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Help CenterCB/T3191 Bronze Marine Ball Valve Supplied With Installation Guide and Technical Support
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As a dedicated manufacturer of industrial valves, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance CB/T3191 Bronze Marine Ball Valve. Engineered specifically for the demanding environments of marine and offshore applications, this valve combines the proven corrosion resistance of bronze with a robust ball valve design. We understand that reliability and longevity are paramount in shipboard systems, which is why we supply each valve with a comprehensive Installation Guide and dedicated Technical Support to ensure optimal performance from day one. This product is a testament to our commitment to quality, backed by our ISO9001 certified manufacturing processes and over eight years of industry experience since our establishment in 2016.
Our CB/T3191 Bronze Marine Ball Valve is designed to offer superior sealing and dependable operation in seawater, bilge, ballast, cooling, and other critical shipboard piping systems. The use of marine-grade bronze provides excellent resistance to saltwater corrosion and dezincification, ensuring a long service life even in harsh maritime conditions. The quarter-turn operation of the ball valve allows for quick and easy open/close control, which is essential for routine operations and emergency situations onboard vessels.
Key Product Features & Technical Advantages:
- Marine-Grade Bronze Construction: The valve body, ball, and stem are crafted from high-quality bronze alloys specifically selected for marine service. This material offers superior resistance to pitting, crevice corrosion, and erosion caused by seawater flow, far outperforming standard brass or other materials in saline environments.
- CB/T3191 Standard Compliance: Manufactured in strict accordance with the Chinese CB/T3191 standard for marine valves, ensuring dimensional accuracy, pressure integrity, and material specifications suitable for shipbuilding and repair.
- Advanced Seat Sealing: Features a flexible sealing seat, typically made from PTFE or reinforced PTFE. This design ensures a bubble-tight seal in both directions, minimizes operating torque, and provides reliable performance across a wide temperature range.
- Robust Stem Design: Incorporates an anti-blowout stem design that prevents the stem from being ejected under pressure, enhancing operational safety for personnel. The stem is sealed with multiple sets of packing rings to prevent external leakage.
- Low Maintenance & Easy Operation: The simple design with minimal internal parts reduces the need for frequent maintenance. The standard lever handle provides clear visual indication of the valve position (open/closed) and requires minimal effort to operate.
- Versatile End Connections: Available with various end connections to suit different piping layouts, including flanged ends for bolted connections and threaded ends (NPT, BSP) for simpler systems. Custom end preparations are available upon request.
Detailed Technical Specifications:
| Parameter | Specification / Option |
| Product Standard | CB/T3191 |
| Body Material | Marine Bronze (C95800, C83600, or equivalent) |
| Ball & Stem Material | Bronze / Stainless Steel (optional) |
| Seat Seal Material | PTFE, Reinforced PTFE, Nylon (customizable) |
| Pressure Rating (Nominal) | PN10, PN16, Class 150, Class 300 |
| Temperature Range | -20°C to 180°C (subject to seat material) |
| Port Type | Full Port (Standard), Reduced Port (Available) |
| Operation | Lever Handle (Standard), Gear Operator (for large sizes) |
| End Connection | Flanged (RF, FF), Threaded (NPT, BSPT, BSPP) |
Benefits for Our Clients: Choosing our marine ball valve translates into tangible benefits for shipyards, vessel owners, and marine equipment suppliers. You gain access to a corrosion-resistant solution that reduces replacement frequency and downtime. The reliable sealing performance minimizes the risk of system leaks, protecting valuable equipment and cargo. Furthermore, the included installation guide and technical support empower your crew or technicians to install and maintain the valves correctly, maximizing their lifespan and ensuring system safety. Our valves are designed for compatibility with international piping standards, facilitating easy integration into both new builds and retrofit projects.
Frequently Asked Questions (FAQ):
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Q: What specific bronze alloy is used, and why is it suitable for marine use?
A: We typically use alloys like C95800 (Aluminum Bronze) or C83600 (Leaded Red Brass) which are known for excellent resistance to saltwater corrosion and dezincification. These alloys maintain their strength and integrity in continuous seawater immersion, making them a preferred choice for marine valves. -
Q: Is this valve suitable for freshwater applications on ships as well?
A: Absolutely. While optimized for seawater, its corrosion-resistant properties make it equally reliable for freshwater cooling systems, potable water lines, and other freshwater services onboard, offering versatile application across the vessel. -
Q: What is included in the "Technical Support" mentioned?
A: Our technical support includes pre-sales consultation for valve selection, assistance with interpreting the installation guide, and post-sales support for operational queries. For complex issues, our engineering team can be contacted directly. -
Q: Can these valves be supplied with different actuator types for remote operation?
A: Yes. While supplied standard with a manual lever, we can provide options for pneumatic, hydraulic, or electric actuators to enable remote or automated control systems. Please specify your requirements during inquiry. -
Q: How does the CB/T3191 standard compare to other international marine valve standards?
A: The CB/T3191 is a Chinese national standard specifically for marine valves, covering dimensions, materials, and testing. It is widely recognized and accepted in global shipbuilding, especially for vessels built or serviced in Asian regions, and ensures compatibility with common marine piping specifications. -
Q: What is the typical lead time for an order, and what are the shipping options?
A: Lead times vary based on order quantity and valve specifications. We ship globally from major ports like Shanghai, Guangzhou, and Hong Kong, offering flexible logistics solutions to meet your project schedule in markets across North America, Europe, Asia, and beyond. -
Q: Are spare parts like seals and gaskets readily available?
A: Yes. We maintain an inventory of common spare parts. We recommend ordering a maintenance kit with your valve purchase to ensure you have critical seals on hand for future servicing, minimizing vessel downtime. -
Q: Does the valve come with any factory testing documentation?
A> Each valve undergoes pressure and shell tests according to standard requirements. A test certificate can be provided with the shipment upon request, detailing the test pressures and results for your quality records.
Shanghai Zhibang Valve Manufacture Co., Ltd. stands behind every CB/T3191 Bronze Marine Ball Valve we produce. Our commitment to quality is formalized through our ISO9001 certification, ensuring consistent manufacturing excellence. With an annual export value ranging between US$1 Million to US$1.5 Million, we have established a strong, trusted presence in key maritime markets worldwide, including North America, Europe, Southeast Asia, and Africa. This global reach is supported by efficient logistics from multiple Chinese ports. We invite shipbuilders, marine engineers, and distributors to experience the reliability of our products and the strength of our customer support. Contact us today to discuss your specific requirements, request a detailed quotation, or obtain a copy of our installation guide.
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