API 6D Pneumatic Trunnion Ball Valve With 2-Year Warranty and Mill Test Report
Product Spotlights
As a professional manufacturer with ISO 9001 certification, Shanghai Zhibang Valve Manufacture Co., Ltd. specializes in delivering high-performance industrial valves for demanding global applications. Our API 6D Pneumatic Trunnion Ball Valve represents a culmination of precision engineering and robust design, tailored for critical service in oil & gas, petrochemical, and power generation pipelines. We understand the need for reliability and safety in high-pressure systems, which is why this valve is built to meet stringent international standards. With an annual export value reflecting our global reach and a commitment to quality since 2016, we offer a product that combines operational excellence with long-term value, backed by a solid 2-year warranty and comprehensive documentation.
This valve is engineered for superior performance in isolation and control applications. The trunnion-mounted ball design is a key feature, providing stability and reducing operating torque, especially in larger sizes and higher pressure classes. This design minimizes seat wear and extends service life, making it a cost-effective solution for long-term operations. The integration of a pneumatic actuator allows for rapid, reliable remote or automated operation, essential for modern process control systems. The valve body, constructed from durable materials like carbon steel or stainless steel, ensures corrosion resistance and structural integrity under varying environmental conditions.
Key Technical Specifications & Advantages:
- Robust Trunnion Design: Features fixed ball support via upper and lower trunnions, which prevents excessive seat load and deformation, ensuring reliable sealing even after prolonged cycling.
- Advanced Sealing System: Utilizes spring-loaded seat seals (often PTFE or reinforced polymers) that maintain contact pressure, providing excellent bi-directional shut-off capability and compensating for minor wear.
- Fire-Safe Design Option: Available with secondary metal seat seals that engage in the event of a fire, containing the fluid and preventing escalation, a critical feature for safety-critical industries.
- Low Operating Torque: The trunnion support significantly reduces friction, leading to lower required actuator torque. This allows for the use of smaller, more economical actuators and reduces stress on valve components.
- Blow-Out Proof Stem: The stem is designed with a step that prevents it from being ejected under internal pressure, enhancing personnel safety and system integrity.
- Anti-Static Device: Incorporates springs or balls to ensure electrical continuity between the ball, stem, and body, preventing dangerous static charge buildup when handling non-conductive fluids.
The following table outlines some standard configurations and parameters. Customizations are available upon request to meet specific project requirements.
| Parameter | Specification / Option |
|---|---|
| Design & Testing Standard | API 6D, API 598 |
| Pressure Class (ASME) | Class 150, 300, 600, 900, 1500, 2500 |
| Size Range (NPS) | 2" - 48" (DN50 - DN1200) |
| Body Material | A216 WCB, A352 LCB, A351 CF8/CF8M, Duplex Steel |
| Seat & Seal Material | PTFE, RPTFE, PEEK, Metal (for fire-safe) |
| End Connection | RF Flange, RTJ Flange, BW (Butt Weld) |
| Pneumatic Actuator Type | Double-acting or Spring-return |
| Accessories | Limit Switches, Solenoid Valves, Positioners, Air Filter Regulator |
Benefits for Your Operation: Choosing our API 6D valve translates into tangible operational advantages. You gain a highly reliable shut-off device that minimizes leakage and downtime. The reduced maintenance needs due to the durable trunnion design lower your total cost of ownership. Furthermore, the pneumatic actuation ensures fast response times for process control, improving overall system efficiency and safety. The provision of a Mill Test Report with each valve offers full traceability and quality assurance, giving you confidence in the material integrity and manufacturing process.
With a proven track record of supplying valves to diverse markets across North America, South America, Europe, Asia, Africa, and Oceania, Shanghai Zhibang has established itself as a trusted partner in fluid control. Our ISO 9001 certified manufacturing process ensures consistent quality, while our strategic shipping ports (Shanghai, Guangzhou, Hong Kong, Beijing) facilitate efficient logistics to your location. The included 2-year warranty is a testament to our confidence in this product's durability and performance. For your next critical pipeline project requiring a dependable, automated sealing solution, consider the reliability engineered into every valve we produce. Contact us today to discuss your specifications or to request a detailed quotation.
