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Home > Industrial Equipment & Components > Valve > Butterfly Valve > CB/T3191 Marine Ball Valve OEM Factory: Fire Safe Design, Extended Stem for Deck Applications

CB/T3191 Marine Ball Valve OEM Factory: Fire Safe Design, Extended Stem for Deck Applications

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Product Spotlights

CB/T3191 compliant marine ball valve featuring a critical fire-safe design for enhanced hazard protection and an extended stem for easy operation in confined deck/pipeline spaces. Manufactured with corrosion-resistant marine-grade materials, it offers reliable performance, customizable specifications, and is backed by ISO9001 quality processes, serving global maritime and offshore projects.

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

Key Specifications

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Application:

Other, Marine piping systems

Material:

Carbon Steel, Stainless Steel, or other marine-grade alloys

Size Range:

DN15 to DN300 (or custom sizes)

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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 piping systems

Material Carbon Steel, Stainless Steel, or other marine-grade alloys

Size Range DN15 to DN300 (or custom sizes)

Design Standard CB/T3191

Fire Safe Certification API 607 / API 6FA compliant design

Stem Configuration Extended stem for deck/pipeline applications

Connection Type Flanged, threaded, or welded ends

Operation Manual (lever/handwheel) or actuator-operated

Sealing PTFE or reinforced graphite seals

Pressure Rating PN16 to PN40 (or higher upon request)

As a professional manufacturer with a solid foundation since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in producing high-performance marine valves that meet stringent industry standards. Our CB/T3191 Marine Ball Valve with Fire Safe Design and Extended Stem is engineered specifically for demanding deck and pipeline applications in the maritime and offshore sectors. This valve combines reliability, safety, and durability to ensure seamless operation in critical fluid control systems, from shipbuilding to offshore platforms.

We understand the challenges faced in marine environments, including exposure to corrosive elements, high pressures, and the need for fire safety. Our valve addresses these concerns directly, offering a robust solution that enhances system integrity and operational safety. With an annual export value reflecting our global reach and commitment to quality, we supply these valves to key markets worldwide, backed by our ISO9001-certified manufacturing processes.

Core Features & Technical Advantages:

Fire Safe Design: The valve incorporates a fire-safe construction that meets the principles of API 607/6FA. In the event of a fire, the sealing mechanism is designed to maintain a seal and prevent leakage, protecting personnel and equipment.
Extended Stem Configuration: Specifically designed for deck mounting and pipeline applications where the valve needs to be installed in confined or elevated spaces. The extended stem allows for easier operation and access, reducing installation and maintenance complexity.
CB/T3191 Compliance: Manufactured according to the Chinese national standard CB/T3191 for marine valves, ensuring compatibility with marine piping systems and meeting specific performance criteria for maritime use.
Durable Material Selection: Available in marine-grade materials such as carbon steel, stainless steel (304/316), and other alloys resistant to corrosion from seawater and harsh environments.
Versatile End Connections: Supports flanged, threaded, or welded ends to suit various pipeline connection requirements, facilitating integration into existing or new systems.
High Pressure Rating: Designed to handle pressures typically from PN16 to PN40, with options for higher ratings based on customer specifications.
Reliable Sealing System: Utilizes advanced sealing materials like PTFE or reinforced graphite, offering excellent leak-tight performance and longevity even under variable temperatures and pressures.
Operational Flexibility: Can be operated manually via lever or handwheel, or configured for actuation (electric, pneumatic, hydraulic) for remote or automated control.

Key Technical Specifications:

Parameter	Specification / Range
Standard	CB/T3191
Size Range (Nominal Diameter)	DN15 - DN300 (Custom sizes available)
Pressure Rating	PN16, PN25, PN40 (Higher ratings customizable)
Fire Safe Design	API 607 / API 6FA compliant construction
Stem Type	Extended stem for deck/pipeline mounting
Connection Types	Flanged, Threaded, Welded
Main Materials	Carbon Steel, Stainless Steel 304/316, Other alloys
Seal Material	PTFE, Reinforced Graphite (options available)
Operation Mode	Manual (lever/handwheel) or Actuator-operated

Benefits for Your Project:

Enhanced Safety: The fire-safe design provides an additional layer of protection in hazardous environments, potentially preventing catastrophic failures.
Installation Efficiency: The extended stem simplifies installation in tight deck spaces or elevated pipelines, saving time and labor costs.
Long Service Life: Corrosion-resistant materials and robust construction ensure durability, reducing maintenance frequency and replacement costs.
System Compatibility: Adherence to CB/T3191 ensures the valve fits seamlessly into standard marine piping systems, avoiding compatibility issues.
Operational Reliability: Consistent performance under varying pressures and temperatures ensures reliable fluid control, minimizing downtime.
Customization Potential: As an OEM factory, we can tailor dimensions, materials, pressure ratings, and connection types to match your specific project requirements.

Shanghai Zhibang Valve's commitment to quality is evidenced by our ISO9001 certification, ensuring consistent manufacturing standards. With an annual export value of US$1 Million to US$1.5 Million, we have established a strong presence in major global markets including North America, South America, Europe, Asia, Africa, and Oceania. Our valves are shipped from key ports like Shanghai, Guangzhou, Hong Kong, and Beijing, ensuring efficient logistics. Choosing our CB/T3191 Marine Ball Valve means partnering with a reliable manufacturer that delivers proven performance, safety-focused design, and the flexibility to meet your exact needs. Contact us today to discuss your requirements or request a detailed quotation.

Frequently Asked Questions (FAQ)

What does "Fire Safe Design" mean for this marine ball valve?
It refers to a design that incorporates features to maintain sealing integrity in a fire scenario. The valve is constructed with materials and a sealing system that can resist deformation and leakage for a specified period under fire conditions, aligning with industry fire test standards like API 607.
Why is an extended stem important for deck applications?
On decks or in pipeline runs where valves are often installed in confined or hard-to-reach locations, a standard stem might be inaccessible. The extended stem provides additional length, allowing the operator to reach and manipulate the valve more easily, enhancing safety and operational convenience.
Is this valve compatible with international marine standards beyond CB/T3191?
While manufactured to CB/T3191, the valve's design, materials, and fire-safe features often align with common international maritime requirements. For specific project standards, we can discuss customization to meet additional certifications or norms.
What materials are typically used, and how do they resist corrosion?
Common materials include carbon steel with protective coatings, and stainless steel grades like 304 or 316, which offer excellent resistance to corrosion from seawater and marine atmospheres. Material selection depends on the specific fluid and environmental conditions.
Can this valve be automated or operated remotely?
Yes. While it comes with manual operation options (lever/handwheel), it can be configured with various actuators (electric, pneumatic, hydraulic) for integration into automated control systems, allowing for remote operation.
What is the typical pressure range it can handle?
The standard pressure ratings are PN16, PN25, and PN40. However, as a manufacturer, we can produce valves for higher pressure applications based on your technical specifications.
How does the ISO9001 certification benefit the customer?
Our ISO9001 certification signifies a structured quality management system throughout our manufacturing process. This ensures consistent product quality, reliable performance, and traceability, giving you confidence in the valve's reliability and our company's professionalism.
What are the available connection types, and how do I choose?
We offer flanged, threaded, and welded end connections. The choice depends on your existing pipeline design, installation method, and sealing requirements. Our team can advise based on your system drawings or specifications.