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Help CenterAPI 6D Full Bore Ball Valve With Mill Test Report, Cast Steel Body
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As a professional valve manufacturer based in Shanghai with a strong commitment to quality since 2016, Shanghai Zhibang Valve Manufacture Co., Ltd. is proud to present our premium API 6D Full Bore Ball Valve. Engineered for the most demanding industrial applications, this valve is designed to provide superior flow capacity, reliable shut-off, and long-term durability in critical pipeline systems. We understand that in industries like oil & gas, petrochemical, and power generation, equipment failure is not an option. That's why we build our valves to meet the stringent requirements of API 6D and support every unit with a comprehensive Mill Test Report (MTR), providing full traceability and material verification for your peace of mind. Our focus on export excellence, serving markets from North America to Southeast Asia, ensures our products are built to international standards and customer specifications.
Our Full Bore Ball Valve is constructed with a robust cast steel body, typically using ASTM A216 WCB material, offering excellent strength and resistance to pressure and temperature fluctuations. The "full bore" or "full port" design means the internal bore diameter is equal to the pipeline's inner diameter, minimizing pressure drop and allowing for the passage of pipeline pigs, sphere cleaners, or other inspection devices—a critical feature for maintenance and integrity programs.
- Superior Flow Efficiency: The full bore design ensures minimal flow restriction, reducing turbulence and energy loss across the valve, which translates to lower operational costs over the system's lifetime.
- Robust Construction & Safety: The cast steel body provides high structural integrity for high-pressure applications. Optional fire-safe design per API 607/6FA standards is available for applications where fire hazard is a concern, ensuring the valve maintains sealing integrity even under extreme conditions.
- Reliable Sealing Performance: We offer a range of seat materials, including standard PTFE for general service, reinforced PTFE (RPTFE) for extended life, and metal-seated versions for high-temperature or abrasive services. The trunnion-mounted ball design ensures low operating torque and prevents seat deformation under high pressure.
- Versatile Operation & Configuration: The valve can be supplied with a manual lever for smaller sizes, a gearbox for larger sizes requiring mechanical advantage, or prepared for the installation of pneumatic, hydraulic, or electric actuators for automated process control.
- Comprehensive Documentation & Traceability: Every valve is supplied with a Mill Test Report (MTR) that details the chemical composition and mechanical properties of the cast steel and other critical components, fulfilling the documentation requirements for quality-sensitive projects.
Below is a summary of typical specifications for our API 6D Full Bore Ball Valves:
| Parameter | Specification / Option |
|---|---|
| Design & Manufacturing Standard | API 6D, ASME B16.34 |
| Pressure-Temperature Rating | ASME B16.34, Class 150, 300, 600, 900, 1500, 2500 |
| Size Range (Nominal) | 2" (DN50) to 48" (DN1200) |
| End Connection Standard | ASME B16.5 Flanged (RF, RTJ), Butt Weld (BW) per ASME B16.25 |
| Body & Bonnet Material | Cast Steel A216 WCB, other grades (WCC, LCB, LCC) available |
| Ball & Stem Material | AISI 4140 / 17-4PH / Stainless Steel 316, with various coatings |
| Seat & Seal Material | Standard: PTFE. Options: RPTFE, PEEK, Nylon, Metal (Inconel/Stellite) |
| Test & Inspection | API 598 / ISO 5208. Shell Test, Seat Test, High-Pressure Gas Test |
The primary advantage of choosing our valve lies in its optimized total cost of ownership. The initial investment is justified by reduced maintenance downtime, lower pumping costs due to efficient flow, and the extended service life provided by high-quality materials and precise manufacturing. For engineers and procurement managers, this valve represents a reliable, specification-compliant component that simplifies system design and ensures regulatory compliance.
Backed by our ISO9001 certified manufacturing processes and an annual export value demonstrating global trust, Shanghai Zhibang Valve stands as a reliable partner for your fluid control needs. We ship from major ports like Shanghai, Guangzhou, and Hong Kong, ensuring efficient logistics to your destination, whether in North America, Europe, the Middle East, or any of our other main markets. Don't compromise on pipeline integrity and performance. Contact us today to discuss your specific project requirements, request a detailed quotation, or obtain technical data sheets for our API 6D Full Bore Ball Valve with full Mill Test Report documentation.
Frequently Asked Questions (FAQ)
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Q: What is the key difference between a "Full Bore" and a "Reduced Bore" ball valve?
A: A Full Bore (or Full Port) valve has an internal bore diameter essentially equal to the connecting pipeline's ID, causing minimal flow restriction. A Reduced Bore valve has a smaller bore, which creates a pressure drop but is often more compact and cost-effective for less critical services. -
Q: Why is the Mill Test Report (MTR) important?
A: The MTR is a certified document from the material mill that verifies the chemical and mechanical properties of the raw materials (like cast steel) used in the valve. It is crucial for quality assurance, material traceability, and is often a mandatory requirement for projects in oil & gas, power, and other regulated industries. -
Q: Can this valve be used for both on/off and throttling service?
A: While ball valves are primarily designed for reliable on/off (isolation) service, they can be used for moderate throttling in certain applications. However, for precise flow control or severe throttling duties, a control valve is generally recommended to avoid premature wear of the ball and seats. -
Q: What are the typical lead times for these valves?
A: Lead times vary based on size, pressure class, material specifications, and quantity. Standard configurations may have shorter lead times, while large sizes (e.g., above 24") or special materials may require longer manufacturing cycles. We provide accurate lead time estimates upon receipt of your detailed inquiry. -
Q: Are your valves suitable for cryogenic (low-temperature) service?
A: The standard cast steel (WCB) body is suitable for temperatures down to approximately -29°C (-20°F). For lower temperature services (cryogenic), valves constructed from materials like A352 LCB or stainless steel with extended bonnets and special seating are required. These can be offered as a customized solution. -
Q: Do you offer actuated versions of this valve?
A> Yes, absolutely. Our API 6D ball valves can be supplied as a manual unit, or they can be prepared for and/or supplied with a variety of actuators—pneumatic (double-acting or spring-return), electric, or hydraulic—to meet your automation needs. -
Q: What kind of testing is performed on each valve before shipment?
A> Each valve undergoes rigorous testing per API 598 or ISO 5208 standards. This includes a hydrostatic shell test at 1.5 times the rated pressure, a seat leakage test, and for certain classes or upon request, a high-pressure gas test. Test certificates are provided with the shipment. -
Q: How do I determine the correct pressure class (e.g., Class 150, 300, 600) for my application?
A> The pressure class should be selected based on the maximum working pressure and temperature of your system, referring to the pressure-temperature ratings defined in standards like ASME B16.34. Our technical team can assist you in selecting the appropriate class based on your process parameters.
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