What Is a Ball Valve?

Posted on Jan 14, 2021

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Ball valve

The ball valve is a type of valve which is sometimes also referred to as the shut off valve. The ball valve has the ability to control the flow of a liquid or gas by the means of a rotary ball.

The heart, an organ that works 24 hours no stop every day till the day you draw your last breath. With each beat, there are several liters of blood carrying the vital oxygen and the nutrients to the cells and the organs. Such a beautiful process will continue to be harmonious for many years till we die. But how does the heart manage to transport so much blood to every single cell in the body? Within the heart, there is a valve. This valve will help the heart to control and divert the blood, so the blood can be flowed to the designated area as required. Without the valve, the heart cannot function. But the concept of using the valve is not only appearing in the heart. These days, we can see several industries utilize the valve to help them regulate the equipment too. The valve has the ability to make sure the flow of fluid or any liquidized objects are under control and being regulated. This brings us to the subject of today, the ball valve


What is a ball valve?

The ball valve is a type of valve which is sometimes also referred to as the shut off valve. The ball valve has the ability to control the flow of a liquid or gas by the means of a rotary ball. It works with the ball being rotated at about 90 degrees around its axis, then the ball valve will let the medium to flow through or it is then being blocked. The ball valve has the distinctive advantages of having a long service life and capable of providing a reliable sealing over the life span. 

The ball is also possible to achieve the same effect even after a long time of not being used. This is the key factor why the ball valve has gained more popularity among the industries than the other type of the valve, such as the gate valve. Besides, the ball valve is not susceptible to contaminate the media than most of the other types of the valves. In some special scenarios, it is also possible to utilize the ball valve as a control valve. However, people seldom see this application in the industries due to the fact that the ball valve has pretty limited accuracy of the controlling of the flow rate when comparing with other types of the control valves. 


Types of ball valves

There are several types of ball valves. Each of them has its own characteristics. Here are some examples: 


● Standard ball valve

The standard ball valve is the type of ball valve which consists of parts such as the housing, seats, ball and lever for the rotation of the ball. Within the standard ball valve, there are included the ball valves which come with two, three and four ports. 


● Hydraulic ball valve

The hydraulic ball valve is the type of ball valve which is specially designed for the systems of the hydraulic and the heating. The hydraulic ball valve has the high operating pressure rating and it is also capable of resisting the hydraulic and heating oil. The hydraulic ball valve can be made from the metal materials such as the steel or the stainless steel. Within the hydraulic ball valve, there is a device called the ball valve seats. The ball valve seats have in turns helping the hydraulic ball valve to perform its function under the high operating pressure. The ball valve seats are made of materials such as polyoxymethylene. Such unique material has enabled the ball valve seats to be applied for the applications which have the high pressure and low temperature. 


● Flanged ball valve

The flanged ball valve is the type of the ball valve which is distinctive by their connection type. The ports of the flanged ball valve are connected to a piping system via a device called the flanges. The flanges are the type of device which are usually designed to fit with a certain standard. The flanged ball valve is capable of providing a high flow rate due to the fact that they mostly have a full-bore design. It is very important to keep in mind that when choosing a flanged ball valve, people also need to check the flange compression class. The flange compression class is a device which can show the people the highest pressure this connection type can withstand. 


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