Contact Platform Support
Help CenterCB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, Full Bore, PN16
Product Spotlights
Related Products
-
CB/T3191 Marine Ball Valve for FPSO, Forged Steel Body, DN15-DN80, PN16MPa RatedNegotiableMOQ: 1 Unit -
CB/T3191 Marine Ball Valve for FPSO Crude Oil and Gas Transfer Lines, Fire-SafeNegotiableMOQ: 1 Unit
-
FPSO Marine Ball Valve CB/T3191, Extended Warranty on Body and Seat, Technical SupportNegotiableMOQ: 1 Unit
-
FPSO Service Ball Valve, Compliant With CB/T3191, Forged Steel, 2-Piece Design, PN10-PN16NegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve for FPSO, 100% Pressure Tested, Mill Test Report ProvidedNegotiableMOQ: 1 Unit
As a specialized manufacturer with ISO9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our premium CB/T3191 Marine Ball Valve. Engineered specifically for the demanding marine environment, this valve is crafted from superior 316L stainless steel to withstand the harsh corrosive effects of seawater. Our commitment to quality, backed by an annual export value of US$1-1.5 million, ensures that every valve delivers reliable performance and long service life for critical shipboard applications. We understand the importance of dependable fluid control in maritime operations, and our product is designed to meet that need.
This full bore ball valve offers minimal pressure drop and excellent flow characteristics, making it an ideal choice for seawater cooling systems, ballast lines, fire-fighting systems, and other onboard piping. The PN16 pressure rating provides a robust safety margin for a wide range of marine service conditions. With our extensive experience supplying to global markets including North America, Europe, Southeast Asia, and Oceania, we have tailored this valve to meet international maritime standards and the practical needs of shipbuilders and ship operators worldwide.
Key Product Features & Technical Advantages:
- Superior Corrosion Resistance: Constructed entirely from 316L stainless steel, which contains molybdenum for enhanced resistance to pitting and crevice corrosion in chloride-rich environments like seawater.
- Full Bore Design: Provides an unrestricted flow path equal to the pipeline diameter, minimizing pressure loss, reducing pumping energy costs, and allowing for easy passage of pipeline pigs or inspection tools.
- Robust Pressure Rating: Rated for PN16 (16 bar), ensuring safe and reliable operation under the typical pressure ranges found in marine piping systems.
- Durable Seat Sealing: Features advanced polymer seats (typically PTFE or similar high-performance material) that ensure bubble-tight shut-off even after numerous cycles and exposure to seawater.
- Standard Compliance: Manufactured in accordance with the CB/T3191 standard, a recognized Chinese marine industry standard, ensuring dimensional consistency and compatibility with marine piping.
- Easy Operation & Maintenance: Equipped with a sturdy lever handle for quick 90-degree operation. The compact design and standard flanged ends facilitate easy installation and integration into existing systems.
Detailed Technical Specifications:
| Parameter | Specification |
| Product Standard | CB/T3191 |
| Body Material | 316L Stainless Steel (AISI 316L) |
| Ball Material | 316L Stainless Steel, Chrome Plated Optional |
| Seat & Seal Material | PTFE (Teflon) / Reinforced PTFE / Other options available |
| Pressure Rating | PN16 (16 bar @ 20°C) |
| Temperature Range | -20°C to +150°C (dependent on seat material) |
| Bore Type | Full Bore (Full Port) |
| Operation | Manual Lever Handle (Lockable Handle Optional) |
| End Connection | Flanged (RF or FF), dimensions per CB/T3191 |
| Applicable Media | Seawater, Fresh Water, Corrosive Liquids, Gases (compatible with seat material) |
Benefits for Your Marine Projects:
- Extended System Lifespan: The exceptional corrosion resistance of 316L significantly reduces maintenance frequency and replacement costs associated with valve failure in seawater systems.
- Operational Efficiency: The full bore design ensures optimal flow rates with minimal friction loss, contributing to the overall energy efficiency of pumps and systems.
- Enhanced Safety & Reliability: The robust PN16 rating and high-quality construction provide a reliable shut-off solution, critical for the safety of vessel operations and crew.
- Global Supply Chain Support: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we offer flexible and efficient logistics to shipyards and marine equipment suppliers across our main markets worldwide.
Choosing Shanghai Zhibang's CB/T3191 Marine Ball Valve means partnering with an established manufacturer dedicated to maritime fluid control solutions. Our ISO9001 certified quality management system governs every stage of production, from material sourcing to final inspection. Supported by our significant export volume and presence in key global markets, we deliver products that shipbuilders and marine engineers trust. For a durable, efficient, and reliable valve solution designed specifically for seawater service, contact us today to discuss your requirements or request a detailed quotation.
Frequently Asked Questions (FAQ):
Q1: Why is 316L stainless steel specifically recommended for seawater applications?
A1: 316L stainless steel contains molybdenum (2-3%), which dramatically increases its resistance to chloride-induced pitting and crevice corrosion compared to standard 304 stainless steel. The "L" denotes low carbon content, which minimizes sensitization (carbide precipitation) during welding, further preserving corrosion resistance in welded assemblies common in marine piping.
Q2: What is the practical advantage of a "Full Bore" or "Full Port" ball valve?
A2: A full bore valve has an internal diameter (port) equal to the nominal pipe size. This eliminates flow restriction, reduces pressure drop across the valve, prevents cavitation, and allows for the passage of cleaning pigs or inspection devices through the pipeline without removing the valve.
Q3: Can this valve be used with media other than seawater?
A3: Yes. While optimized for seawater, its 316L construction and compatible sealing materials make it suitable for a wide range of corrosive fluids, including various chemicals, brackish water, and certain gases, provided the chemical compatibility of the seat material is verified for the specific media.
Q4: What does the PN16 pressure rating signify?
A4: PN16 indicates a nominal pressure rating of 16 bar at a reference temperature of 20°C. It defines the maximum allowable working pressure the valve body and components are designed to withstand safely. For marine applications, this rating typically covers the operating pressures of seawater cooling, ballast, and general service systems.
Q5: Are different end connections available besides flanged?
A5: The standard offering per the CB/T3191 specification is flanged ends. However, as a manufacturer, we can often provide valves with threaded (NPT, BSP) or weld ends upon request for specific project requirements. Please inquire for customization options.
Q6: Is the lever handle lockable?
A6: The standard lever handle is not lockable, but lockable handle versions or the provision of padlock holes in the standard lever are common optional features we can supply. This is important for safety procedures to prevent unauthorized or accidental operation of the valve.
Q7: Do you provide certifications or test reports for the valves?
A7> As an ISO9001 certified manufacturer, we maintain strict quality control. Standard documentation includes a material certificate (CMTR) for the 316L stainless steel. Additional testing, such as pressure tests (shell test, seat test) per relevant standards, can be performed and documented upon customer request.
Q8: What is the typical lead time for orders?
A8: Lead time depends on order quantity and specific configuration. We maintain some standard sizes in stock for faster delivery. For larger or customized orders, typical production lead times range from 4-8 weeks. We provide a precise schedule upon receipt of your inquiry.
Send Inquiry to This Supplier
You May Also Like
-
Ball Valve for FPSO Seawater Cooling Systems, CB/T3191 Marine Standard, Corrosion ResistantNegotiableMOQ: 1 Unit
-
CB/T3191 Marine Ball Valve For Seawater, 316L Stainless Steel, DN15-DN100, PN16NegotiableMOQ: 1 Unit
-
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
-
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
