The electronically controlled proportional valves are implemented to convert electrical energy into mechanical energy. There are several types of electronic pressure control valves for use with hydraulic equipment, including flow and directional valves. These types work in different forms.
The two main categories of electric proportional control valves are
- Direct-Acting Valves
- Pilot-Operated Valves
Direct-Acting Proportional Valves:
Magnetic action of the coil utilizes a Direct-acting flow valve that opens and closes directly. In an electronic pressure control valve. The main body or poppet is moved using a magnetic force generated by the electrical coil to shift the valves.
- Electromechanical device: The main body or hand tool consists of a stick with a rubber suction cup at one end, used to clean clogged drains. Controlled valves are electromechanical device that controls the flow of air and process gas.
- Direct-acting valve: They are mostly used to control proportional valve actuators, such as cylinder turbines, etc. Flow valves are control units that, when electrically energized, either shut off or allow fluid flow. The pilot-operated valve and direct-acting valve are compared control valve coils.
Pilot-Operated Flow Control Valve:
Pilot-operated proportional needle valve operates on the pressure of the liquid flow of the valve. The Pilot-operated proportional valve uses the different pressures of the medium over the valve to open and close it.
Pilot-operated valves are used to find the pressure of fluid flow in a line. Although pilot-operated valves use less electric power, you must have an available pressure to operate the valves.
- Stainless steel alloy:
Similarly, the direct-acting valve opens magnetically through direct action. We should purchase any kind of flow valve that can not be confused with an electronic control valve. We need those kinds of control valves that fulfill our equipment. Stainless steel alloy is the best choice one can make for proportional valve components. - Servo-assisted control: These are also known as servo-assisted control valves. Pilot valves are useful because they allow a small and easily operated feed to control a much higher pressure or flow feed. Pilot-operated valves work by using a smaller pilot valve to regulate the fluid flow through the main valve.
- Suitable option to store electrical power: The pilot-operated valves are a suitable option to store electrical power, and they can be a power-saving option. If you want to use less power to operate the flow control valve, then the pilot is better. It is necessary to use the proportional pressure inside the valves.
- Open and close at a certain change: These valves are automatic and are going to open and close at a certain change in pressure. We also refer to these valves as pressure differential valves, as they are sensitive to pressure changes.
Conclusion:
The types of electronic pressure control valves are categorized based on their functionality. If you have low pressure of the liquid, then it is better to use the direct-acting flow control valve. If there is a relative pressure of the liquid available, then the pilot-operated valves are a better option, as these proportional control valves need less electrical power. It is cost-saving and can reduce the overall cost of electricity if you need the relative pressure of the liquid inside the piping network.