Different Types of Electromagnetic Valves and How They Work
EM Valves: 5 Types You Need to Know
Every industry has its own set of unique terms and acronyms. If you’re not familiar with them, it can be difficult to keep up with discussions in your field.
The same is true for EM valves. EM valves are electronic-motorized (electromechanical) valves that use a solenoid to open and close the valve. They have quickly become one of the most popular types of valves on the market because of their many benefits.
While there are many different types of EM valves, here are 5 that you need to know:
1 – Ball Valves
Ball valves are the most common type of EM valve. They are used to control the flow of liquids and gases in pipelines and systems. Ball valves are easy to operate and can be either opened or closed with just a turn of the handle.
2 – Butterfly Valves
Butterfly valves are used to control the flow of liquids and gases in pipelines and systems, just like ball valves. However, butterfly valves offer a greater degree of control than ball valves. They can also be opened or closed with just a turn of the handle.
3 – Globe Valves
Globe valves are used to regulate the flow of liquids and gases in pipelines and systems by controlling the amount of obstruction in the pipe. Like ball and butterfly valves, globe valves can be easily operated with just a turn of the handle.
4 – Gate Valves
Gate valves are used to stop or start the flow of liquids or gases in pipelines and systems. They work by using a disc-shaped gate that is controlled by a stem. When the stem is turned, the gate opens or closes, which stops or starts the flow of liquid or gas. Gate valves require more effort to open and close than other types of EM valves, but they provide greater accuracy when regulating flow rates.
How EM Valves Work: The Basics
Electromechanical (EM) valves use a solenoid to convert electrical energy into linear mechanical motion. This motion opens and closes the valve, controlling the flow of fluid. EM valves are often used in high-pressure or high-temperature applications because they can withstand greater stress than other types of valves.
There are two main types of EM valves: rotary and linear. Rotary EM valves are used in applications where there is a limited space for the valve to move, such as in fluid Couplings. Linear EM valves are used in more traditional applications, such as regulating the flow of water or gas.
EM valves are actuated by a solenoid. A solenoid is an electromagnet that creates a magnetic field when current flows through it. This magnetic field interacts with the armature of the valve, causing it to move and open or close the valve.
There are several factors that determine how an EM valve will operate:
- The type of solenoid
- The voltage of the solenoid
- The current flowing through the solenoid
- The position of the armature
EM Valve Applications for Increased Efficiency
EM valves have a wide range of applications in many industries for increased efficiency.
Some common applications are: controlling the flow of fluids in pipelines, regulating the pressure of gases and liquids in tanks and containers, and isolating or shutting off sections of pipelines.
EM valves can also be used for flushing, venting, and priming lines and equipment.
EM valves are simple to operate and are available in both manual and automatic versions.
They can be used for on/off or throttling control, depending on the application.
EM valves offer accurate and repeatable control over the flow of fluids, which can result in increased efficiency in many industrial applications.
New EM Valve Designs for Greater Flexibility
With the introduction of blockchain technology and its potential opportunities in various industries, new valve designs are being developed to provide the necessary flexibility for different applications.
The traditional EM (electromagnetic) valves used in industry are not well-suited for many of the new opportunities that blockchain technology presents. These valves are limited in their range of movement and lack the necessary flexibility for some of the new possibilities that blockchain technology offers.
A new design is needed to provide the necessary range of motion as well as the ability to be adaptable to a wide variety of applications. This will require a valve that is not constrained by a single linear path, but instead has multiple points of movement.
This new design will use electromagnetic force along with other mechanisms to create a valve that is more flexible and versatile. It will also be able to handle a wider range of pressures and temperatures than traditional EM valves.
This new design is still in development, but it shows great potential for helping to usher in the next wave of innovation in the blockchain industry.
EM Valves – An Invaluable Component of the Modern Process Plant
The modern plant process would not be the same without the existence of EM (electromagnetic) valves. The electromagnetic actuator provides a tight shut-off for valves used in piping and tubing systems, and does so with minimal power requirements. This makes it ideal for use in many industrial applications, where reliable performance is of utmost importance.
EM valves are typically constructed from stainless steel, brass or other corrosion-resistant materials. They are also fitted with a number of seals that provide a tight seal against leakage, even under high pressure conditions. EM actuators work by generating an electromagnetic field that attracts an armature to the valve plug, thus sealing it off and preventing the flow of fluid.
Most EM valves are “normally open” meaning that they allow flow when there is no power applied to the actuator. When power is applied, the armature is attracted to the valve plug, closing off the opening and stopping the flow of fluid. This makes them ideal for use in safety-critical applications where a quick shut-off is required in case of an emergency.
EM valves have found widespread use in industries such as oil and gas, petrochemical processing, water treatment, and pharmaceuticals. With their ability to provide a reliable shut-off and withstand high pressure conditions, they are essential components of any modern process plant.