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API 6D Trunnion Mounted Ball Valve, Pneumatic Actuated, ANSI Class 150-600, Carbon Steel
Product Spotlights
API 6D compliant trunnion-mounted ball valve with pneumatic actuation for high-pressure pipeline services. Carbon steel construction, ANSI Class 150-600 rating. Features low-torque operation, fire-safe design, and top-entry maintenance. Ideal for automated oil, gas, and petrochemical applications requiring reliable isolation and control.
Negotiable
MOQ: 1 Unit (Price negotiable depending on order volume and customization)
Key Specifications
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Design Standard:
API 6D
Mounting Type:
Trunnion Mounted
Actuator Type:
Pneumatic Actuated
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.
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Design Standard
API 6D
Mounting Type
Trunnion Mounted
Actuator Type
Pneumatic Actuated
Pressure Class
ANSI Class 150-600
Body Material
Carbon Steel
Operation Mode
Quarter-turn
Seat Material
PTFE / RPTFE / Metal
End Connection
Flanged (RF, RTJ)
Fire Safe Design
API 607 / API 6FA
Temperature Range
-29°C to 200°C (Standard)
As a professional manufacturer with ISO9001 certified quality management, Shanghai Zhibang Valve Manufacture Co., Ltd. proudly presents our premium API 6D Trunnion Mounted Ball Valve with Pneumatic Actuation. Engineered for demanding industrial applications, this valve combines robust construction, reliable performance, and automated control to meet the stringent requirements of global oil & gas, petrochemical, and pipeline industries. Since our establishment in 2016, we have dedicated ourselves to producing high-integrity valves that ensure safety, efficiency, and longevity in critical flow control systems.
Our valve is designed to provide superior sealing and operational stability under high pressure and temperature conditions. The trunnion-mounted design significantly reduces operating torque and minimizes seat wear, making it ideal for large-diameter and high-pressure services. Coupled with a precisely engineered pneumatic actuator, it offers fast, reliable, and fail-safe operation, enabling seamless integration into automated process control systems.
Key Product Features & Technical Advantages:
- Trunnion-Mounted Ball Design: Features a ball supported by trunnion bearings at the top and bottom. This design prevents excessive seat load and ball movement under pressure, ensuring low operating torque, extended seat life, and reliable performance in both bi-directional flow and pressure conditions.
- Pneumatic Actuator Integration: Equipped with a double-acting or spring-return pneumatic actuator. Provides rapid quarter-turn operation (typically 90°), with options for positioners, limit switches, solenoid valves, and other accessories for complete automation and remote control capability.
- Robust Construction & Materials: The valve body is manufactured from high-grade carbon steel (e.g., A216 WCB) for excellent strength and corrosion resistance. Critical internal components, such as seats and seals, are available in various materials like reinforced PTFE, RPTFE, or metal to suit specific service media (hydrocarbons, water, chemicals) and temperature ranges.
- Advanced Sealing System: Incorporates a multi-seal system including primary seat seals, secondary stem seals (often multiple sets), and body seal gaskets. This design ensures bubble-tight shut-off (typically meeting API 598/ISO 5208 standards) and contains pressure effectively, even after prolonged cycling.
- Fire-Safe Design: Many models are designed to meet API 607, API 6FA, or ISO 10497 fire-safe standards. In case of fire, special metal-to-metal secondary seals engage to maintain a degree of shut-off, preventing catastrophic failure.
- Anti-Static & Blowout-Proof Stem: The stem is designed with an anti-static device to prevent sparking from static electricity. A blowout-proof stem design ensures the stem cannot be ejected from the valve body under pressure, enhancing operational safety.
- Easy Maintenance & Service: Features a top-entry or fully welded body design. Top-entry models allow for in-line maintenance of internal parts (seats, ball, stem seals) without removing the valve from the pipeline, significantly reducing downtime and maintenance costs.
