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Home > Industrial Equipment & Components > Valve > Ball Valve > API 6D Standard Duplex Stainless Steel Ball Valve With Full Bore Design and Fire Safe API 607

API 6D Standard Duplex Stainless Steel Ball Valve With Full Bore Design and Fire Safe API 607

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Product Spotlights

Engineered for critical service, this valve combines API 6D pipeline integrity with API 607 fire-safe certification. The duplex stainless steel construction delivers high strength and superior corrosion resistance, while the full bore design ensures minimal flow restriction. It offers reliable bidirectional sealing, versatile actuation options, and is designed for long service life in demanding oil, gas, and chemical applications, supported by ISO9001 manufacturing quality.

Negotiable MOQ: 1 Unit (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Duplex Stainless Steel (e.g., UNS S31803/S32205)

Application:

Other, Oil & Gas

Design Standard:

API 6D

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Shanghai Zhibang Valve Manufacture Co.,ltd

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Material Other, Duplex Stainless Steel (e.g., UNS S31803/S32205)

Application Other, Oil & Gas

Design Standard API 6D

Fire Safe Certification API 607 / API 6FA

Bore Design Full Port (Full Bore)

Pressure Rating Class 150 to Class 1500 (customizable)

Size Range 1/2“ to 24“ (customizable)

End Connection Flanged (RF, RTJ), Butt Weld, Threaded

Operation Manual (lever, gear), Pneumatic, Electric

Seat Material Reinforced PTFE, Metal Seats (fire safe)

As a specialized manufacturer with a strong export presence, Shanghai Zhibang Valve Manufacture Co., Ltd. is committed to delivering high-performance industrial valves that meet rigorous global standards. Our API 6D Standard Duplex Stainless Steel Ball Valve with Full Bore Design and Fire Safe API 607 certification is engineered for the most demanding applications in the oil, gas, and chemical sectors. Combining superior corrosion resistance with exceptional strength and fire safety, this valve provides a reliable, long-lasting solution for critical flow control where failure is not an option. We leverage our manufacturing expertise and ISO9001 certified quality management system to ensure every valve meets precise specifications and delivers consistent performance in the field.

This advanced ball valve is designed to offer maximum flow efficiency and safety. The full bore (full port) design ensures minimal pressure drop, allowing for near-unrestricted flow, which is crucial for pipeline efficiency and pigging operations. Constructed from duplex stainless steel, it provides an optimal balance of high strength and excellent resistance to stress corrosion cracking, pitting, and crevice corrosion, making it suitable for harsh environments containing chlorides, sour gases, and other aggressive media.

Key Technical Features & Advantages:

Superior Material Performance: Duplex stainless steel offers roughly twice the yield strength of standard austenitic grades (304/316), with excellent toughness and corrosion resistance.
API 6D Compliance: Manufactured strictly in accordance with API 6D specifications for pipeline valves, ensuring design, material, testing, and documentation integrity.
Certified Fire Safe Design: Compliant with API 607 and API 6FA standards. In a fire event, the secondary metal seat seals provide continued isolation, preventing catastrophic failure.
Bidirectional Sealing: Provides reliable sealing integrity in both flow directions, enhancing operational flexibility and safety.
Extended Service Life: The combination of robust materials and precision engineering results in low maintenance requirements and a long operational lifespan, even under cyclic and high-stress conditions.
Versatile Actuation Options: Available with manual levers, gear operators, or automated actuators (pneumatic/electric) for remote or automated process control.

