Ball valve is a common industrial pipeline equipment used to control the on-off and regulation of fluids. According to different structures and uses, ball valves can be divided into the following categories:
Fixed ball valve:
Structure: The ball is fixed in the valve body and cannot rotate. The on-off and regulation of the fluid is achieved by rotating the valve stem.
Use: Suitable for high-pressure and high-temperature fluid control, such as petroleum, chemical, electric power and other fields.
Floating ball valve:
Structure: The ball is located between two sealing surfaces and can float freely under the action of fluid pressure to ensure sealing.
Use: Suitable for large flow and high-pressure occasions, its sealing performance is good, such as ships, petroleum, chemical and other fields.
Elastic ball valve:
Structure: The ball is elastic and elastic deformation is generated by external force to ensure sealing.
Use: Suitable for high-temperature and high-pressure media, such as papermaking, chemical, metallurgy and other industries.
V-type ball valve:
Structure: The ball core has a V-shaped structure and has a shearing effect, which is particularly suitable for media containing fibers or tiny solid particles.
Uses: Suitable for flow regulation and changing the direction of fluid flow, such as chemical, petroleum, light industry and other fields.
Three-way ball valve:
Structure: There are T-type and L-type, which can distribute flow or switch flow direction in three orthogonal pipes.
Uses: Applicable to occasions where three pipes need to be connected to achieve fluid diversion or confluence.
Eccentric ball valve:
Structure: The ball is eccentrically installed in the valve body and can be rotated 90 degrees to open or close.
Uses: It has small fluid resistance and is suitable for occasions requiring low flow resistance and fast opening and closing.
Welded ball valve:
Structure: Generally used for opening and closing of pipelines, with simple structure and long service life, suitable for high pressure, high temperature, low temperature, corrosion, high viscosity and other media.
Uses: Widely used in various fluid pipeline systems.
Threaded ball valve:
Structure: Suitable for pipeline systems with small specifications, small diameters and low pressures, usually used in cooling and heating systems.
Uses: Suitable for small flow and low pressure occasions.
Jacketed ball valve:
Structure: A jacket is added to the outer layer of the ball to provide better heat insulation or cold insulation.
Use: Mainly used for flow regulation of hot water and other media, and can be used as a valve to control the temperature of the medium.
Electric ball valve:
Structure: The valve ball is driven by a motor to open and close or adjust the flow of the medium.
Use: Suitable for large pipelines and occasions that are easy to install and operate, such as automatic control systems and remote control.
Pneumatic ball valve:
Structure: Open and close driven by compressed air.
Use: Suitable for fluid control systems that require fast response and high precision.
Hydraulic ball valve:
Structure: Open and close driven by hydraulic pressure.
Use: Also used in certain specific occasions.
Soft seal ball valve:
Structure: The sealing material is soft materials such as rubber or polytetrafluoroethylene.
Use: Suitable for fluid pipelines with high sealing requirements.
Hard seal ball valve:
Structure: The sealing material is metal material, suitable for fluid pipelines used in harsh environments such as high temperature and high pressure.
High vacuum ball valve:
Structure: Usually adopts metal sealing structure, used in high vacuum system.
Use: Able to withstand high vacuum force.
In addition, ball valves can also be classified according to other standards, such as connection method (threaded connection, welding connection, flange connection, etc.) and control method (manual, pneumatic, electric, hydraulic, etc.). Each type of ball valve has its specific application scenarios and advantages. Choosing the right type of ball valve is crucial to ensure the efficient and safe operation of the pipeline system.
