Analysis of Performance Characteristics of Fixed Ball Valve
Introduction to Fixed Ball Valves
Fixed ball valves are a modern and high-performance solution designed for long-distance pipelines and industrial applications. They are specifically engineered to handle both corrosive and non-corrosive media, with enhanced strength, safety, and resistance to harsh environments. Unlike floating ball valves, the ball in a fixed ball valve remains stationary during operation. The pressure from the fluid acting on the ball is transferred to the bearings, preventing the ball from pushing against the seat. This design reduces stress on the sealing components, resulting in lower operating torque, minimal deformation of the seat, and improved sealing performance over time. These valves are ideal for high-pressure and large-diameter applications due to their durability and reliability.
Fixed ball valves feature an advanced spring-loaded pre-seal assembly that ensures a tight seal on the upstream side. Each valve includes two seats that provide bidirectional sealing, eliminating any flow restriction and making installation more flexible. Additionally, these valves are equipped with fire-safe and static electricity prevention features, ensuring safe operation even in hazardous conditions. Their automatic pressure relief mechanism helps protect the system from overpressure caused by temperature changes or trapped fluids, further enhancing their safety and performance.
Key Features of Fixed Ball Valves
1. The fixed ball design uses self-lubricating materials for moving parts, significantly reducing friction and operating torque. The use of sealed grease also contributes to smoother operation over time.
2. A high platform structure and compliance with ISO5211 standards allow for easy and professional installation of electric or pneumatic actuators.
3. Available in full-bore or reduced-bore configurations, these valves offer low flow resistance and efficient fluid passage.
4. Metal-to-metal hard seals with a dual movable O-ring design provide excellent sealing performance, along with automatic compensation and self-cleaning capabilities.
5. A built-in spring preload system enhances the valve's ability to relieve pressure automatically, improving safety and longevity.
6. With two movable sealing seats, the valve can be installed without concern for the direction of the medium flow, offering greater flexibility.
7. A fire-safe anti-static design incorporates conductive springs between the stem and the body, as well as between the stem and the ball, to prevent static discharge that could ignite flammable substances.
8. The double fireproof protection ensures that even if the primary seal is damaged, a metal-to-metal hard seal will still maintain integrity.
9. An automatic pressure relief system allows the valve to release excess pressure caused by thermal expansion or vaporization of trapped liquids, ensuring safe operation under abnormal conditions.
10. Various actuation options are available, including pneumatic, electric, hydraulic, and adjustable types. For more details, refer to the section on actuators and control valves in the manual.
Fixed ball valves are a modern and high-performance solution designed for long-distance pipelines and industrial applications. They are specifically engineered to handle both corrosive and non-corrosive media, with enhanced strength, safety, and resistance to harsh environments. Unlike floating ball valves, the ball in a fixed ball valve remains stationary during operation. The pressure from the fluid acting on the ball is transferred to the bearings, preventing the ball from pushing against the seat. This design reduces stress on the sealing components, resulting in lower operating torque, minimal deformation of the seat, and improved sealing performance over time. These valves are ideal for high-pressure and large-diameter applications due to their durability and reliability.
Fixed ball valves feature an advanced spring-loaded pre-seal assembly that ensures a tight seal on the upstream side. Each valve includes two seats that provide bidirectional sealing, eliminating any flow restriction and making installation more flexible. Additionally, these valves are equipped with fire-safe and static electricity prevention features, ensuring safe operation even in hazardous conditions. Their automatic pressure relief mechanism helps protect the system from overpressure caused by temperature changes or trapped fluids, further enhancing their safety and performance.
Key Features of Fixed Ball Valves
1. The fixed ball design uses self-lubricating materials for moving parts, significantly reducing friction and operating torque. The use of sealed grease also contributes to smoother operation over time.
2. A high platform structure and compliance with ISO5211 standards allow for easy and professional installation of electric or pneumatic actuators.
3. Available in full-bore or reduced-bore configurations, these valves offer low flow resistance and efficient fluid passage.
4. Metal-to-metal hard seals with a dual movable O-ring design provide excellent sealing performance, along with automatic compensation and self-cleaning capabilities.
5. A built-in spring preload system enhances the valve's ability to relieve pressure automatically, improving safety and longevity.
6. With two movable sealing seats, the valve can be installed without concern for the direction of the medium flow, offering greater flexibility.
7. A fire-safe anti-static design incorporates conductive springs between the stem and the body, as well as between the stem and the ball, to prevent static discharge that could ignite flammable substances.
8. The double fireproof protection ensures that even if the primary seal is damaged, a metal-to-metal hard seal will still maintain integrity.
9. An automatic pressure relief system allows the valve to release excess pressure caused by thermal expansion or vaporization of trapped liquids, ensuring safe operation under abnormal conditions.
10. Various actuation options are available, including pneumatic, electric, hydraulic, and adjustable types. For more details, refer to the section on actuators and control valves in the manual.
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