What are the functions of side mounted ball valves
Date: 2025-09-17Read: 0
Side mounted ball valve is a type of valve that controls fluid flow through lateral installation. Its core functions revolve around sealing, ease of operation, durability, and adaptability, and it is widely used in fields such as petroleum, chemical, natural gas, and water treatment. The following are the main functions and features of side mounted ball valves:1、 Core control function
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Fluid on-off control
- By rotating the sphere 90 °, it can be quickly opened or closed. When the sphere channel is aligned with the valve body channel, it is in a full bore state with minimal resistance; After the sphere rotates 90 °, it intercepts the fluid and achieves zero leakage sealing.
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Applicable ScenariosPipeline systems that require frequent opening and closing, such as chemical raw material transportation, natural gas pressure regulating stations, etc.
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Bidirectional sealing
- The ball and valve seat are sealed with metal hard or soft seals (such as PTFE, PPL), which can achieve bi-directional zero leakage regardless of the flow direction of the medium, avoiding medium backflow or mixing.
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AdvantageSuitable for situations that require bidirectional flow, such as circulating water systems, multiphase flow pipelines, etc.
2、 Structural advantages and functions
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Side mounted design for easy maintenance
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Online repairThe valve can be disassembled laterally, without the need to remove the pipeline or valve body. The valve seat, ball or sealing ring can be replaced directly, greatly reducing downtime.
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Spatial adaptabilitySuitable for underground pipelines, compact equipment layouts, or spaces with limited space (such as underground pipe galleries, ship pipelines), reducing installation difficulty.
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Full bore and streamlined design
- The diameter of the spherical channel is consistent with the inner diameter of the pipeline, with extremely low flow resistance, reducing pressure drop and energy consumption, especially suitable for high viscosity or granular media.
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caseIn crude oil pipelines, full bore design can avoid medium deposition and reduce the risk of blockage.
3、 Sealing and durability function
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High performance sealing structure
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metal sealUsing materials such as Stellite alloy and hard alloy, it is resistant to high temperatures (up to 650 ℃), high pressures (Class 2500), and wear, and is suitable for working conditions such as steam and high-temperature oil products.
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soft sealPTFE or PPL valve seat providedExcellentThe chemical stability, corrosion resistance, and sealing grade reach ANSI Class VI, suitable for strong acid and strong alkali media.
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Fire safety designThe composite structure of metal and soft seal can maintain basic sealing function even after the soft seal is burned out in a fire, preventing the accident from expanding.
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Anti static and explosion-proof functions
- Spring conductive devices are installed between the sphere and the valve stem, as well as between the valve stem and the valve body, to ensure timely discharge of static electricity and prevent sparks from causing explosions, in compliance with explosion-proof standards such as ATEX and IECEx.
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Application scenariosNatural gas processing plants, refineries, and other flammable and explosive environments.
4、 Operation and automation functions
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Multiple driving modes
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manualEquipped with worm gear or lever handle, suitable for small caliber or low-frequency operation occasions.
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Pneumatic/ElectricDriven by cylinders or motors, remote automation control is achieved, supporting PLC and DCS system integration to meet the requirements of Industry 4.0.
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HydraulicSuitable for high-pressure large-diameter valves, providing stable torque output.
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Intelligent Control Expansion
- Position sensors, pressure sensors, or flow meters can be installed to monitor valve status in real-time, enabling fault warning, remote diagnosis, and adaptive adjustment.
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caseIn the smart water management system, side mounted ball valves upload switch times and leakage data through IoT modules to optimize maintenance plans.
5、 Environmental adaptability function
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Low temperature and frost resistant design
- The valve body is made of low-temperature steel (such as LCB, LC3) or equipped with an electric heat tracing device to ensure normal operation in an environment ranging from -196 ℃ (liquid nitrogen) to -46 ℃ (liquefied natural gas), avoiding brittle cracking of the sealing material.
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Corrosion resistance to hydrogen sulfide (H ₂ S)
- The valve body, sphere, and seat materials comply with NACE MR0175 standard, and are resistant to H ₂ S stress corrosion cracking through nitriding treatment or the use of super duplex steel (such as UNS S32750), suitable for sulfur-containing conditions in oil and gas extraction.