Detailed Technical Specifications:

Parameter	Specification
Design & Manufacturing Standard	API 6D, ISO 17292
Fire Safe Test Standard	API 607 6th Edition / API 6FA
Body & Ball Material	Duplex Stainless Steel (UNS S31803, S32205)
Primary Seat & Seal Material	Reinforced PTFE, PEEK, or similar polymers
Secondary (Fire Safe) Seat	Metal-to-Metal (e.g., Stainless Steel)
Pressure Rating (ANSI Class)	Class 150, 300, 600, 900, 1500 (Standard)
Temperature Range	-29°C to +200°C (Standard); wider ranges available
End Connection Types	Flanged (RF, RTJ), Butt Weld, Threaded (NPT)
Size Range (Nominal Pipe Size)	From 1/2" (DN15) to 24" (DN600)
Leakage Class (Seat)	API 598 / ISO 5208 Rate A (Zero Leakage)
Face-to-Face Dimensions	ASME B16.10, API 6D
Flange Dimensions & Drilling	ASME B16.5, ASME B16.47, ISO

Benefits for Your Operations:

Enhanced Safety: The certified fire-safe feature mitigates risk in flammable service, protecting personnel, assets, and the environment.
Operational Efficiency: Full bore design reduces system pressure loss, saving pumping energy and maximizing throughput.
Reduced Total Cost of Ownership: Exceptional corrosion resistance and durability minimize replacement frequency, unplanned downtime, and maintenance costs.
Global Project Compliance: Meeting API 6D and API 607 standards facilitates approval for use in international oil & gas, petrochemical, and offshore projects.
Flexibility: Available in a wide range of sizes, pressure classes, and end connections to fit specific pipeline designs.

With an annual export value reflecting our global reach across North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang Valve has established itself as a trusted partner for critical valve solutions. Our ISO9001 certification underpins our commitment to consistent quality. Served from major ports like Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure reliable and timely delivery. Choosing our API 6D Duplex Stainless Steel Fire Safe Ball Valve means investing in a product backed by manufacturing expertise, rigorous testing, and a proven track record in demanding markets worldwide. It is a strategic choice for reliability, safety, and long-term performance. Contact us today to discuss your specific requirements and receive a tailored quotation.

Frequently Asked Questions (FAQ)

Q: What are the main advantages of duplex stainless steel over 316 stainless steel for this valve?
A: Duplex stainless steel offers significantly higher yield strength and improved resistance to stress corrosion cracking, particularly in chloride-containing environments. This translates to a valve that can withstand higher pressures and more aggressive media, often with potential for weight and cost savings due to its strength.
Q: Does "Fire Safe" mean the valve will not leak at all during a fire?
A: API 607/6FA certification requires the valve to maintain a specified level of sealing performance (low leakage rates) during and after exposure to a standardized fire test. It is designed to prevent major leakage and maintain isolation, which is critical for safety, but standards allow for minimal, defined leakage under extreme fire conditions.
Q: Can this valve be used for both on/off service and throttling?
A: While ball valves can be used for moderate throttling, they are primarily designed for reliable on/off isolation. For frequent or precise throttling control, other valve types might be recommended. However, the full bore design does offer good flow characteristics if used for occasional modulation.
Q: What is the difference between API 6D and other standards like API 608?
A: API 6D is specifically for pipeline valves (used in main transmission lines, etc.), covering design, wall thickness, end connections, and testing more comprehensively for long-distance service. API 608 is a general standard for metal ball valves, often used for general industrial applications. API 6D valves are typically required for critical oil & gas pipeline applications.
Q: Are special coatings or treatments available for extremely corrosive services?
A: Yes. While duplex stainless steel is highly corrosion-resistant, additional options like special surface treatments, hardened trim, or different alloy grades (e.g., super duplex) can be explored for specific, severe corrosive conditions. Please consult with our technical team.
Q: What documentation is provided with the valve?
A> Standard documentation includes a material test report (MTR), certificate of conformance, hydrostatic test report, and dimensional drawings. Full certification packages for API 6D and API 607 are available upon request.
Q: How does the full bore design impact valve selection?
A: Full bore valves have an internal diameter matching the connecting pipe, minimizing flow restriction. They are ideal for applications requiring full pipeline flow, pigging, or where pressure drop must be minimized. It's important to specify this requirement versus a reduced (standard) port valve.
Q: What is the typical lead time for an order?
A> Lead times vary based on size, pressure class, material grade, and quantity. Standard configurations may have shorter lead times, while custom-engineered or large-sized valves require more planning. We provide estimated lead times with every quotation.