Technical Specifications & Configurations:
| Parameter | Specification / Option |
| Design & Manufacturing Standard | API 6D, ASME B16.34, API 608 |
| Pressure Rating (ANSI Class) | 150, 300, 400, 600 (Customizable up to Class 2500) |
| Size Range (Nominal Bore) | Typically from 2" (DN50) to 48" (DN1200) or larger |
| End Connection Standard | Flanged per ASME B16.5 (RF, RTJ), Butt-weld (BW) per ASME B16.25 |
| Seat & Seal Materials | Standard: PTFE / RPTFE. Optional: Nylon, PEEK, Metal (Inconel, Stellite) |
| Pneumatic Actuator Air Supply | Standard: 4-7 bar (60-100 psi). Other pressures available upon request. |
| Operation Time | Varies with size and actuator; typically from a few seconds to 30 seconds. |
| Optional Features | Locking device, gear operator (manual override), by-pass valve, drain/vent ports, extended stem for insulation. |
Benefits for Your Operations:
- Enhanced System Reliability: The trunnion design provides stable operation with minimal wear, reducing unplanned shutdowns and maintenance frequency.
- Improved Process Efficiency: Pneumatic actuation allows for fast, precise, and repeatable valve positioning, optimizing process control and response times.
- Long-Term Cost Savings: Durable construction and top-entry maintenance design lower total cost of ownership by extending service intervals and simplifying repairs.
- Broad Application Compatibility: Suitable for a wide range of services including crude oil, natural gas, refined products, water, and certain chemicals within its pressure-temperature envelope.
- Global Compliance: Manufactured to internationally recognized API standards, facilitating project approvals and ensuring interoperability in global supply chains.
Frequently Asked Questions (FAQ):
-
Q: What is the main advantage of a trunnion-mounted ball valve over a floating ball valve?
A: The trunnion-mounted design supports the ball on fixed trunnions, which drastically reduces the operating torque required, especially for larger sizes and higher pressure classes. It also minimizes seat deformation and wear, leading to longer service life and more reliable sealing in demanding applications. -
Q: Can this valve be used for both on/off and throttling control?
A: Primarily designed for reliable on/off (isolation) service. While some degree of flow modulation is possible, it is not generally recommended for precise throttling control due to potential cavitation and seat erosion. For continuous throttling, a control valve is more suitable. -
Q: What types of pneumatic actuators are available, and what are their fail-safe modes?
A: We offer both double-acting (air-to-open, air-to-close) and spring-return (single-acting) actuators. Spring-return actuators provide a fail-safe action (fail-open or fail-close) in case of air supply loss, which is critical for safety-related applications. -
Q: Is the valve suitable for sour service (containing H2S)?
A: For sour service applications as defined by NACE MR0175/ISO 15156, specific material grades (e.g., carbon steel with proper hardness control) and trim options must be selected. We can provide valves compliant with NACE requirements upon request. -
Q: What is the typical delivery time for a custom-sized or specially configured valve?
A: Standard sizes and configurations from our inventory have shorter lead times. For custom orders (e.g., special materials, unusual sizes, specific actuator configurations), the lead time depends on complexity and is typically communicated in our formal quotation. -
Q: How do you ensure the quality and performance of your valves?
A: Our manufacturing process is ISO9001 certified. Each valve undergoes rigorous testing, including shell test, seat test (high-pressure and low-pressure), and often fire test if specified. Test reports are provided with the product. -
Q: Do you provide technical support and documentation?
A: Yes. We provide comprehensive documentation including datasheets, dimensional drawings, material test certificates, valve test reports, actuator manuals, and installation & maintenance instructions. -
Q: Can the pneumatic actuator be replaced with an electric or hydraulic one?
A: Yes. The valve design is adaptable. While this product focuses on pneumatic actuation, we can mount compatible electric or hydraulic actuators based on your project's power availability and control system requirements.
Backed by our ISO9001 certification and a proven track record of supplying valves across diverse markets including North America, Europe, Southeast Asia, and the Middle East, Shanghai Zhibang Valve stands as a reliable partner for your critical flow control needs. Our annual export value reflects the consistent trust placed in our products by international clients. We invite you to experience the durability, performance, and value engineered into every API 6D Trunnion Mounted Ball Valve. Contact our sales team today to discuss your specific application requirements, request a detailed quotation, or arrange for product samples and testing. Let us provide you with a robust, automated valve solution that enhances the safety and efficiency of your operations.
Send Inquiry to This Supplier
1Yr
Business Type
Manufacturer
Year Established
2016
Annual Export Value
US$1 Million - US$1.5 Million
Product Certifications
ISO9001
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