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Home > Industrial Equipment & Components > Valve > Butterfly Valve > CB/T3191 Standard Marine Ball Valve With Low Flow Resistance, DN100 Size

CB/T3191 Standard Marine Ball Valve With Low Flow Resistance, DN100 Size

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CB/T3191 Standard Marine Ball Valve With Low Flow Resistance, DN100 Size photo-1

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CB/T3191 Standard Marine Ball Valve With Low Flow Resistance, DN100 Size photo-4

CB/T3191 Standard Marine Ball Valve With Low Flow Resistance, DN100 Size photo-5

Product Spotlights

CB/T3191 standard marine ball valve in DN100 size, engineered for low flow resistance to optimize ship system efficiency. Features robust construction with corrosion-resistant materials for harsh marine environments. Offers reliable bubble-tight sealing, versatile manual/actuated operation, and optional fire-safe design. Backed by ISO9001 certified manufacturing for global maritime applications.

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
Company Profile
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Application Other, Marine and Shipbuilding Systems

Product Standard CB/T3191

Valve Type Ball Valve

Nominal Diameter (DN) 100

Connection Type Flanged (Standard)

Body Material Cast Steel or Ductile Iron

Seat Material PTFE or Reinforced PTFE

Operation Type Lever Handle, Gearbox, or Actuator

Pressure Rating PN16, PN25, or Class 150

Flow Characteristic Low Flow Resistance Design

As a professional manufacturer with a strong foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance fluid control solutions for demanding industrial and marine applications. Our CB/T3191 Standard Marine Ball Valve, DN100 size, is engineered to meet the rigorous requirements of shipbuilding and offshore industries, where reliability and efficiency are non-negotiable. This valve is designed with a specific focus on minimizing flow resistance, a critical factor in optimizing system performance and reducing operational energy costs. We combine robust manufacturing practices, backed by our ISO9001 quality management system, with a deep understanding of maritime standards to deliver a product that ensures long-term, trouble-free service in corrosive marine environments. Our commitment to quality is reflected in our annual export value and our ability to serve a diverse global market from key shipping ports.

Core Product Features & Technical Advantages:

Standard-Compliant Design: Manufactured in strict accordance with the Chinese CB/T3191 standard for marine valves, ensuring compatibility and reliability for shipbuilding projects, particularly in markets where this standard is specified or recognized.
Optimized Low Flow Resistance: The internal flow path and ball port are meticulously designed and polished to create a smooth, full-bore or near full-bore passage. This significantly reduces pressure drop across the valve, enhancing the overall efficiency of piping systems for seawater cooling, ballast, bilge, fuel, and other shipboard services.
Robust Construction for Marine Duty: The valve body is typically crafted from materials like cast steel (WCB) or ductile iron with appropriate corrosion-resistant coatings or linings (e.g., epoxy, zinc plating) to withstand saltwater, humidity, and other harsh marine conditions.
Superior Sealing Performance: Utilizes advanced seat materials such as PTFE (Teflon) or reinforced PTFE, which provide excellent chemical resistance, low friction, and reliable bubble-tight sealing even after numerous cycles, preventing leaks in critical systems.
Versatile Actuation Options: Available with a standard lever handle for manual operation. For larger systems or remote control, it can be equipped with gear operators or automated actuators (electric, pneumatic, or hydraulic), offering flexibility for various control schemes onboard.
Durable Stem Sealing: Features a multiple-layer stem packing (often graphite or PTFE-based) with a gland follower, allowing for adjustment to compensate for wear and maintain a leak-free stem seal over the valve's lifespan.
Fire-Safe Design Option: For applications involving flammable fluids, a fire-safe design is available. This includes secondary metal sealing seats that maintain sealing integrity in the event of a fire, even if the primary soft seats are damaged.
Easy Maintenance & Installation: The trunnion-mounted or floating ball design, along with a bolted body construction (e.g., two-piece or three-piece), allows for relatively easy in-line maintenance, seat replacement, and inspection without removing the entire valve from the pipeline.

