Marine Ball Valve DN6 to DN300 PN1.0-80MPa CCS DNV LR BV ABS Certified
Product Spotlights
As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in providing high-performance fluid control solutions for the demanding marine and offshore industries. Our Marine Ball Valves represent a culmination of rigorous engineering, quality materials, and strict adherence to international maritime standards. With an annual export value reflecting our global reach across North America, Europe, Southeast Asia, and beyond, we understand the critical need for reliability and safety in shipboard applications. This DN6 to DN300 series, certified by all major classification societies, is engineered to deliver exceptional shut-off performance, durability, and ease of maintenance in high-pressure seawater, fuel, lubricating oil, and ballast systems, ensuring operational integrity for vessels worldwide.
Core Design & Construction Features:
- Superior Material Selection: Valve bodies and balls are crafted from forged or cast carbon steel (WCB, LCB), stainless steel (CF8M/316, CF8/304), or duplex steels (F51, F55) to resist corrosion from seawater, chemicals, and crude oil. Internal components are selected for compatibility with specific media.
- Robust Pressure Containment: Designed for pressure classes from PN1.0 up to 80MPa, the valves feature reinforced body structures, high-integrity stem seals, and precision-machined ball and seat interfaces to prevent leakage under extreme conditions.
- Full Marine Certification Package: Each valve is produced under our ISO9001 quality system and is certified to meet the specific rules of China CCS, DNV, Lloyd's Register (LR), Bureau Veritas (BV), and the American Bureau of Shipping (ABS), ensuring global acceptance.
- Versatile End Connections: Available with flanged ends (RF, RTJ), threaded (NPT, BSP), or socket weld connections to seamlessly integrate into existing ship piping systems from DN6 (1/4") to DN300 (12").
- Reliable Sealing Technology: Utilizes advanced seat materials like PTFE or reinforced polymers for bubble-tight shut-off in standard services, and metal-seated designs for high-temperature or abrasive slurry applications.
- Safe and Efficient Operation: Options include standard lever handles, lockable levers, gear operators for larger sizes, and pneumatic or electric actuators for remote control, enhancing safety and operational efficiency.
- Fire-Safe Design (Optional): Available with fire-safe features in accordance with API 607/ISO 10497 standards, where secondary metal seals engage to maintain isolation in the event of a fire.
- Anti-Static & Blow-Out Proof Stem: Integrated design ensures static electricity is safely discharged, and the stem is securely retained under pressure, preventing accidental ejection.
Technical Specifications & Benefits:
The table below outlines key specifications that translate into direct benefits for shipbuilders, shipowners, and offshore operators:
| Parameter | Specification / Value | Client Benefit |
| Size Range | DN6, DN8, DN10, DN15... up to DN300 | Single-source supplier for entire vessel's ball valve requirements, simplifying procurement. |
| Pressure Class | PN1.0, PN1.6, PN2.5, PN4.0, PN6.3, PN10, PN16, PN25, PN40, PN63, PN80, up to 80MPa Special Class | Suitable for low-pressure bilge systems to ultra-high-pressure hydraulic and test systems. |
| Temperature Range | Standard: -20°C to 200°C; Extended ranges available | Reliable performance in Arctic conditions or near engine room heat sources. |
| Body & Trim Materials | CS/SS316/SS304/Duplex; PTFE/RTFE/Metal Seats | Tailored material combinations combat specific corrosive media (seawater, fuel, chemicals), extending service life. |
| Operation Mode | Manual, Gear, Pneumatic, Electric Actuated | Enables automation and remote operation, reducing manual labor and improving safety in hazardous areas. |
Applications in Marine & Offshore Systems:
- Ballast & Bilge Systems: For reliable on/off control in water ballast tanks and bilge pumping lines.
- Fuel Oil & Lubrication Systems: Ensuring safe isolation for bunkering, transfer, and engine supply lines.
- Seawater Cooling & Firefighting: Used in cooling water intake/discharge and fire main isolation.
- Cargo Handling Systems: On tankers for crude oil, chemical, and LNG/LPG services (with appropriate material selection).
- Hydraulic & Pneumatic Systems: For high-pressure control in steering gear, winch, and deck machinery systems.
- General Service & Utility Lines: Throughout the vessel for compressed air, freshwater, and other utility services.
Backed by Shanghai Zhibang's commitment to quality and a proven track record of exporting to major maritime markets worldwide, our Marine Ball Valves offer a dependable solution you can trust. Our ISO9001-certified manufacturing processes ensure consistent quality, while our comprehensive certification portfolio (CCS, DNV, LR, BV, ABS) guarantees compliance with the strictest international maritime regulations. This eliminates certification hurdles and facilitates smooth vessel classification and port state inspections. Choosing our valves means investing in reduced downtime, lower lifecycle costs through durability, and enhanced operational safety for your fleet. Contact us today to discuss your specific project requirements, request detailed certification documents, or obtain a competitive quotation. We are ready to support your next build or retrofit from our strategic shipment ports in Shanghai, Guangzhou, Hong Kong, or Beijing.
Frequently Asked Questions (FAQ):
-
Q: Are these valves suitable for both newbuilding projects and retrofit/repair scenarios?
A: Absolutely. Our comprehensive size range (DN6-DN300) and standard connection types (flanged, threaded) make these valves ideal for new ship construction. They are also perfect for replacement parts during dry-docking or maintenance, as they are designed to match common international piping standards. -
Q: What is the lead time for an order of certified marine ball valves?
A: Lead times vary based on size, material, pressure class, and certification requirements. Standard materials and sizes with common certifications typically have shorter lead times. We recommend contacting our sales team with your specific list for an accurate production schedule. -
Q: Can you provide valves with specific certifications not listed, such as KR or RINA?
A: Yes. While CCS, DNV, LR, BV, and ABS are our standard offerings, we can arrange certification for other major classification societies like Korean Register (KR), RINA, or others upon request. This is subject to additional approval processes and may affect lead time and cost. -
Q: How do I select the correct seat material for my application (e.g., fuel oil vs. seawater)?
A: Seat material selection is critical. PTFE seats offer excellent sealing for general services like water and air. For hydrocarbon fuels and oils, reinforced PTFE (RTFE) is recommended. For high-temperature or abrasive services, metal seats (e.g., stainless steel) are the choice. Our technical team can guide you based on your media, temperature, and pressure. -
Q: Do you offer actuated versions for automated valve control systems?
A: Yes. We can supply these ball valves fitted with pneumatic (double-acting or spring-return) or electric actuators. Please specify your required torque, control signal (on/off or modulating), and any special requirements like solenoid valves or limit switches. -
Q: What testing is performed on each valve before shipment?
A> Each valve undergoes rigorous testing, which typically includes a shell test (body pressure test) and a seat leakage test per relevant standards like API 598 or ISO 5208. Certified valves also include testing witnessed by or for the classification society, with full documentation provided. -
Q: What are the packaging standards for export to prevent damage during sea freight?
A> Valves are carefully cleaned, dried, and preserved. They are then packaged in wooden crates or plywood boxes with internal blocking and waterproof wrapping to ensure they arrive at the destination port in perfect condition, ready for installation. -
Q: Is technical support and documentation like material certificates and test reports provided?
A> Yes. We provide a complete documentation package, which includes a commercial invoice, packing list, material certificates (3.1 or 3.2 as applicable), test reports, and the original classification society certification (if ordered). Our technical support is available for installation and operational queries.
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