Frequently Asked Questions (FAQ)
-
What is the main advantage of a trunnion-mounted ball valve over a floating ball design?
The trunnion design supports the ball at the top and bottom, which is particularly beneficial for larger sizes and higher pressure applications. It significantly reduces operating torque, minimizes seat wear, and provides more stable, reliable sealing performance over time compared to floating ball valves where the ball is pushed into the seat by line pressure. -
Can this valve be used for both on/off and throttling control?
While primarily designed for reliable on/off (isolation) service, it can be used for moderate throttling applications. However, for precise flow control, especially with abrasive fluids, a characterized ball or a different valve type (like a control valve) might be recommended. The pneumatic actuator allows for proportional control if equipped with a suitable positioner. -
What does the "API 6D" standard specify?
API 6D is a specification from the American Petroleum Institute for pipeline and piping valves. It covers design, manufacturing, testing, and documentation requirements for ball, gate, plug, and check valves used in pipeline service. Compliance ensures the valve meets industry-recognized criteria for safety, performance, and dimensional interchangeability. -
What is included in the Mill Test Report (MTR)?
The MTR, also called a Material Test Report or Certificate of Conformance, is a document from the material manufacturer. It provides traceability and certifies the chemical composition and mechanical properties (like tensile strength, yield strength) of the raw materials (e.g., castings, forgings) used in the valve body, ball, and stem, verifying they meet the ordered specifications. -
Are different pneumatic actuator options available?
Yes. We typically offer double-acting actuators (air to open, air to close) and spring-return actuators (fail-safe open or closed). The choice depends on your process safety requirements and available air supply. Actuators can be sized according to the required torque for your specific valve size and pressure. -
Is the valve suitable for cryogenic or high-temperature service?
With appropriate material selection (e.g., low-temperature carbon steel or stainless steel for cryogenic, high-grade alloys for high-temp) and special seat materials (like PEEK or metal), the valve can be configured for extended temperature ranges. Please specify your service temperature when inquiring. -
How is the 2-year warranty applied?
The warranty covers defects in materials and workmanship under normal use and service conditions as specified in our terms. It typically commences from the date of shipment. Warranty claims are processed through our technical support team upon review of the application and failure analysis. -
Can you provide valves with special coatings or trim for corrosive services?
Absolutely. We can apply internal coatings (like epoxy, nylon) or offer valves with super duplex stainless steel, Hastelloy, or other corrosion-resistant alloys for handling seawater, acids, or other aggressive media. These are customizable options.
Send Inquiry to This Supplier
You May Also Like
-
Forged Steel Trunnion Mounted Ball Valve, API 6D Standard, Extended Stem for Buried ServiceNegotiableMOQ: 1 Unit
-
Fire Safe API 6D Trunnion Mounted Ball Valve With Anti-Static Device and Double Block & Bleed FunctionNegotiableMOQ: 1 Unit
-
API 6D Trunnion Ball Valve for Water Distribution Networks, Epoxy Coated for Corrosion ProtectionNegotiableMOQ: 1 Unit
-
Cryogenic Service API 6D Trunnion Ball Valve, Extended Bonnet for LNG and Industrial Gas ApplicationsNegotiableMOQ: 1 Unit
-
Standard Compliant API 6D Trunnion Ball Valve With Full Technical Documentation and SupportNegotiableMOQ: 1 Unit
-
High Pressure Pipeline Valve: API 6D Trunnion Mounted Ball Valve for Oil and Gas Transmission LinesNegotiableMOQ: 1 Unit
-
API 6D Trunnion Mounted Ball Valve With Mill Test Report and 24-Month WarrantyNegotiableMOQ: 1 Unit
-
API 6D Certified Forged Steel Ball Valve for High-Pressure Shipboard PipingNegotiableMOQ: 1 Unit
-
Low Temperature Carbon Steel API 6D Marine Valve, Extended Stem for InsulationNegotiableMOQ: 1 Unit
-
API 6D Forged Steel Ball Valve for Offshore Rig Fuel and Lube Oil Transfer LinesNegotiableMOQ: 1 Unit




