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Help CenterCB/T3191 Marine Ball Valve for Ship Fuel Oil Transfer and Bunkering Systems, Carbon Steel Construction
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As a specialized manufacturer with a strong presence in the global marine industry, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our CB/T3191 Marine Ball Valve, engineered specifically for the demanding environments of ship fuel oil transfer and bunkering systems. Built with robust carbon steel construction and adhering to stringent marine standards, this valve is a cornerstone for ensuring safe, efficient, and reliable fluid control on vessels and at bunkering stations worldwide. Our commitment, backed by ISO9001 certified manufacturing processes since our establishment in 2016, is to deliver valves that meet the exacting requirements of maritime operations, contributing to the seamless logistics of global shipping.
This CB/T3191 Marine Ball Valve is designed to handle the transfer of fuel oils, including MDO and HFO, with unwavering reliability. Its core value lies in providing a secure shut-off solution that prevents leaks and ensures operational safety in critical fuel handling processes. Key features and detailed specifications include:
- Robust Carbon Steel Construction: The valve body and major components are manufactured from high-grade carbon steel, offering superior strength and excellent resistance to the mechanical stresses and corrosive elements encountered in marine service.
- Compliance with CB/T3191 Standard: Specifically designed to meet the Chinese shipbuilding standard CB/T3191, ensuring compatibility and performance acceptance within the maritime industry, particularly for vessels built or serviced to these specifications.
- Full Port Design: Minimizes pressure drop across the valve, allowing for efficient and high-flow-rate transfer of viscous fuel oils, which is crucial for reducing bunkering time and improving overall system efficiency.
- Versatile Sealing Options: Standard seats are made from PTFE for tight sealing and low torque operation. For higher temperature applications or specific fluid compatibility, metal-seated or other specialized seat materials are available upon request.
- Fire-Safe Design Option: Available with fire-safe features that meet relevant standards, providing an additional layer of safety by maintaining sealing integrity even under extreme emergency conditions.
- Multiple Actuation Methods: While supplied with a standard manual lever for direct operation, the valve can be easily fitted with gear operators for larger sizes or automated with pneumatic or hydraulic actuators for remote control and integration into automated bunkering systems.
The technical specifications for our standard range are summarized in the table below. Customizations outside these ranges are actively supported.
| Parameter | Specification |
| Standard | CB/T3191 |
| Body Material | Carbon Steel (WCB, LCB, etc.) |
| Size Range (Nominal Diameter) | DN15, DN20, DN25, DN32, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300 |
| Pressure Rating (PN) | PN16, PN25, PN40 (Common) |
| Connection Type | Flanged (RF, FF), Threaded (NPT, BSPT/BSPP) |
| Temperature Range | -20°C to +200°C (Standard); Extended ranges customizable |
| Seat Material | PTFE (Standard), Metal (RPTFE, etc. optional) |
| Operation | Manual Lever, Gear Operator, Pneumatic/Hydraulic Actuator (Optional) |
The advantages of choosing our valve translate directly into tangible benefits for your operations:
- Enhanced Safety & Leak Prevention: The precision-machined ball and seat ensure bubble-tight shut-off, drastically reducing the risk of fuel spills, environmental contamination, and fire hazards during transfer operations.
- Durability & Long Service Life: Carbon steel construction and quality internal components resist wear, corrosion, and degradation from constant exposure to marine atmospheres and fuel oils, leading to lower maintenance costs and longer intervals between replacements.
- Operational Efficiency: The full-port design and smooth 90-degree quarter-turn operation enable fast opening and closing, reducing labor time during bunkering. Low operating torque, especially with PTFE seats, makes manual handling easier.
- Global Compatibility & Support: Designed to widely accepted marine standards, our valves are suitable for international fleets. With annual exports valued between US$1 Million to US$1.5 Million and shipments from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we reliably supply clients across North America, South America, Europe, Asia, Africa, and Oceania.
Trust is paramount in the marine supply chain. Shanghai Zhibang Valve Manufacture Co., Ltd. stands behind every CB/T3191 Marine Ball Valve with the credibility of an ISO9001 certified manufacturer. Our decade-long experience, combined with a deep understanding of maritime applications gained from serving diverse markets globally, ensures that our products are not just components but reliable partners for your fuel management systems. We invite shipyards, bunkering service providers, ship owners, and marine equipment distributors to experience the difference that quality engineering and dedicated manufacturing can make. Contact us today to discuss your specific requirements, request a detailed quotation, or learn more about our comprehensive valve solutions for the marine industry.
Frequently Asked Questions (FAQ)
Q1: Is this CB/T3191 valve suitable for handling Heavy Fuel Oil (HFO)?
A: Yes, it is specifically designed for fuel oil transfer, including HFO. The carbon steel construction and available sealing options (like metal seats) provide the necessary durability and compatibility for viscous and abrasive fuels.
Q2: Can this valve be supplied with different flange standards, like ANSI or JIS?
A: Absolutely. While compliant with CB/T3191 dimensions, we can manufacture the valve with flanges matching ANSI, JIS, DIN, or other international standards based on your project specifications and requirements.
Q3: What is the lead time for a standard order of these marine ball valves?
A: For standard sizes and configurations within our DN15-DN300 range, typical lead time is 4-6 weeks. Larger or highly customized orders may require additional time, which we will confirm upon order review.
Q4: Do you provide valves with actuators for automated bunkering systems?
A: Yes, we offer a complete package. The valve can be pre-fitted with pneumatic or hydraulic actuators, limit switches, and positioners at our factory, ready for integration into your automated control system.
Q5: What kind of testing do these valves undergo before shipment?
A: Each valve undergoes rigorous testing, including shell strength test (hydrostatic), seat leakage test, and operational torque check. Certified test reports can be provided upon request.
Q6: Are spare parts like seats and seals readily available?
A: Yes, as the manufacturer, we maintain an inventory of critical spare parts. We can supply seal kits and individual components to support maintenance and repair activities throughout the valve's service life.
Q7: Is the valve suitable for use in cold climates or low-temperature applications?
A: The standard temperature range is -20°C to +200°C. For applications requiring lower temperature tolerance (e.g., Arctic operations), we can offer valves constructed from low-temperature carbon steel (LCB) and compatible low-temperature seals.
Q8: What documentation accompanies the valve shipment?
A: Standard documentation includes a commercial invoice, packing list, and material certificates. Optional documents like test reports, certification of origin, and operation manuals are also available.
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