Brief description of the maintenance and composition of the electric three-way ball valve

Briefly describe the maintenance and composition of electric three-way ball valve
I. Overview:
The electric three-way ball valve is composed of a high-precision electric actuator and a three-way ball valve. It is a rotary-type cut-off type electric three-way ball valve. It has the advantages of tight shut-off, compact structure, light weight and convenient maintenance. Electric three-way ball valves are widely used in pipeline automation control of corrosive media such as gas, liquid, steam and oil.
The two-seat sealed three-way ball valve has a compact structure, beautiful appearance and good sealing performance. It can switch the flow of media in the pipeline. It is also possible to connect or close two channels that are perpendicular to each other.
The four-valve sealed three-way ball valve has beautiful appearance and compact structure. It can not only switch the flow direction of the medium, but also connect the three channels to each other. At present, it can also close any channel and connect the other two channels for flexible control. Confluence or splitting of media in the pipeline.
Second, electric three-way ball valve medium flow principle
The three-way ball valve is divided into L type and T type.
L-type electric three-way ball valve is suitable for the switching of medium flow direction, which can connect two channels perpendicular to each other: T-type electric three-way ball valve three-way ball valve is suitable for medium shunt, merge or flow direction switching, T-shaped channel can make three The passages communicate with each other or connect two of them. The three-way ball valve of the electric three-way ball valve generally adopts two valve seat structures, and can also adopt a four-valve structure according to user requirements.
Third, electric three-way ball valve electrical parameters
Electric actuator type: angular travel electronic electric actuator.
Technical parameters and performance: Please refer to the corresponding actuator and valve positioner manual.
Control accuracy: 0.1%~3.1% adjustable.
Accept control signals: 0~10mA.DC, 4~20mA.DC or 1~5V.DCv
Button selection: 1. When the input signal is interrupted: “Interrupt” mode (on, off, off)
2, positive and negative action selection
3. Control accuracy selection. The automatic opening and closing position of the moving device is automatically positioned and calibrated, which is convenient and accurate.
According to the input signal and the position of the electric device, the intelligent step adjustment is automatically positioned to suppress the oscillation precision.
Output electric device position signal: 4~20mA.DC corresponds to the electric device fully closed and fully open.