Technical Specifications Table (Typical):

Parameter	Specification / Option
Product Standard	CB/T3191
Nominal Size (DN)	100
Pressure Rating	PN16, PN25, Class 150 (Customizable)
Connection Type	Flanged (RF, FF), as per standard
Body Material	Cast Steel (WCB), Ductile Iron, Stainless Steel (Optional)
Ball & Stem Material	Stainless Steel (e.g., SS304, SS316) or Chrome Plated
Seat & Seal Material	PTFE, Reinforced PTFE, Nylon, PEEK (Optional)
Operation	Lever Handle (Standard), Gear Operator, Actuator (Optional)
Temperature Range	-20°C to +180°C (varies with seat material)
Flow Characteristic	Full Port / Reduced Port (Specify), Low Resistance Design

Benefits for Your Project:

Enhanced System Efficiency: The low flow resistance design directly translates to lower pump energy requirements and reduced operational costs for the vessel's fluid systems.
Reliability in Critical Systems: Built to marine standards, this valve offers dependable performance in essential systems like ballast, firefighting, and cooling, contributing to vessel safety and operational readiness.
Reduced Maintenance Downtime: Durable materials and robust construction minimize the frequency of repairs and replacements, leading to higher availability of systems and lower lifecycle costs.
Global Supply Chain Support: With shipment capabilities from major ports like Shanghai, Guangzhou, and Hong Kong, we ensure timely delivery to shipyards and marine service providers worldwide, supporting tight project schedules.

Shanghai Zhibang's commitment to quality is institutionalized through our ISO9001 certification, governing every step from material sourcing to final testing. With an annual export value reflecting our global reach across continents from North America to Oceania, we have proven our capability to meet diverse international requirements. Our position in Shanghai, a global maritime hub, provides us with unique insights and supply chain advantages. Choosing our CB/T3191 DN100 Marine Ball Valve means selecting a component backed by a dedicated manufacturer's warranty, reliable logistics, and the technical support necessary for successful integration into your marine application. We invite you to contact us for detailed quotations, technical data sheets, or to discuss custom configurations for your specific project needs.

Frequently Asked Questions (FAQ):

What is the main advantage of the "low flow resistance" design in this ball valve?
The primary advantage is system efficiency. By minimizing the pressure drop as fluid passes through the valve, it reduces the load on pumps, which can lead to significant energy savings over time, especially in large-scale marine piping systems that operate continuously.
Is this valve suitable for use with seawater?
Yes, when configured with appropriate materials. We typically recommend a cast steel or stainless steel body with corrosion-resistant coatings, along with stainless steel (316) trim and PTFE seats, which together offer strong resistance to saltwater corrosion.
Can this CB/T3191 valve be used in non-marine applications?
Absolutely. While designed to marine standards, its robust construction and low resistance feature make it an excellent choice for any industrial application requiring reliable shut-off and low-pressure drop, such as in power plants, water treatment, or chemical processing (with compatible material selection).
What types of end connections are available for the DN100 size?
The standard connection is flanged, compliant with common standards like GB, ANSI, or JIS. The specific flange face type (Raised Face, Flat Face) and drilling pattern can be specified to match your existing pipeline.
Do you offer actuated versions of this valve?
Yes. The valve can be furnished with mounting pads for electric, pneumatic, or hydraulic actuators. We can supply the complete assembly or just the valve ready for an actuator of your choice.
What is the typical lead time for an order of these valves?
Lead time depends on order quantity and specific configuration. For standard material builds, we generally maintain a stock or can produce within a competitive timeframe. Please inquire with your required specifications for an accurate schedule.
How does the fire-safe option work?
In a fire-safe design, the valve incorporates secondary metal-to-metal sealing surfaces (e.g., between the ball and body). If a fire destroys the primary soft seats (PTFE), these metal seats engage to prevent catastrophic leakage of flammable fluids, meeting specific test standards like API 607/API 6FA.
What quality documentation do you provide with the valves?
We provide a standard material test certificate, product合格证 (conformity certificate), and can provide more detailed inspection reports, such as for pressure testing, upon request. Our ISO9001 system ensures traceability and documentation control.