Contact Platform Support
Help CenterCB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, DN15-DN100, PN16
Product Spotlights
Related Products
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, Extended Stem, PN16NegotiableMOQ: 1 Unit -
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, Standard Compliant With Technical SupportNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, With Mill Test Report And 12-Month WarrantyNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, Low Torque Operation, PN16NegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, For Ship Ballast Water SystemsNegotiableMOQ: 1 Unit
As a specialized manufacturer of industrial valves with ISO9001 certified production processes, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance CB/T3191 Marine Ball Valve. Engineered specifically for demanding marine and offshore applications, this valve is designed to handle seawater, brine, and other corrosive fluids with exceptional reliability. Built from premium 316L stainless steel, it offers superior resistance to pitting and crevice corrosion, making it an ideal choice for shipbuilding, desalination plants, and coastal infrastructure. Our commitment to precision manufacturing ensures every valve meets the rigorous standards required for safe and efficient operation in harsh environments.
This marine-grade ball valve is constructed to deliver long-lasting service and minimal maintenance. The key to its performance lies in the careful selection of materials and adherence to the CB/T3191 standard, which governs dimensions, pressure ratings, and testing for marine valves.
- Superior Corrosion Resistance: The use of 316L stainless steel, with its low carbon content and added molybdenum, provides excellent resistance to chloride-induced stress corrosion cracking, a common failure point in seawater applications.
- Robust Pressure Handling: Rated for PN16 (16 bar), the valve is designed to withstand the pressure demands of various shipboard systems, including cooling, bilge, ballast, and fire-fighting lines.
- Full Port Design: Many models feature a full port (full bore) design, minimizing pressure drop and allowing for easier pigging or cleaning of the pipeline, which is crucial for maintaining system efficiency.
- Bubble-Tight Shutoff: Precision-machined ball and seats ensure a reliable, bubble-tight seal, preventing leakage and ensuring system integrity and safety.
- Versatile End Connections: Available with flanged, threaded, or welded ends to suit different piping system requirements and installation preferences.
- Multiple Actuation Options: Can be operated via a standard manual lever, a gearbox for high-torque applications, or automated with pneumatic/electric actuators for remote control and integration into ship automation systems.
The technical specifications of our CB/T3191 Marine Ball Valve are detailed below:
| Specification | Details |
| Product Standard | CB/T3191 |
| Body Material | 316L Stainless Steel (CF3M) |
| Ball Material | 316L Stainless Steel, Chrome Plated Optional |
| Stem Material | 316 Stainless Steel |
| Seat Material | PTFE, RPTFE, PEEK, or Metal (upon request) |
| Size Range (DN) | 15, 20, 25, 32, 40, 50, 65, 80, 100 |
| Pressure Rating (PN) | 16 |
| Temperature Range | -20°C to +200°C (Max. depends on seat material) |
| End Connection | Flanged (RF/FF), Threaded (NPT/BSP), Butt Weld |
| Fire Safe Design | Available as an option |
| Anti-Static Device | Standard |
| Blow-Proof Stem | Standard |
The advantages of choosing our marine ball valve extend beyond the specifications. For shipyards and marine engineers, it translates into tangible benefits:
- Reduced Lifecycle Cost: The exceptional corrosion resistance significantly extends service intervals and reduces the frequency and cost of replacements compared to standard stainless steels.
- Enhanced System Safety: Reliable shut-off and robust construction contribute to the overall safety of the vessel's critical systems, helping to prevent accidents and environmental contamination.
- Global Compliance: Manufactured in accordance with recognized marine standards, facilitating approval processes for vessels destined for international waters.
- Ease of Maintenance: Many models feature a top-entry design, allowing for in-line maintenance and seat replacement without removing the valve body from the pipeline, saving valuable time and labor during dry-dock periods.
Backed by nearly a decade of manufacturing expertise since our establishment in 2016 and an annual export value reflecting our global reach, Shanghai Zhibang Valve has proven itself a reliable partner for industrial valve solutions. Our products are trusted across diverse markets from North America and Europe to Southeast Asia and Africa, shipped efficiently from major ports like Shanghai and Guangzhou. The ISO9001 certification underpins our consistent quality control. For your next marine or seawater project, choose a valve built for endurance. Contact us today to discuss your specific DN15-DN100 requirements, request a detailed quotation, or learn more about our customization options to ensure a perfect fit for your application.
Frequently Asked Questions (FAQ)
Q1: Why is 316L stainless steel specifically recommended for seawater applications?
A1: Seawater is highly corrosive due to its salt (chloride) content. 316L stainless steel contains molybdenum, which greatly enhances its resistance to pitting and crevice corrosion in chloride environments compared to 304 stainless steel. The "L" denotes low carbon content, reducing the risk of sensitization and intergranular corrosion during welding.
Q2: What does the "PN16" pressure rating mean?
A2: PN stands for "Pressure Nominale." PN16 indicates the valve is designed to withstand a maximum allowable working pressure of 16 bar at a reference temperature (usually 20°C). This is a common rating for many marine piping systems.
Q3: Can this valve be used for fluids other than seawater?
A3: Absolutely. While optimized for seawater, the 316L construction makes it suitable for a wide range of corrosive media, including various chemicals, acids, and brines found in offshore, chemical processing, and pharmaceutical industries. Always confirm chemical compatibility for your specific fluid.
Q4: What are the available actuation methods?
A4: The valve is typically supplied with a manual lever. However, it can be fitted with a gear operator for easier handling of larger sizes (typically DN50 and above) or automated with pneumatic (double-acting or spring-return) or electric actuators for remote control and integration into automated systems.
Q5: Is the valve fire-safe certified?
A5: Fire-safe design is available as an optional feature. In this configuration, the valve incorporates secondary metal seals that maintain a seal in the event of a fire that destroys the primary soft seats (like PTFE), helping to prevent the escalation of a fire through fluid leakage.
Q6: What is the delivery lead time for standard sizes?
A6: Standard sizes (DN15-DN100) in common configurations are often available from stock or have shorter production cycles. Exact lead times depend on the specific order quantity, configuration (end connection, actuator), and current production schedule. We provide accurate timelines upon receipt of your inquiry.
Q7: Do you provide documentation and certification with the valves?
A7> Yes. We provide essential documentation which may include a material test certificate (MTC) for the 316L steel, a certificate of compliance, dimensional drawings, and a manual. Specific certifications can be discussed based on project requirements.
Q8: How do I select the right seat material?
A8: Seat material selection depends on the fluid temperature, pressure, and abrasiveness. PTFE is standard for most seawater applications up to 200°C. For higher temperatures or more abrasive fluids, reinforced PTFE (RPTFE), PEEK, or metal seats are recommended. Our technical team can assist you in selecting the optimal material.
Send Inquiry to This Supplier
You May Also Like
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, For Offshore Platform Seawater CoolingNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: Flanged/Threaded Ends, Anti-Static Design, Suitable for Fuel Oil SystemsNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: Application in Shipboard Hydraulic Control and Ballast SystemsNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: Standard Compliant With CB/T3191, Customizable Actuation OptionsNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: Full Port Design, Pressure Rating ANSI 150/300, for Ship Pipeline SystemsNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: 12-Month Warranty, Technical Documentation SupportNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: Fire Safe Design, Extended Stem for Deck ApplicationsNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: For Marine Engine Cooling Water and Bilge SystemsNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: 316 Stainless Steel, DN15-DN300 Range, Mill Test Report ProvidedNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve OEM Factory: OEM Production With Non-Standard Design Support and Sample ProcessingNegotiableMOQ: 1 Unit
