Analysis of Performance Characteristics of Fixed Ball Valve
Overview of 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 withstand harsh environments and handle both corrosive and non-corrosive media. Unlike floating ball valves, the ball in a fixed ball valve remains stationary during operation. This design ensures that the force exerted by the fluid pressure is transferred to the bearings rather than the valve seat, preventing excessive stress on the sealing components. As a result, fixed ball valves offer low operating torque, minimal deformation of the valve seat, and excellent sealing performance, making them ideal for high-pressure and large-diameter systems.
One of the key features of fixed ball valves is their advanced spring-preloaded sealing system, which provides self-tightening functionality for upstream sealing. Each valve is equipped with two seats that can seal in both directions, eliminating any flow restriction during installation. This bidirectional sealing capability also means that the direction of the medium does not need to be considered when installing the valve, offering greater flexibility in piping systems.
Key Features of Fixed Ball Valves
1. The fixed ball design, combined with self-lubricating materials for moving parts, results in very low friction and minimal operating torque. Additionally, the use of sealed grease enhances long-term sealing and improves operational smoothness.
2. The valve features a high-platform structure and complies with the ISO 5211 standard, allowing for professional installation of electric or pneumatic actuators.
3. Available in full-bore or reduced-bore configurations, these valves provide minimal flow resistance, ensuring efficient fluid passage.
4. The metal-to-metal hard-seal O-ring design allows for two-way sealing with automatic compensation and self-cleaning functions, delivering superior sealing performance.
5. A preloaded spring increases the seating force, enabling the valve to automatically relieve pressure when necessary, enhancing safety and reliability.
6. Each valve has two movable sealing seats, providing bidirectional sealing capabilities and eliminating the need to consider flow direction during installation.
7. Equipped with a fire-safe and static-dissipating structure, conductive springs are placed between the stem and the valve body, as well as between the stem and the ball, to prevent static buildup and potential ignition of flammable media.
8. The fireproof design includes a secondary metal-to-metal seal that activates if the primary seal is damaged, ensuring continued safety in case of fire.
9. An automatic pressure relief mechanism is integrated into the valve. If pressure builds up inside the valve due to temperature changes or vaporization of the liquid, the valve can release the pressure on its own, protecting the system from overpressure damage.
10. These valves are available with optional actuation options, including pneumatic, electric, hydraulic, and adjustable types. For more details, please 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 withstand harsh environments and handle both corrosive and non-corrosive media. Unlike floating ball valves, the ball in a fixed ball valve remains stationary during operation. This design ensures that the force exerted by the fluid pressure is transferred to the bearings rather than the valve seat, preventing excessive stress on the sealing components. As a result, fixed ball valves offer low operating torque, minimal deformation of the valve seat, and excellent sealing performance, making them ideal for high-pressure and large-diameter systems.
One of the key features of fixed ball valves is their advanced spring-preloaded sealing system, which provides self-tightening functionality for upstream sealing. Each valve is equipped with two seats that can seal in both directions, eliminating any flow restriction during installation. This bidirectional sealing capability also means that the direction of the medium does not need to be considered when installing the valve, offering greater flexibility in piping systems.
Key Features of Fixed Ball Valves
1. The fixed ball design, combined with self-lubricating materials for moving parts, results in very low friction and minimal operating torque. Additionally, the use of sealed grease enhances long-term sealing and improves operational smoothness.
2. The valve features a high-platform structure and complies with the ISO 5211 standard, allowing for professional installation of electric or pneumatic actuators.
3. Available in full-bore or reduced-bore configurations, these valves provide minimal flow resistance, ensuring efficient fluid passage.
4. The metal-to-metal hard-seal O-ring design allows for two-way sealing with automatic compensation and self-cleaning functions, delivering superior sealing performance.
5. A preloaded spring increases the seating force, enabling the valve to automatically relieve pressure when necessary, enhancing safety and reliability.
6. Each valve has two movable sealing seats, providing bidirectional sealing capabilities and eliminating the need to consider flow direction during installation.
7. Equipped with a fire-safe and static-dissipating structure, conductive springs are placed between the stem and the valve body, as well as between the stem and the ball, to prevent static buildup and potential ignition of flammable media.
8. The fireproof design includes a secondary metal-to-metal seal that activates if the primary seal is damaged, ensuring continued safety in case of fire.
9. An automatic pressure relief mechanism is integrated into the valve. If pressure builds up inside the valve due to temperature changes or vaporization of the liquid, the valve can release the pressure on its own, protecting the system from overpressure damage.
10. These valves are available with optional actuation options, including pneumatic, electric, hydraulic, and adjustable types. For more details, please refer to the section on actuators and control valves in the manual.
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