Detailed Technical Explanation And Application of Double-Ball Floating Ball Valve

The Double Ball Floating Ball Valve is an advanced fluid control device, specially suitable for high-pressure, high-temperature and low-temperature environments in industries such as petroleum, natural gas and chemical engineering. With its unique double isolation design and excellent sealing performance, it has become a key component in many industrial pipeline systems.

1. Structure and Features of the Double Ball Floating Ball Valve

The Double Ball Floating Ball Valve adopts an innovative design to ensure superior performance even under demanding operating conditions. Its main features include:

• Double Isolation: This design effectively avoids the risk of fluid leakage through the cooperation of two balls. Even when the valve is closed, it can ensure complete isolation of the fluid passage, improving the safety and reliability of the system.

• Bleed Function: This function reduces the internal pressure of the valve by releasing accumulated gas or liquid, helping to improve the long-term stability of the valve and reduce the occurrence of faults.

• Low-Temperature Adaptability: The stem extension device enables the Double Ball Floating Ball Valve to operate stably in low-temperature environments down to -196°C, making it suitable for flow control and regulation of low-temperature media such as liquefied natural gas (LNG).

• Unidirectional Sealing Design: The valve is equipped with a unidirectional sealing function, which can maintain sealing performance and prevent medium leakage even in low-temperature and high-pressure environments.

• API 6D Fire-Safe Design: Compliant with the API 6D fire-safety standard, it ensures that the valve can continue to operate, maintaining sealing performance and reliability in extreme high-temperature or fire conditions.

• Multiple Connection Methods: The valve offers a variety of connection methods, including threaded connection, welding and flanged connection. It can adapt to different installation requirements, greatly improving installation flexibility.

2. Working Principle of the Double Ball Floating Ball Valve

The working principle of the Double Ball Floating Ball Valve is based on the rotation of the balls. Through an external operating mechanism (such as a handwheel or electric actuator), the bore of the ball is aligned with the fluid passage in the pipeline, thereby controlling the opening and closing of the fluid. Unlike traditional floating ball valves, the Double Ball Floating Ball Valve provides more stable sealing performance through the cooperation of two balls and can withstand higher working pressure and flow rate.

3. Technical Advantages of the Double Ball Floating Ball Valve

• High Sealing Performance: The double-ball design and bleed function enable the valve to provide strong isolation and sealing effects, effectively preventing leakage in high-pressure or low-temperature environments.

• High Pressure and Low-Temperature Resistance: The valve is adapted to extreme temperature and high-pressure environments, suitable for special working conditions such as liquefied natural gas (LNG) and chemical reactions.

• Low Maintenance and Long Service Life: Made of highly wear-resistant and corrosion-resistant materials, the valve features a long service life and low maintenance costs, reducing the overall operating cost of the system.

• Flexible Installation Options: Multiple connection methods are available for different industrial systems. Whether it is welded, flanged or threaded connection, it can meet various needs.

4. Application Fields of the Double Ball Floating Ball Valve

The Double Ball Floating Ball Valve is widely used in the following fields:

• Petroleum and Natural Gas: In the process of oil and gas exploration, storage and transportation, the valve provides reliable fluid control to ensure the safe transportation of fluids.

• Chemical Engineering and Oil Refining: In chemical reactions, solvent transportation and gas treatment processes, it ensures the accuracy and stability of fluid control.

• Liquefied Natural Gas (LNG): Due to its low-temperature adaptability, the valve plays an important role in the transportation and storage of LNG.

• Thermal Power Plants and Nuclear Power Plants: It is used to control high-pressure steam and water flow, ensuring the normal operation of power generation equipment.

• Offshore Platforms: On offshore oil and gas platforms, the valve is widely used in oil and gas pipelines and storage equipment due to its corrosion resistance and high-pressure resistance.