If you are new to the world of valves, you might be wondering, “What parts do industrial valves consist of?” They are relatively simple machines with just a few working parts. However, it is imperative that these parts are functioning correctly and in tandem, in order to ensure that the gases or liquids that they are controlling are flowing properly. If you’re going to be working with industrial valves, it pays to know these important parts.

The Body

The body of an industrial valve has no inherent function itself, but it’s the bronze casing that keeps all of the parts together in an enclosed space and ensures that they are properly spaced apart in order to work efficiently. Although bronze is the most common type of body, there are other specialized bodies that are used for industrial valves that need to contain more volatile substances. For example, Alloy 20 is frequently used for industrial valves that are used to control and contain sulfur.


Think of the bonnet as the body’s armor. While the body keeps all of the inner parts in place, the bonnet protects the body from the elements and any potential physical damage. It is usually bolted onto place right onto the body, and if you want to replace any of the parts of your industrial valve, you will have to remove both the body and the bonnet in order to get to them.


The handle is usually located at the very top of the valve’s body and bonnet and is used to manually control the flow of the valve’s content. Not all industrial valves have a handle. These valves are referred to as automatic, as the control of the valve’s content occurs within the valve itself, rather than being operated by hand.


You will find a stem on an industrial valve whenever a handle is present. The stem passes through the entirety of the body and bonnet. When the handle is operated, a disc inside of the unit is activated, controlling the flow of the contents of the valve. The stem is what carries the motion of the handle to the disc inside of the unit.

Industrial valves are not particularly complex pieces of machinery. However, their simplicity is what makes them so perfect to perform their jobs. Knowing the parts of your valve will help you easily identify any problems that you have with it in the future and will aid in replacing the faulty part. Contact a company like Van Valve Service Centre & Sales Ltd valve service for more information.