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Help CenterMarine Pipeline Ball Valve Flanged per CB/T3191, Suitable for Fuel Oil and Lubricant Transfer
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As a professional manufacturer of industrial valves since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing reliable and durable fluid control solutions for demanding marine and offshore applications. Our Marine Pipeline Ball Valve, designed and manufactured in strict compliance with the CB/T3191 standard, is engineered specifically for the safe and efficient transfer of fuel oil and lubricants. With an annual export value reflecting our global reach and commitment to quality, we understand the critical need for valves that perform under pressure in corrosive marine environments. This product represents our dedication to combining robust construction with precise engineering to meet the stringent requirements of shipbuilding, port operations, and offshore platforms worldwide.
This flanged ball valve is a cornerstone for pipeline systems handling hydrocarbon-based fluids. Its design prioritizes safety, longevity, and minimal maintenance, which are non-negotiable in marine operations. The valve features a robust construction suitable for the rigors of sea service, including exposure to saltwater, vibration, and variable pressure conditions.
Key Features and Technical Advantages:
- Standard-Compliant Design: Manufactured per the Chinese CB/T3191 standard for marine valves, ensuring compatibility and reliability within marine piping systems. The flanged connections provide a secure, leak-proof interface that is easy to install and maintain.
- Superior Sealing Performance: Utilizes advanced seat materials like PTFE or reinforced PTFE, which offer excellent chemical resistance against fuel oils and lubricants. This ensures a bubble-tight seal in both directions, preventing costly leaks and environmental hazards.
- Robust Construction for Harsh Environments: The valve body is typically crafted from carbon steel with anti-corrosion coatings or stainless steel (304/316) for enhanced corrosion resistance. This construction withstands the corrosive effects of saltwater spray and atmospheric conditions common in marine settings.
- Versatile Operation and Actuation: Available with a standard manual lever for quick operation. For larger sizes or automated systems, options include gear operators for reduced torque and pneumatic or electric actuators, enabling remote control and integration into shipboard management systems.
- Full Port or Standard Port Design: The full port (full bore) design minimizes pressure drop across the valve, which is crucial for efficient pumping and transfer of viscous fluids like heavy fuel oil. The smooth bore also reduces turbulence and the risk of clogging.
- Fire Safe Capability: An optional fire-safe design is available. In the event of a fire, secondary metal seals engage to maintain a seal and prevent the escalation of a fire through the pipeline, a critical safety feature for fuel transfer lines.
Technical Specifications Table:
| Parameter | Specification / Range |
| Design Standard | CB/T3191 |
| Nominal Diameter (DN) | 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 450, 500, 600 |
| Pressure Rating (PN) | 10, 16, 25, 40 |
| Body Material | WCB (Carbon Steel), CF8/CF8M (304/316 Stainless Steel) |
| Seat & Seal Material | PTFE, Reinforced PTFE, RPTFE |
| Temperature Range | -20°C to 200°C (depending on seat material) |
| Operation Type | Manual Lever, Gear Operator, Pneumatic Actuator, Electric Actuator |
| End Connection | Flanged (RF, FF), per CB/T3191 face-to-face dimensions |
Benefits for Your Operations: Choosing our Marine Pipeline Ball Valve translates into tangible operational benefits. You gain a reliable shut-off device that ensures the safe containment and directional control of valuable and hazardous fluids. The durable construction leads to a long service life with minimal downtime for repairs or replacements. Ease of operation and maintenance reduces labor costs and vessel out-of-service time. Furthermore, compliance with recognized marine standards facilitates smoother regulatory approvals and inspections for your vessels or offshore installations.
Frequently Asked Questions (FAQ):
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Q: Is this valve suitable for heavy fuel oil (HFO) transfer?
A: Yes, absolutely. This valve is specifically designed for fuel oil and lubricant services. The material compatibility, full port design to handle viscosity, and robust sealing make it an excellent choice for HFO pipelines on ships and at bunkering stations. -
Q: What is the significance of the CB/T3191 standard?
A: CB/T3191 is a Chinese national standard for marine flanged steel ball valves. It specifies requirements for design, materials, dimensions, pressure-temperature ratings, and testing. Valves conforming to this standard are widely accepted and specified in shipbuilding and marine engineering projects, particularly in Asian markets. -
Q: Can you provide valves with different flange standards (like ANSI, JIS, DIN)?
A: While this model is per CB/T3191, we can manufacture valves with flanges to other major standards such as ANSI B16.5, JIS, or DIN upon request. Please specify your required flange standard and rating when inquiring. -
Q: What are the available actuator options for automated control?
A: We offer a range of actuation solutions. You can choose from double-acting or spring-return pneumatic actuators, or electric actuators (on/off or modulating). The specific model will be selected based on your required torque, available power source (air or electricity), and control signal. -
Q: How do you ensure corrosion resistance for long-term marine use?
A: For carbon steel valves, we apply high-quality epoxy or other suitable marine-grade coatings to the exterior. For critical areas, we recommend stainless steel (304 or 316) valves, which offer inherent and superior resistance to saltwater corrosion. Internal components are also selected for compatibility with the fluid and environment. -
Q: What is your lead time for standard sizes?
A: For standard sizes and materials in our inventory, lead times can be relatively short. For custom configurations or large orders, we provide a production schedule upon receipt of your detailed specifications. Our multiple shipment ports (Shanghai, Guangzhou, Hong Kong, Beijing) allow for flexible and efficient logistics. -
Q: Do you offer fire-safe tested valves?
A: Yes, we can provide fire-safe design options. These valves incorporate secondary metal sealing surfaces that engage to maintain a seal if the primary soft seals are compromised by fire. Certificates for fire-safe testing can be provided upon request for specific models. -
Q: What after-sales support do you provide?
A: As a manufacturer, we provide technical documentation, including dimensional drawings, material certificates, and test reports. We also offer guidance on installation, operation, and maintenance. Spare parts like seals and seats are available for order to support the lifecycle of the valve.
Backed by our ISO9001 certification, every Marine Pipeline Ball Valve undergoes rigorous quality control and pressure testing before shipment, ensuring it meets our high standards and your performance expectations. Our established presence in key global markets—from North America and Europe to Southeast Asia and Africa—demonstrates our product's reliability and our capability to serve international clients. We invite shipyards, marine engineers, bunkering companies, and offshore operators to experience the durability and performance of our valves. Contact Shanghai Zhibang Valve today to discuss your specific requirements, request a detailed quotation, or learn more about how our solutions can enhance the safety and efficiency of your fluid transfer systems.
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