Ball valve is a ball that is literally placed in a passageway through which there is a flow of the fluid. You would find that there is a hole in the ball where the ball opens as well as closes. There are some ball valves that permit only 90 degree rotation while there are others which can rotate 360 degrees as well. But you need to understand that it is necessary to have 90 degree rotation in order to close or open a ball valve. There is the handle that indicates the position of the valve ball. The valve is opened when the handle is found to be lying along the axis of the valve. There are also multiport ball valves that you can find in the market. When you observe the position of the groove you would be able to get to know the flow path through the ball. There is a ball inside the valve that has actually a hole at the middle. Liquid is flowed very easily when the hole is aligned with both valves.
Three way valve
When it comes to the basic ball valve it has a two-way valve. It has a single as well as straight passageway bored that is through the ball and makes two openings one in the inlet and the other at the outlet. You can also find a three-way valve when the third hole is partially holed through the ball. The valves control the throttle in a car. If you wish that the flow needs to be shut off completely, then ball valve works best in this situation. If you thought that ball valves would develop problems after using it for long period of time, then you are wrong as it would still work perfectly when you need again and again.
Different types of ball valve
Now coming to the different types of ball valve, there are three different types. There is a full port ball valve that offers no flow restrictions. It means that the fluid can flow freely through the ball valve when it is open. Then there is a standard port ball valve that does not have an oversized ball. So you can find that the hole is one size smaller than the passageway. The third type of ball valve is a reduced port ball valve that has even a smaller hole. It helps in the flow restriction when the liquid passes through the valve.
So, the ball valves give a lot of advantages to different industries.
Different Types Of Balls
As professionals in the fitness industry our duties are manifold. Most of us encounter clients of all shapes, sizes, and abilities. In this article we will be talking about various types and applications of medicine balls.
A medicine ball, in the most basic terms, is simply a round weighted ball. There are several different types of medicine balls available to trainers today and many of them are designed for specific purposes. Some medicine balls are designed to bounce while some are specifically designed not to bounce so you don't have to chase them. Some balls have tough tread or grip for easy catching while others are smooth. You'll find medicine balls that float and are soft to the touch and some that are attached to ropes or have handles designed to be used in much the same way as a kettle bell.
So, with all of these choices which do you chose? That answer is simple yet complicated. I know that is an oxymoron, but the more you learn about medicine ball applications the more you'll understand why. Lets breakdown several different types of balls on the market today and some common uses for each.
Leather Medicine Balls
The traditional leather medicine ball has been around the longest. You've seen them in boxing movies or in old issues of strength magazines. They are still around and they still are popular with many trainers. The balls usually range in weight by a few pounds. For example, one medicine ball may have a labeled weight of 12-14 pounds. Although it is not an exact weight it usually works for most general applications.
These balls are generally easy for most people to catch for short distances and are primarily used for abdominal work, although they can be used for a variety of other exercises.
Soft Gel Medicine Balls
These medicine balls are made of a soft vinyl and are filled with a gel. They do not float and do not bounce, which makes them perfect for throwing exercises using a trampoline, or any other surface in which you do not want the ball to bounce back to you.
The gel filled medicine balls can also be found in a wider variety of sizes and are perfect for rehab work. These balls also tend to be more economical.
Medicine Balls With Grip
There are a few different types of medicine balls on the market that have additional grip on the outside. These balls are usually made of solid polyurethane and bounce when dropped or thrown against a hard surface. You can use these for just about any exercise and they are therefore the most common type of ball used by major gyms and trainers alike. Another advantage is that most of these balls actually float. This is important for aquatic fitness and sports such as water polo.
Air Filled Medicine Balls
For those trainers who do a lot of long distance traveling or who are just looking for a ball that will float and bounce, there are air filled medicine balls available. The more air put into the ball the more bounce you will get out of them. These medicine balls are commonly used with plyometrics and general resistance exercises
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