A manual ball valve is a type of valve that controls the flow of fluid by manually operating a handle or handwheel. It is widely used in industrial pipeline systems. Its core structure consists of a valve body, a ball, a valve stem, sealing components, and an operating device. The central part of the ball has a through hole. When the through hole is in the same direction as the pipeline, the fluid can pass through smoothly, achieving the open state; when the handle is rotated 90 degrees to make the ball's through hole perpendicular to the pipeline direction, the fluid flow is cut off, achieving the closing function.
Due to its rapid opening and closing and simple operation, the manual ball valve has significant application value in water treatment, petrochemicals, natural gas transportation, HVAC, and other systems.
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manual ball valve Specification parameters
Material: WCB, ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, CF8 (304), CF3 (304L), CF8M (316), CF3M (316L), Ti
Nominal outer diameter: DN50 - DN350
Nominal pressure: PN1.6 - 25MPa
Applicable temperature: -46℃ - 500℃
manual ball valve Working principle
The working principle of a manual ball valve is based on the rotational movement of the ball. When it is necessary to open the valve, the operator rotates the operating handle counterclockwise, and the valve stem drives the ball to rotate, causing the circular hole on the ball to align with the pipeline, allowing the fluid to flow smoothly. Conversely, when it is necessary to close the valve, the operator rotates the operating handle clockwise, and the ball rotates to a position perpendicular to the pipeline, at which point the circular hole is closed, and the fluid cannot pass through. By adjusting the angle of rotation of the ball, the flow rate of the fluid can be controlled to a certain extent.
manual ball valve Characteristics and Advantages
- Simple structure: The structure of the manual ball valve is relatively simple, consisting of only a few key components. It is easy to manufacture and maintain.
- Operational convenience: The manual ball valve is easy to operate and has a small size. It can be made with large diameters, making it convenient for installation and use in pipeline systems.
- Sealing performance is reliable: The sealing surfaces of the manual ball valve remain in a closed state most of the time, and are less likely to be eroded by the medium. Therefore, the sealing performance is reliable.
- Wide application range: The manual ball valve is suitable for various media and temperature conditions, and can meet the needs of different industrial fields.
- Durable: The spherical body is made of wear-resistant material, which can withstand high pressure and high flow rate of fluids, thereby extending the service life of the valve.
manual ball valve Application
Manual ball valves have been widely used in various fields due to their excellent performance and wide range of applications. For example:
- Chemical Industry: In the chemical industry, manual ball valves are used to control the flow of various chemical media, ensuring the stability and safety of the production process.
- Petroleum: During the process of oil extraction and processing, manual ball valves are used to control the transportation and distribution of oil and gas, as well as for the protection and maintenance of equipment.
- Natural gas: In the natural gas transmission system, manual ball valves are used to control the flow and pressure of natural gas, ensuring the safety and stability of the transmission process.
- Water treatment: In the water treatment system, manual ball valves are used to control the on/off and adjustment of water flow, as well as for cleaning and maintenance of the equipment.
- Pharmaceuticals: During the pharmaceutical production process, manual ball valves are used to control clean and sterile fluids, ensuring product quality and safety.
manual ball valve factory
