The flow rate is controlled by the position of the precision throttle, which is directly coupled to a linear motor. The food industry, gas blending, water blending, vacuum control, etc all employ this proportional air pressure regulator. The flow rate may be changed practically to the control electronics that enable the motor to be set via an analogue or digital signal. Stepper motor technology enables the maintenance of a fixed position even when the motor is not functioning.
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Electronic Flow Control Regulator:
The devices that can use an electronic signal to control fluid flow rate (liquid and gas) are the proportional air pressure regulators. Digital water flow regulators are used to control liquid flow rates, while electric air pressure regulator are typically used to regulate the speed of air motors and cylinders in order to handle gas pressure.
Users can obtain a digital reading of the liquid or gas flow rate, allowing them to anticipate the exact amount of flow with the use of an proportional air pressure regulator working in conjunction with a digital flow metre for closed loop control. The digital controller also serves as a flow regulator internally.
Electric Pressure Valve Function:
The proportional air pressure regulator functions as a power-operated device to control fluid flow in a variety of heavy manufacturing industries. The customers can obtain an automated digital measurement of the amount of liquid flow thanks to the electronic air pressure regulator. The output flow rate should ideally be linearly proportionate to the input signal.
Working Principle of an Electronic Flow Control Valve?
Different kinds of electronic flow controllers exist. Here, we’ll go through the model that makes use of a electronic evaporator pressure regulator and a linear stepper motor actuator.
Motor Linear Actuator:
A threaded shaft that is attached to the spinning core of a stepper motor can be used to axially move an object by pushing or pulling a nut (needle valve) that is put on it. The flow control regulator’s resolution is controlled by the thread’s pitch which is also governed by the steep angle of the stepper motor in use (full, half, quarter, etc.). The backlash that is defined as the maximum distance or angle, over which any mechanical part may be moved in one direction without applying resistive force or motion to the next part, is a factor that a stepper linear actuator is sensitive to like the majority of linear motion systems.
What Is a Stepper Motor Driven Electronic Flow Control Valve?
The distance between the needle and valve seat in this instance is managed by a stepper motor. The degree to which the location of the needles is altered affects the proportional air pressure regulator’s performance metrics including resolution, precision, and repeatability. Other factors including speed, torque, and operating pressure are mostly influenced by the stepper motor’s properties.