability at low temperatures, preventing brittleness and ensuring reliable operation in sub-zero conditions.
Robust Pressure Handling: Rated for working pressures from PN1.6 to 4.0 MPa, this valve maintains a tight seal and structural integrity across a wide pressure range, suitable for various shipboard piping systems including ballast, cooling, and fuel lines.
Bubble-Tight Sealing: Utilizes advanced seat materials such as PTFE or reinforced PTFE, which provide excellent sealing characteristics and low friction, ensuring zero leakage even after prolonged cycles and thermal cycling.
Corrosion Resistance: Available in carbon steel with protective coatings or stainless steel options, the valve offers enhanced resistance to seawater corrosion, marine atmospheres, and other corrosive media, extending service life.
Easy Operation and Maintenance: Features a standard wrench-operated design with a clear open/close indicator. Optional pneumatic or electric actuators are available for remote automation and integration into control systems, reducing manual labor.
Versatile Configurations: The valve comes in various connection types (flanged, threaded) and sizes (typically DN15 to DN300), allowing for flexible integration into existing piping layouts. Custom specifications can be accommodated upon request.

Technical Specifications Table:

Parameter	Specification
Product Standard	CB/T3191 (China Ship Standard)
Nominal Pressure (PN)	1.6, 2.5, 4.0 MPa
Valve Body Material	WCB Carbon Steel, CF8/CF8M Stainless Steel
Ball & Stem Material	Stainless Steel (Standard)
Seat & Seal Material	PTFE, Reinforced PTFE, RPTFE
Temperature Range	Designed for Low-Temperature Applications (Specific range available upon request)
Connection Standard	Flanged: GB/T 9113, JIS B2220; Threaded: NPT, BSPT/BSPP
Operation Type	Manual Lever, Gear Operator, Pneumatic Actuator, Electric Actuator
Fire Safe Design	Optional according to API 607/API 6FA standards

Benefits for Your Business:

Enhanced System Safety: Reliable performance in critical low-temperature marine applications reduces the risk of leaks and system failures, protecting valuable assets and the environment.
Reduced Lifetime Cost: Durable construction and high-quality materials minimize the need for frequent repairs or replacements, leading to lower total cost of ownership.
Compliance and Compatibility: Adherence to the CB/T3191 standard ensures the valve meets recognized maritime industry requirements, facilitating approval processes for shipbuilding and repair projects.
Global Supply Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and efficient logistics to support your projects worldwide, from Eastern Europe to Oceania.

Backed by our ISO9001 quality management system and nearly a decade of manufacturing expertise, Shanghai Zhibang Valve stands as a reliable partner for your marine valve needs. Our consistent annual export performance and presence in diverse global markets testify to the trust placed in our products. Choosing our CB/T3191 Marine Ball Valve means investing in a component built for resilience, precision, and long-term value. Contact us today to discuss your specific requirements, request a detailed quotation, or learn more about how our valves can enhance the reliability of your low-temperature marine systems.

Frequently Asked Questions (FAQ):

Q: What does the CB/T3191 standard signify for this valve?
A: CB/T3191 is a Chinese national standard specifically for ship valves. It defines the design, material, manufacturing, testing, and inspection requirements for valves used in marine systems, ensuring they are fit for purpose in the demanding maritime environment, including aspects like pressure rating, corrosion resistance, and operational safety.
Q: What specific low-temperature range is this valve suitable for?
A: The valve is engineered for low-temperature applications common in marine service, such as handling chilled water, liquefied gases, or cold climates. The exact minimum temperature rating depends on the selected body and seal materials. Please provide your specific operating temperature for a precise material recommendation.
Q: Can this valve be used with media other than water?
A: Yes. While ideal for seawater, ballast water, and cooling systems, it can also handle oils, fuels, and other compatible fluids in low-temperature settings. The compatibility depends on the specific media's chemical properties and the valve's material selection. Consultation is advised for aggressive chemicals.
Q: Are actuators available for automated control?
A: Absolutely. The valve can be fitted with pneumatic (on/off or modulating) or electric actuators as an optional feature. This allows for integration into automated control panels or remote monitoring systems on vessels or offshore installations.
Q: What are the available connection standards for international projects?
A> We offer flanged connections per international standards like ANSI/ASME, JIS, and DIN, as well as threaded connections (NPT, BSP). Please specify your piping standard during inquiry to ensure perfect compatibility.
Q: How do you ensure quality control during manufacturing?
A> Our production follows the ISO9001 quality management system. Each valve undergoes rigorous testing, including shell test, seat test (bubble-tight), and low-temperature impact tests where applicable, to verify performance against design specifications before shipment.
Q: What is the typical lead time for an order?
A> Lead time varies based on order quantity, valve size, and configuration (standard vs. customized). For standard specifications, we maintain inventory for common sizes. A production schedule will be provided upon order confirmation.
Q: Do you provide technical support and documentation?
A> Yes. We provide comprehensive technical datasheets, material certificates, test reports, and installation manuals. Our engineering team is available to offer technical support for selection, installation, and troubleshooting.