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Home > Industrial Equipment & Components > Valve > Ball Valve > API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance thumbnail-3

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance thumbnail-4

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance thumbnail-5

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance photo-1

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API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance photo-3

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance photo-4

API 6D Duplex Stainless Steel Ball Valve for Chemical Processing With Chloride Resistance photo-5

Product Spotlights

Engineered for harsh chemical processing, this API 6D compliant ball valve uses Duplex Stainless Steel for superior chloride and corrosion resistance. It ensures safety, reduces downtime with extended service life, and offers flexible configurations (sizes 1/2"-24", Class 150-1500, multiple ends/actuation). Backed by ISO9001 certification and global export experience, it delivers reliable performance in critical applications.

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

Key Specifications

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Material:

Other, Duplex Stainless Steel (UNS S32205/S31803)

Application:

Other, Chemical Processing

Design Standard:

API 6D / ASME B16.34

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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 (UNS S32205/S31803)

Application Other, Chemical Processing

Design Standard API 6D / ASME B16.34

Pressure Rating Class 150 to Class 1500

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

Size Range 1/2 inch to 24 inch

Operation Manual Lever, Gear Operated, Pneumatic, Electric

Seat Material PTFE, RPTFE, PEEK, Metal Seated

Temperature Range -29°C to 200°C (-20°F to 392°F)

Fire Safe Design Optional API 6FA / API 607 compliant

As a professional valve manufacturer established in 2016, Shanghai Zhibang Valve Manufacture Co., Ltd specializes in providing robust fluid control solutions for demanding industrial applications. Our API 6D Duplex Stainless Steel Ball Valve is engineered specifically for the harsh environments of chemical processing, where resistance to chlorides and other corrosive media is paramount. This valve represents a fusion of rigorous international standards and advanced metallurgy, designed to ensure long-term reliability, safety, and performance in your critical processes, helping to minimize downtime and maintenance costs.

Core Product Features & Technical Advantages:

Superior Corrosion & Chloride Resistance: Fabricated from Duplex Stainless Steel (typically UNS S32205/S31803), this valve offers an exceptional balance of strength and corrosion resistance. The high chromium, molybdenum, and nitrogen content provides outstanding performance in environments containing chlorides, acids, and other aggressive chemicals, significantly reducing the risk of Stress Corrosion Cracking (SCC) compared to standard stainless steels.
API 6D & ASME Compliance: Designed and manufactured in full compliance with API 6D specification for pipeline valves and ASME B16.34 for pressure-temperature ratings. This ensures adherence to stringent quality, design, testing, and documentation requirements for the oil, gas, and chemical industries.
Robust Construction for High Pressure: Available in pressure classes from Class 150 to Class 1500, the valve features a full port or reduced port design, a reinforced body structure, and a blowout-proof stem for safe operation under high differential pressures.
Versatile Sealing Options: Equipped with advanced seat materials to suit various service conditions:
- Soft Seated (PTFE/RPTFE/PEEK): For bubble-tight shut-off and low-temperature applications.
- Metal Seated: For high-temperature services, abrasive media, or fire-safe requirements (optional API 607/6FA compliance).
Multiple Actuation & Connection Choices: Offers flexibility for integration into any system:
- Operation: Manual lever, gear operator, pneumatic actuator, or electric actuator.
- End Connections: Flanged (RF, RTJ), Butt Weld (BW), or Threaded (NPT).
Extended Service Life & Low Maintenance: The combination of duplex steel's erosion-corrosion resistance and low-friction seat design minimizes wear. A secondary sealant injection fitting (optional) allows for in-line maintenance without removing the valve from the pipeline.

