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CB/T3191 Marine Ball Valve With 100% Sealing Test Warranty
Product Spotlights
CB/T3191 standard marine ball valve featuring a 100% full-pressure sealing test guarantee on every unit for assured leak-tight performance. Constructed from corrosion-resistant materials (cast steel, stainless steel, bronze) for harsh marine environments. Offers versatile configurations in sizes up to DN300, with options for flanged/threaded connections and various actuators. Backed by ISO9001-certified manufacturing and global export experience, ensuring reliability for shipboard and offshore piping systems.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Standard:
CB/T3191 Marine Industry Standard
Application:
Other, Marine & Offshore Piping Systems
Body Material:
Cast Steel, Stainless Steel, Bronze
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Standard
CB/T3191 Marine Industry Standard
Application
Other, Marine & Offshore Piping Systems
Body Material
Cast Steel, Stainless Steel, Bronze
Seat Material
PTFE, Reinforced PTFE, Metal
Connection Type
Flanged, Threaded
Pressure Rating
PN10, PN16, PN25, PN40
Size Range
DN15 - DN300 (1/2“ - 12“)
Operation
Lever, Gear, Electric Actuator
Sealing Test
100% Full Pressure Test Guarantee
Temperature Range
-20°C to 200°C
As a professional manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our high-performance CB/T3191 Marine Ball Valve. Engineered specifically for demanding maritime and offshore applications, this valve series is built to deliver exceptional reliability and leak-tight performance, backed by our stringent 100% sealing test warranty. Our commitment to quality, developed since our establishment in 2016 and proven through exports to global markets, ensures that every valve meets the rigorous standards required for shipboard and marine platform service.
Our CB/T3191 Marine Ball Valve is designed to provide superior flow control in critical piping systems. Key features and benefits include:
- Robust Construction: Manufactured from high-grade materials such as cast steel (WCB), stainless steel (CF8M/316), and bronze to withstand corrosive marine environments, including seawater, bilge systems, fuel oil, and compressed air lines.
- 100% Sealing Integrity: Every single valve undergoes a comprehensive full-pressure sealing test before shipment. This guarantees zero leakage under rated working conditions, providing unmatched operational safety and peace of mind.
- Compliant Design: Strictly adheres to the Chinese CB/T3191 standard for marine valves, ensuring compatibility with international shipbuilding specifications and facilitating smooth installation and approval processes.
- Low Torque Operation: The precision-machined ball and advanced seat materials (PTFE or reinforced PTFE) ensure smooth, low-friction quarter-turn operation, reducing wear and extending service life even with frequent cycling.
- Versatile Configurations: Available in a wide range of sizes, pressure ratings, and end connections to suit diverse system requirements on vessels, FPSOs, docks, and offshore platforms.
Technical Specifications & Options
| Parameter | Specification / Option |
| Design Standard | CB/T3191 |
| Nominal Pressure (PN) | 10, 16, 25, 40 |
| Size Range (DN) | 15, 20, 25, 32, 40, 50, 65, 80, 100, 150, 200, 250, 300 |
| Body Material | WCB (Cast Carbon Steel), CF8M (316 Stainless Steel), Bronze (C95800) |
| Seat & Seal Material | Standard: PTFE; Optional: Reinforced PTFE, Metal Seated (for high temp) |
| End Connection | Flanged (RF, FF), Threaded (NPT, BSPT, BSPP) |
| Operating Temperature | -20°C to 200°C (Standard PTFE); Higher ranges available upon request |
| Operation Method | Lever Handle (Standard), Gearbox, Electric/Pneumatic Actuator |
| Fire Safe Design | Optional API 607/API 6FA fire-safe certification available |
Advantages for Your Operations:
- Enhanced System Safety: The guaranteed leak-proof performance minimizes the risk of fluid loss, environmental contamination, and potential hazards onboard, protecting both personnel and assets.
- Reduced Maintenance & Downtime: Durable materials and reliable sealing translate to longer maintenance intervals and fewer unscheduled repairs, lowering total lifecycle costs for ship operators.
- Global Supply Chain Support: With annual export values between US$1-1.5 million and major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely delivery to your project sites worldwide, including North America, Europe, Southeast Asia, and the Middle East.
- Technical Flexibility: We offer customization options for special coatings, extended stems, locking devices, and specific material grades to meet unique project specifications or classification society requirements.
Trust in a proven supplier. Shanghai Zhibang Valve's ISO9001-certified manufacturing processes and our extensive experience serving the global marine industry since 2016 form the foundation of our product reliability. Our valves are trusted in markets across North and South America, Europe, Asia, Africa, and Oceania. Choosing our CB/T3191 Marine Ball Valve means selecting a component backed by a comprehensive quality guarantee, robust engineering, and a manufacturer dedicated to supporting your project's success from specification to sea trial. Contact us today for a detailed quotation or technical consultation to secure the reliable flow control your marine applications demand.
Frequently Asked Questions (FAQ)
-
Q: What does the 100% sealing test warranty mean?
A: It means every individual valve we produce is subjected to a full-pressure hydrostatic or pneumatic test (per applicable standards) before leaving our factory. We guarantee it will hold a seal under its rated pressure, providing documented test certification. -
Q: Is the CB/T3191 standard accepted internationally for shipbuilding?
A: Yes, the CB/T3191 standard is widely recognized and accepted in the global marine industry, particularly for vessels built to or supplying the Chinese market. It is compatible with other major marine valve standards. -
Q: Can these valves be used with seawater?
A: Absolutely. We offer specific material grades like 316 stainless steel or bronze which provide excellent corrosion resistance in seawater applications. Proper material selection is key, and we can advise based on your service conditions. -
Q: Do you provide valves with actuators?
A: Yes, we can supply the ball valves equipped with electric or pneumatic actuators for remote or automated operation. Actuator brand, torque, and control signal can be customized to your system requirements. -
Q: What is the typical lead time for orders?
A: Lead time depends on the specification and order quantity. Standard configurations typically have shorter lead times. Our multiple shipment ports (Shanghai, Guangzhou, etc.) help optimize logistics for faster delivery. -
Q: Are your products certified by classification societies like ABS, DNV, or LR?
A> We hold ISO9001 certification for our quality management system. Specific classification society approvals for valve models are available upon request and can be arranged based on project needs. -
Q: What is the difference between PTFE and metal seats?
A: PTFE seats offer excellent sealing and low operating torque for general services. Metal seats are designed for high-temperature applications or services where PTFE is not suitable, though they may require higher operating torque. -
Q: Do you offer anti-corrosion coatings?
A: Yes, special epoxy coatings or other protective finishes can be applied to the valve exterior for enhanced corrosion protection in harsh offshore environments. This is a customizable option.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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