The types of ball valves can be divided according to different classification standards, mainly including the following types:
Classification by ball structure:
Floating ball valve: The ball is not fixed to the valve body and can move freely along the flow direction. This type of ball valve is easy to manufacture and maintain, with low cost, and is suitable for low-pressure occasions.
Fixed ball valve: The ball is fixed to the valve body and cannot move freely along the flow direction. The sealing performance of the fixed ball valve is stable and is suitable for high-pressure and large-caliber occasions.
Classification by drive mode:
Manual ball valve: The ball is driven to rotate by manually rotating the handle or handwheel to achieve fluid on and off.
Pneumatic ball valve: The ball is driven to rotate by a pneumatic device (such as a cylinder), which is suitable for occasions requiring remote control or automatic control.
Electric ball valve: The ball is driven to rotate by an electric device (such as a motor), which is suitable for occasions requiring remote control or automatic control.
Classification by function:
Two-way ball valve: Only two channels, used to control the on-off or flow direction switching of the fluid.
Three-way ball valve: With three channels, it can realize the diversion, confluence or flow direction switching of the fluid.
Classification by material:
Metal ball valve: Such as carbon steel ball valve, alloy steel ball valve, stainless steel ball valve, etc., suitable for high pressure, high temperature and corrosive media.
Non-metal ball valve: Such as ceramic ball valve, plastic ball valve, etc., suitable for low pressure, low temperature and non-corrosive media.
Other special types:
High platform flange ball valve: Suitable for occasions that require convenient installation and maintenance.
Ash unloading fixed ball valve: Specially used for ash unloading system of powdered materials.
Jacket insulation ball valve: Suitable for special working conditions such as high temperature and low temperature.
Internally threaded ball valve: Suitable for occasions with limited space.
These classification methods help users choose the appropriate ball valve type according to specific needs to ensure that it can operate effectively under different working conditions.