Key Things to Know About Industrial Valves Manufacturers

 Key Things to Know About Industrial Valves Manufacturers

Best Ball Valves: Top Rated Models

A ball valve is something you don’t need to change very often, so choosing the best ball valves for your needs is important. This means that the first time you use it, it needs to be perfect. Choosing the best ball valve, though, isn’t that simple. We will show you the most important things to take into account when picking a ball valve in this post. As a starting point, let us review the basics of ball valves and their applications.

Basics of Globe valve

Globe valve valve is one of the most common types of valve used both in residential plumbing and industrial processes. Globe valve typically serves as a simple on/off valve. This is why they are called shutoff valves, isolation valves, or stop valves. They are operated by turning a sphere-shaped obstructer or “ball” 90 degrees (quarter-turn). There is a hole in the ball that allows the flow to pass through in one direction but stops it in another when rotated 90 degrees.

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Visually, if a valve is in the open position, which means the handle is parallel to the valve body, then flow can pass through the valve. The flow is stopped when the valve is turned 90 degrees. The flow can no longer pass through this valve body. By looking at the handle, you can see it is closed since it is perpendicular to the valve body. Reopening is as simple as sliding the valve back into alignment with the valve body. All ball valves function this way.

Optionally, ball valves come with locking handles. This is important in situations where you may accidentally hit the valve and cause it to open or close when you do not want it to do so. Whenever livestock or cattle come in contact with an outdoor application, it will accidentally open or close it. There are several ball valve formats available, so if you are in need of that, you can get it.

Applications of Ball Valves

The ball valve is used when a tight shut-off needs to be achieved. These are wide-duty valves that can handle gas and liquids, as well as liquids with suspended solids. In ships, fire safety protection systems, and chlorine manufacturers, ball valves are commonly used. It is not recommended to use them for pharmaceuticals, bioprocessing, or food and beverage applications since they can’t be cleaned easily. There may be exceptions for chemical and non-sterile applications.  

Method of Control

A ball valve is characterized by a ball-shaped disc as its closure element. A quarter-turn of the actuator opens the valve. In order for the media to pass through the valve, the hole in the ball is positioned parallel to the flow. Upon closing the valve, the ball rotates so that the hole is perpendicular to the flow, thus blocking the media flow.  

Valve Function 

The best applications for ball valves are fast stop/start functions. Known as quick-acting valves, they are operated by a 90-degree turn of the handle. With a quarter turn, operation time is minimized, and leakage can be minimized due to wear.

If high levels of accuracy are not required, ball valves can be utilized for throttling. High-velocity flow and pressure cause throttling to push the partially exposed seat to erode. Wear will eventually cause the valve to leak. By automating the manual ball valve and enabling it to move faster in response to a changing signal, leakage can be corrected.

Electric ball valve

Electric ball valve work very well with gas and liquid media. Dry chlorine, hydrofluoric acid, hydrochloric acid, and oxygen are all examples of chemicals that can be handled with this valve type. Transport of slurry is not highly recommended due to the tendency of the slurry to solidify in the cavities around the seats and ball. As a result, the valve may break due to the increased operating torque. Media trace solids should not exceed 3% according to most manufacturers.

Types 

Ball valves come as floating ball designs or as trunnion-mounted variations. Their type determines the way the ball fits into the valve. Classes are further distinguished by body styles and configurations.

Floating Ball Valves

Floating ball valves are the most common ball valve designs. In this type, the ball is not permanently attached to the stem, so there is much freedom. By pushing the ball back against the downstream seat, the pressure upstream helps create the seal.

Trunnion-Mounted Ball Valves 

A pin secures the ball, so it does not dislodge in the trunnion ball valve design. High-speed systems can benefit from this design. Trunnion valves have special segmented balls. It supports the ball using a shaft on one side and another shaft or post on the other side. This shaft can be integral to the ball or can separate. The ball and seal have less friction when using trunnion valves.

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