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Help CenterAPI 6D Certified Marine Ball Valve, DN50-DN300 Size Range, Class150-Class600
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As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in providing high-performance fluid control solutions for demanding industrial applications. Our API 6D Certified Marine Ball Valves represent the culmination of rigorous engineering and quality control, designed specifically to meet the stringent requirements of offshore, marine, and critical pipeline services. With an annual export value ranging between US$1 Million and US$1.5 Million, we have built a solid reputation across global markets including North America, Europe, Southeast Asia, and the Middle East by delivering reliable products that ensure operational safety and efficiency.
These valves are engineered for exceptional performance in high-pressure and corrosive environments. The core value lies in their robust construction, adherence to international standards, and versatility across a wide range of sizes and pressure classes, making them a preferred choice for engineers and procurement specialists worldwide.
Detailed Product Features & Technical Specifications:
The design and manufacturing of our Marine Ball Valves focus on durability, tight sealing, and ease of operation. Key characteristics include:
- Full Compliance with API 6D: Manufactured and tested in strict accordance with API Specification 6D for pipeline valves, ensuring reliability for isolation and control in oil, gas, and petrochemical services.
- Wide Size and Pressure Range: Available from DN50 to DN300 (2" to 12") and pressure classes from Class150 to Class600, providing a comprehensive solution for various system requirements.
- Robust Construction Materials: The valve body is typically crafted from forged or cast carbon steel (A216 WCB) or stainless steel (A351 CF8/CF8M). Duplex stainless steel options are available for highly corrosive applications, such as seawater or sour service.
- Advanced Sealing Technology: Utilizes seats made from PTFE or reinforced PTFE for standard services, offering excellent chemical resistance and low friction. Metal seated (e.g., Stellite) versions are offered for high-temperature or abrasive service, often featuring a fire-safe design.
- Bubble-Tight Shut-off: The precision-machined ball and seat combination ensures a bubble-tight seal, minimizing leakage and enhancing system safety and environmental protection.
- Low Torque Operation: The trunnion-mounted ball design reduces operating torque, allowing for smoother actuation with manual levers, gear operators, or automated actuators (pneumatic/electric).
- Anti-Static & Fire Safe Features: Valves can be equipped with anti-static devices to prevent spark hazard and are available with fire-safe designs tested to API 607/API 6FA standards upon request.
- Extended Service Life: Superior surface finishes, corrosion-resistant coatings, and high-grade packing materials contribute to a long service life with minimal maintenance.
Technical Parameters Table:
| Parameter | Specification / Options |
| Design Standard | API 6D, ASME B16.34 |
| Face-to-Face | ASME B16.10 |
| Flange Dimensions & Rating | ASME B16.5, Class150, 300, 600; RF or RTJ face |
| Test Standards | API 598 / API 6D (Shell Test, Seat Test, Low Pressure Seat Test) |
| Temperature Range (Standard) | -29°C to 200°C (-20°F to 392°F) |
| Operation Temperature (Extended) | Up to 425°C (800°F) with metal seats, customizable |
| End Connections | Flanged (RF/RTJ), Butt Weld (BW) |
| Actuation Options | Lever, Gearbox, Pneumatic Actuator, Electric Actuator |
Benefits for Our Clients:
- Enhanced System Safety & Reliability: API 6D certification provides assurance of quality and performance, critical for marine and offshore applications where failure is not an option.
- Reduced Total Cost of Ownership: The durable construction and reliable sealing reduce maintenance frequency, downtime, and replacement costs over the valve's lifecycle.
- Global Compliance & Ease of Procurement: Adherence to widely recognized international standards simplifies approval processes for projects worldwide, facilitating smoother integration into your systems.
- Flexibility & Customization: The broad range of sizes, pressure ratings, materials, and actuation methods allows you to select or customize the valve to precisely match your specific process conditions.
- Streamlined Logistics: With major shipment ports in Shanghai, Guangzhou, Hong Kong, and Beijing, we offer flexible and efficient logistics solutions to deliver products to your destination reliably.
Backed by our ISO9001 certified quality management system, every valve undergoes stringent inspection and testing procedures before dispatch. Our extensive experience supplying to diverse regions—from North America and Western Europe to Southeast Asia, Africa, and Oceania—demonstrates our capability to meet varied international standards and client expectations. The consistent growth in our export volume underscores the trust global partners place in our products. Choosing our API 6D Marine Ball Valves means investing in a component that delivers performance, safety, and longevity. We encourage you to contact us with your specific size, pressure, and material requirements for a detailed quotation and technical support to ensure the optimal valve solution for your application.
Frequently Asked Questions (FAQ):
Q1: What does "API 6D Certified" mean for this ball valve?
A1: API 6D is a specification from the American Petroleum Institute for pipeline valves. Certification means the valve is designed, manufactured, and tested according to these rigorous standards, ensuring its suitability for demanding oil, gas, and petrochemical services, particularly where safety and reliability are paramount.
Q2: Can these valves be used for seawater service on ships or offshore platforms?
A2: Yes, they are well-suited for marine applications. For seawater service, we recommend selecting body materials like duplex stainless steel (e.g., UNS S31803/S32205) and appropriate seat materials to resist corrosion. Specific material recommendations can be provided based on your water chemistry and operating conditions.
Q3: Are fire-safe versions available?
A3: Yes, fire-safe design is a common option. Valves can be manufactured and tested to meet fire-safe standards such as API 607 or API 6FA. Please specify this requirement when inquiring.
Q4: What actuation methods do you offer?
A4> We provide a range of actuation options to suit different operational needs:
- Manual operation via lever handle or gearbox (for higher torque valves).
- Pneumatic actuators (double-acting or spring-return).
- Electric motor actuators.
The choice depends on your available power source, required actuation speed, and automation level.
Q5: What is the typical delivery lead time for an order?
A5: Lead time varies based on order quantity, specific material, and configuration. Standard configurations in common materials typically have shorter lead times. We provide estimated delivery schedules upon receipt of your detailed inquiry and work to meet project timelines.
Q6: Do you provide documentation like test reports and certification?
A6> Yes, as a standard practice, we provide essential documentation with each shipment, which typically includes:
- Product Certificate of Compliance.
- Material Test Certificates (MTC) for major components.
- Factory Test Reports (e.g., hydrostatic shell/seat tests).
- Packing List and Commercial Invoice.
Specific certification requirements can be discussed.
Q7: Can you supply valves with butt weld ends instead of flanged ends?
A7: Absolutely. Butt weld end connections are available and are often preferred for high-pressure, permanent pipeline installations to ensure a leak-proof joint. Please specify your required end connection type (flanged RF/RTJ or butt weld) when requesting a quote.
Q8: What is your quality control process?
A8: Our manufacturing process is governed by an ISO9001 quality management system. Quality control involves multiple stages: incoming material inspection, in-process checks during machining and assembly, and final testing. Every valve undergoes pressure tests (shell and seat tests per API 598/API 6D) and visual inspection before approval for shipment.
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