What Are The Different Types of Control Valve?

Posted by James Brown on March 23rd, 2020

A control valveis a remarkable piece of machinery which helps in the regulation of the flow of matter, which is either gaseous or fluid in nature through internal passages, which open and close as the case may be. They are an indispensable component of a wider control loop which is applied for the implementation of a process.

These control valves are used to acknowledge instructions from the corresponding central controller and then adjust and alter the inside openings accordingly. In short, it can be said that the valve fluctuates the rate of flow by itself. Composed of three elements namely- the controller, the valve and the actuator, these elements come together to induce a synergizing effect. On the basis of number of plugs, flow characteristics and action, these valves can be classified into the following types:

On the basis of action

When such valves are fabricated on the basis of action, these control valves can be classified into- air to open and air to close valves. This implies that in case the supply of air fails, the valve will either become fully closed or fully open which is contingent upon the safety agenda of the process. For instance, if the valve is used to control the flow of fuel, the valve would close completely in case of an air failure.

On the basis of number of plugs

On the basis of number of plugs, these valves can be distinguished into single-seated valves and double-seated valves. Both work phenomenally well under suitable conditions and are equipped with a number of benefits. One such benefit of the single-seated valve is that it can be completely closed and hence, the variation of the flow till 100 percent can be attained.

On the basis of flow characteristics

Flow characteristics are defined as how the rate of flow changes with the corresponding movement. Such flow characteristics are primarily dependent upon the shape and size of the plug. Under this, valves are classified into two categories namely- ideal or inherent characteristics and installed or effective characteristics. When the flow characteristics are defined by the shape and size of the plug it is known as inherent characteristic and when the valve is connected to a pipeline, it is known as installed characteristics. 

Hence, these valves form an essential component of a process. Apart from such valves, there are also mini valves which perform such functions effortlessly, similar to that of the valves which are defined above. Performing such important functions, these valves including the mini valves are in constant demand throughout the year and as these components perform such important functions, you need to ensure that they are of the highest quality. Air Mite with their cutting-edge technology and years of experience, ensure that each product they provide to you is of the utmost quality making them amongst the best in the industry.

James Brown is the author of this article. For further detail about Mini Valve. Please visit the website: airmite.com