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Trunnion Ball Valve
Power and Precision: Trunnion Ball Valves Redefining Pipeline Reliability
Trunnion ball valves excel in high-pressure applications, thanks to their robust design and precise sealing mechanism. The trunnion-mounted ball ensures stable performance under extreme pressures, while the advanced sealing technology minimizes the risk of leakage. With their durable construction and enhanced safety features, trunnion ball valves offer unparalleled reliability and longevity in demanding industrial environments.
Why Choose Us?
Shengao's Trunnion Ball Valves
Shengao's trunnion ball valves provide unparalleled stability and performance in critical applications. Here's why they're the top choice:
  • 01
    Enhanced Stability
    Featuring a trunnion-mounted ball, Shengao's valves offer enhanced stability, reducing the risk of ball movement and ensuring reliable operation.
  • 02
    Diverse Material Selection
    Shengao offers a wide range of materials, including carbon steel and exotic alloys, to suit various operating conditions and media.
  • 03
    Precise Flow Control
    With their trunnion design, these valves deliver precise flow control, making them suitable for demanding processes that require accurate regulation.
  • 04
    High Pressure Capability
    Engineered to handle high-pressure environments, Shengao's trunnion ball valves maintain tight seals even under extreme pressures.
  • 05
    Quality Assurance
    Shengao adheres to stringent quality standards, conducting thorough testing to verify the performance and reliability of its trunnion ball valves.
  • 06
    Technical Expertise
    Shengao provides technical expertise and support, assisting customers in selecting the right valve and optimizing its performance for their specific application.
Key Components of Trunnion Ball Valve
  • Valve Body
    Forms the main structure of the valve, containing the internal components.
  • Trunnion
    Supports and positions the ball within the valve body, ensuring proper alignment and stability.
  • Ball
    Actively controls fluid flow by rotating within the valve body, guided by the trunnion.
  • Stem
    Connects the actuator to the ball, transmitting motion to regulate flow.
  • Sealing Mechanism
    Utilizes resilient seals to ensure tight shut-off and prevent leakage.
  • Actuator
    Initiates movement of the ball for opening or closing the valve, enabling flow control.
  • Anti-Static Design
    Prevents static electricity buildup, reducing the risk of ignition in flammable environments.
Advantages of Trunnion Ball Valve
  • 01
    Enhanced Stability
    Trunnion-mounted ball valves feature additional support from trunnion bearings, providing enhanced stability and reducing wear and tear on the valve components, ensuring smooth operation even under high pressures.
  • 02
    Bidirectional Sealing
    With a fixed ball supported by trunnion bearings, these valves offer bidirectional sealing, effectively preventing backflow and ensuring optimal flow control in both directions.
  • 03
    High Pressure and High Temperature Performance
    Trunnion ball valves are designed to withstand high pressures and temperatures, making them suitable for demanding applications in industries such as oil and gas, petrochemical, and power generation.
  • 04
    Reduced Operating Torque
    The trunnion-mounted design distributes the force evenly across the ball, resulting in reduced operating torque, allowing for easier operation and longer service life.
  • 05
    Wide Range of Sizes and Materials
    Trunnion ball valves are available in a wide range of sizes and materials, including carbon steel, stainless steel, and exotic alloys, allowing for customization to suit specific application requirements.
Why Choose
Trunnion Ball Valve?
Trunnion ball valves offer superior stability, bidirectional sealing, high pressure, and high-temperature performance, reduced operating torque, and a wide range of sizes and materials. These features make them ideal for critical applications where reliability, durability, and precise flow control are essential. Whether in upstream or downstream oil and gas operations, refining, chemical processing, or power generation, trunnion ball valves are a trusted choice for demanding environments.
About Shengao Trunnion Ball Valve
Valve Body Type :Ball
Valve Body Material :

Cast WCB carbon steel (general application), forged A105 carbon steel (general application), 304/316 stainless steel, alloy (corrosion resistance, extreme conditions), etc.

Valve Stem Material : When the valve body material is ordinary carbon steel, the valve stem material is usually CR13 series martensitic stainless steel (American standard 410 and 420 stainless steel materials) or higher-grade austenitic stainless steel materials. When the valve body material is stainless steel, the valve stem material is usually austenitic stainless steel (American standard SS304, SS316) with a grade no lower than the valve body material and a higher grade corrosion-resistant alloy material (Hastelloy, Monel, Inconel alloy) etc.
Valve ball material

The valve stem material is basically the same as the valve ball, plus carbon steel electroplating ENP anti-corrosion material, unless there are special requirements. The material of the ball is also ZrO2, AI2O3, SiC, Si3N4, etc.

Seat Material

The hard-sealed metal valve seat and fixed soft-sealed valve seat support ring of the ball valve should be made of the same material as the ball.
Seat sealing surface material

The valve seat material is basically the same material as the ball, except for special requirements.

Pressure level :Class 150-2500(ASME standards)or PN10~PN420
Actuator :Manual handwheel, electric actuator, pneumatic actuator, hydraulic actuator
Temperature : 

Depending on the material used, operation can occur within a temperature range of -50°C to +400°C, although specific materials may alter this range.

Size:

1/2'' to 60'' (DN 15-1500)


About the Application of
Shengao Trunnion Ball Valve
The trunnion ball valve represents an advancement in valve technology, featuring a welded construction that enhances sealing performance. Widely utilized across various industries, it serves as a critical component in pipeline sealing applications.