Detailed Technical Specifications:

Parameter	Specification
Design & Testing Standard	API 6D, ASME B16.34, API 598 (Shell Test)
Body & Trim Material	Duplex Stainless Steel (UNS S32205/S31803)
Size Range (Nominal)	1/2" to 24" (DN15 to DN600)
Pressure Class	Class 150, 300, 600, 900, 1500 (PN16 to PN250)
Temperature Range	-29°C to 200°C (Standard Soft Seat); Higher with Metal Seat
Seat Material (Standard)	Reinforced PTFE (RPTFE)
Stem Seal	Graphite Packing or PTFE V-Rings
Fire Safe Option	Available (Compliant with API 607/6FA)
Leakage Class	API 598: Class VI (Soft Seat) / Class IV (Metal Seat)

Benefits for Your Chemical Processing Operation:

Enhanced Safety & Reliability: Mitigates the risk of valve failure due to corrosion in chloride-rich environments, protecting personnel, assets, and the environment.
Reduced Total Cost of Ownership (TCO): The extended service life and reduced maintenance frequency lower replacement part costs and unplanned shutdowns.
Process Efficiency: Full port design minimizes pressure drop, while smooth quarter-turn operation allows for quick and easy flow control.
Supply Chain Flexibility: With annual export values between US$1-1.5 Million and major shipment ports including Shanghai, Guangzhou, Hong Kong, and Beijing, we ensure timely and reliable delivery to global markets across North/South America, Europe, Asia, Africa, and Oceania.
Customization & Support: As a manufacturer, we can tailor valve specifications, including special trim materials, extended necks, anti-static devices, or lock-out devices, to meet your precise P&ID requirements.

Shanghai Zhibang's commitment to quality is underscored by our ISO9001 certification, ensuring consistent manufacturing processes and product traceability. Our valves are trusted in chemical processing plants, offshore platforms, and pipeline networks worldwide. By choosing our API 6D Duplex Stainless Steel Ball Valve, you are not just purchasing a component; you are investing in a durable, high-performance solution backed by a manufacturer with proven export capability and a focus on international standards. Contact us today to discuss how this valve can strengthen your corrosion management strategy and provide reliable service in your most challenging applications.

Frequently Asked Questions (FAQ)

Q: Why is Duplex Stainless Steel specifically recommended for chloride-containing services?
A: Duplex stainless steel has a mixed austenitic-ferritic microstructure, providing nearly double the yield strength of standard 316 stainless steel and significantly higher resistance to pitting, crevice corrosion, and Stress Corrosion Cracking (SCC) caused by chlorides. This makes it ideal for chemical processing, seawater, and sour gas environments.
Q: What is the main difference between API 6D and other valve standards like API 608?
A: API 6D is specifically for pipeline valves (isolation and control) and covers design, materials, testing, and documentation requirements for the pipeline industry. API 608 is for metal ball valves in general refinery/petrochemical service. API 6D typically involves more rigorous testing (e.g., full bore pressure testing) and documentation traceability.
Q: Can this valve be used for both on/off service and throttling control?
A: While ball valves are primarily designed for isolation (on/off), they can be used for moderate throttling. However, for precise control over long periods, especially with erosive or coking fluids, a control valve is recommended. Extended use in a partially open position for throttling may accelerate seat wear.
Q: Are your valves suitable for sour service (H2S environments)?
A: Yes, our duplex steel valves can be supplied compliant with NACE MR0175/ISO 15156 standards for sour service upon request. This involves specific material chemistry controls, hardness verification, and special testing protocols.
Q: What lead times can I expect for standard sizes and pressure classes?
A: For standard configurations (e.g., Class 150/300, flanged ends, sizes up to 12"), lead times are typically competitive due to our manufacturing setup. Exact timelines are provided upon inquiry and depend on current order volume and any required customization.
Q: Do you provide actuation packages, and can they be mounted at your facility?
A: Yes, we offer a full range of pneumatic, electric, and hydraulic actuators from reputable brands or our own assembly. We can mount, set up, and test the complete actuated valve assembly (including controls) before shipment, providing a ready-to-install package.
Q: How do you ensure quality control during manufacturing?
A: Our ISO9001-certified quality management system governs the entire process. This includes material certification (MTC), in-process inspections, dimensional checks, and final testing per API 598 (shell, seat, backseat). Full documentation packages, including test reports and certificates, are provided.
Q: What after-sales support and warranty do you offer?
A: We provide a standard warranty against defects in material and workmanship. Technical support is available for installation, operation, and troubleshooting. We also maintain an inventory of common spare parts like seats, seals, and stems for faster turnaround on maintenance needs.