Electric three-way regulating valves are widely used to precisely control process parameters such as pressure, flow rate, temperature, liquid level, etc. of gases, liquids, steam and other media to maintain them at given values. Suitable for dividing a fluid into two flows through a three-way valve or merging two fluids into one through a three-way valve.
Electric three-way regulating valveThe working principle mainly includes the following aspects:
Electric drive device: The electric three-way regulating valve receives control signals through the electric drive device and drives the valve core to change the opening of the valve, thereby achieving regulation of fluid flow, pressure, and temperature in the pipeline. The electric drive device consists of an electric motor, a reducer, and an actuator, which can automatically control the opening of the valve core according to the input of control signals.
Feedback mechanism: The electric three-way regulating valve uses feedback signals (such as pressure, pressure difference, temperature) from the valve output to be transmitted to the actuator through a signal pipe, driving the valve disc to change the valve opening to achieve precise regulation. This type of regulating valve is divided into two types: direct acting and indirect acting. The direct action type works by utilizing the principle of balancing elastic elements (such as springs, bellows) with feedback signals; The indirect action type adds a commander (pilot valve), which amplifies the feedback signal and drives the movement of the main valve disc through the actuator.
Electric three-way regulating valveThe main characteristics of
1. The T-shaped valve core hole can connect or switch three orthogonal pipelines to each other, playing a role in diversion or merging; The L-shaped channel connects two pipes that are orthogonal to each other. Cut off another channel to change the flow direction of the medium.
2. The two seat sealed three-way ball valve has a compact structure, beautiful appearance, and good sealing performance. It can switch the flow direction of the medium in the pipeline. It can also connect or close two perpendicular channels.
3. The four seat sealed three-way ball valve has a beautiful appearance and a compact and reasonable structure. It can not only switch the flow direction of the medium, but also connect the three channels to each other. At the same time, it can close any channel and connect the other two channels, flexibly controlling the merging or splitting of the medium in the pipeline.
4. The electric three-way internal thread ball valve has two seat and four seat sealing structures, and the valve core hole has two structural forms: L-shaped and T-shaped. By controlling the rotation angle of the valve core and changing the connection state between the valve core hole and the pipeline port, different combinations of control for the three branch pipes can be achieved. The three-way ball valve has a large flow capacity and can control gases, liquids, and vapors, making it more suitable for controlling high viscosity, fibrous granular fluids. It is also suitable for occasions with strict sealing requirements.