Contact Platform Support
Help CenterCB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, Low Torque Operation, PN16
Product Spotlights
Related Products
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, For Ship Ballast Water SystemsNegotiableMOQ: 1 Unit -
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
As a specialized manufacturer with over 8 years of dedicated experience in industrial valve production, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our high-performance CB/T3191 Marine Ball Valve. Engineered specifically for demanding seawater and marine applications, this valve combines superior 316L stainless steel construction with a low-torque design to ensure reliable, long-lasting service in corrosive saltwater environments. Our commitment to ISO9001 quality management processes guarantees that every valve meets stringent performance criteria, providing shipbuilders, offshore platform operators, and marine system integrators with a component they can trust for critical fluid control.
The core of this valve's reliability lies in its material selection and precision engineering. The body, ball, and stem are all constructed from 316L stainless steel, a grade renowned for its exceptional resistance to pitting and crevice corrosion in chloride-rich environments like seawater. This material choice is not arbitrary; it is a direct response to the harsh operational realities faced by marine equipment. Furthermore, the valve features a specially designed low-torque operation mechanism. This is achieved through several key features:
- Precision-Machined Ball and Seat: The ball is polished to a mirror-like finish (Ra ≤ 0.4 µm) and paired with a PTFE seat, creating an ultra-smooth surface that minimizes friction.
- Reduced Stem Friction: High-quality stem seals and thrust washers ensure smooth rotation with minimal resistance.
- Optimized Lever Design: The ergonomic lever provides excellent mechanical advantage, allowing for easy quarter-turn operation even after prolonged periods in a static position.
This low-torque feature translates directly into operational benefits: reduced operator fatigue, quicker actuation times, and less stress on the valve's internal components, thereby extending its service life. The valve is designed to the CB/T3191 standard, a Chinese national standard for marine valves that specifies requirements for materials, pressure testing, and marking, ensuring compatibility and reliability in marine systems.
Beyond its core construction, the valve offers versatility to suit various system requirements. It is available with different end connections and actuator options to integrate seamlessly into your specific piping layout and control scheme.
| Specification | Details |
| Design Standard | CB/T3191 |
| Pressure Rating (PN) | 16 (Test Pressure: 24 bar) |
| Body & Ball Material | ASTM A351 CF8M / 316L Stainless Steel |
| Seat & Seal Material (Std) | PTFE (Polytetrafluoroethylene) |
| Stem Material | 316 Stainless Steel |
| Operation Temperature | -20°C to +180°C (with PTFE seats) |
| Flow Characteristic | Quick Opening, Full Port (Standard) |
| Fire Safe Design | Optional, available upon request |
The advantages of choosing our marine ball valve are clear and impactful for your operations:
- Exceptional Corrosion Resistance: 316L SS offers superior performance in seawater, brackish water, and other aggressive marine fluids compared to standard 304 or carbon steel valves.
- Reduced Maintenance & Downtime: The robust construction and corrosion resistance lead to fewer failures, lower spare part consumption, and less frequent maintenance interventions.
- Enhanced System Safety: Reliable shut-off is critical in marine systems. The bubble-tight seal (tested per relevant standards) prevents leaks that could lead to equipment damage, environmental issues, or safety hazards.
- Operational Efficiency: The full-port design ensures minimal pressure drop across the valve, preserving pump energy and optimizing system flow rates.
- Long Service Life: The combination of premium materials and precision manufacturing results in a valve built to withstand the test of time in challenging conditions, offering an excellent return on investment.
With an established track record since 2016 and an annual export value consistently ranging between US$1 million and US$1.5 million, Shanghai Zhibang has earned the trust of partners across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Western Europe. Our products are shipped from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring efficient logistics to global destinations. This global reach is a testament to the reliability and performance of our valves in diverse applications. When you choose our CB/T3191 Marine Ball Valve, you are not just purchasing a component; you are investing in a solution backed by rigorous manufacturing standards, proven material science, and a company dedicated to supporting your marine engineering needs. Contact us today to discuss your specific requirements, request a detailed quotation, or learn more about how this valve can enhance the reliability and efficiency of your seawater systems.
Frequently Asked Questions (FAQ)
Q1: Is this valve suitable for continuous immersion in seawater?
A1: Yes, the 316L stainless steel construction is specifically chosen for its excellent resistance to corrosion in chloride environments like seawater, making it suitable for both intermittent and continuous service in marine applications.
Q2: What is the main benefit of the "low torque" operation?
A2: Low torque operation allows the valve to be opened and closed easily, even by hand, reducing operator effort and enabling faster system adjustments. It also minimizes wear on the valve stem and seat over time.
Q3: Can this valve be used with fluids other than seawater?
A3: Absolutely. While optimized for seawater, its 316L SS and PTFE construction makes it suitable for a wide range of mildly corrosive chemicals, freshwater, oils, and gases within its specified pressure and temperature ratings.
Q4: What end connection standards do you offer?
A4: We offer flanged connections compliant with common international standards such as ISO, DIN, ANSI, and JIS, as well as the Chinese GB standard. Threaded (NPT, BSP) ends are also available. Please specify your requirement.
Q5: Do you provide actuators for automated operation?
A5: Yes, we can supply the valve pre-fitted with pneumatic (double-acting or spring-return) or electric actuators. This is a customizable option to suit your automated control system needs.
Q6: What is the delivery lead time for standard sizes?
A6: For standard sizes and configurations (DN15-DN100, flanged, lever handle), we typically maintain stock for prompt shipment. Lead times can vary based on order quantity and specific customization; please inquire for a precise schedule.
Q7: How do you ensure the quality of your valves?
A7: Our manufacturing process is certified under the ISO9001 quality management system. Each valve undergoes rigorous pressure testing (shell test and seat test) and dimensional inspection before shipment to ensure it meets the declared performance standards.
Q8: What is the difference between PN16 and Class 150 pressure ratings?
A8: PN16 (Pressure Nominal 16) is a metric rating corresponding to a maximum working pressure of 16 bar at ambient temperature. Class 150 is an imperial rating. For many standard temperatures, PN16 is roughly equivalent to Class 150, but specific application conditions should be reviewed for precise selection.
Send Inquiry to This Supplier
You May Also Like
-
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
-
CB/T3191 Marine Ball Valve OEM Factory: Low Torque Operation, Reinforced PTFE Seals, Long Service LifeNegotiableMOQ: 1 Unit
-
316 Stainless Steel Marine Ball Valve For Compressed Air, CB/T3191 Standard, Threaded ConnectionNegotiableMOQ: 1 Unit
-
CB/T3191 Approved Marine Air Valve, Manual Operation, Cast Iron Body With Rubber Seal, PN1.0-4.0MPaNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve, 10 Units MOQ, Bulk Order Discount, Standard Packing For ExportNegotiableMOQ: 1 Unit
