All About Butterfly Valves

Perhaps the most attractively named valve is the butterfly valve. Did you know that it was used in the prototype of the first steam engine? We have come a long way since then. Today butterfly valves are made with superior metals that can withstand heavy pressure and corrosives.

This butterfly valve is a shut-off valve. The construction of the valve is simple, but very effective with a rotating disc that acts as a shut-off. Its function is to regulate the flow of a medium, similar to a ball valve. The rotational motion of the disk in the butterfly valve India can stop as well as regulate the flow.

Working of a Butterfly Valve

The beauty of the butterfly valve lies in its simplicity. It uses a simple rotating action to effectively maintain flow. Like the ball valve, the butterfly valve also comes under the category of quarter-turn valves. It denotes valves that are ‘quarter-turned’ or rotated by a quarter when operational.

The basic design of a butterfly disc is circular with a disc at the centre. The disc is located at the center of the pipe. A rod passes through the disc. This is the actuator that controls the movement of the disc. It can be used to turn the disc parallel or perpendicular to the body of the valve. This movement of the disc where it rotates on the rod is the origin for the term ‘butterfly’. That is, the disc is the butterfly!

In a pipe, the disk is position at the centre. The actuator passes through this disk with a control mechanism lying outside the pipe. We turn the actuator to control the movement of the disc, which in turn controls the movement of the medium. The flow of the medium is stopped when the disc is parallel and resumed when it turns perpendicular. The movement of the disc may also be incremental to regulate the flow. This is achieved by adding gears to the valve handle that can be adjusted to achieve the required flow.

Applications of Butterfly Valves India

Butterfly valves are ideal in some of the most demanding applications, especially when we are dealing with large amount of water or slurry medium. This makes it ideal in many high-demand applications. In most cases, the heavy pressure will damage the valve structure. But in the case of the butterfly valve, the simple design is very effective in dealing with very large volumes without any damage.

Because the valve can completely open up and be built to any size, it is also very effective when dealing with slurry mediums. It is used for cooling water and air systems, such as fire protection systems. We also use it in slurry carrying pipes, including sewage systems. Most compressed gas flow systems are controlled by a butterfly valves because the valve can handle high pressure.

Butterfly valves are used widely in industrial applications. They are found widely in chemical, F&B, and pharmaceutical industries. In fact, butterfly valves have replaced the once more commonly found ball valve.

Advantages of Butterfly Valves India

Easy to operate: The valve is very easy to operate where you just have to turn the actuator. Large-scale butterfly valves have a gearbox where a hand wheal is used to turn the gears. This is a simple operation that is easy to operate.

Less space: Butterfly valves take up very little space. The design means just a disc in the middle of the pipe. Hence, it is ideal when we don’t have a lot of space. It can be accommodated in any space — big or small.

Lightweight: The butterfly valve India uses very few materials and has a simple design, which means a very light body. With new materials being invented to make valves lighter and stronger, we have increasingly more lightweight options. This is a huge benefit when we want a lightweight installation. It can easily fit in light pipes. Other similar valves like the ball valve can be quite heavy and needs a lot of support. In contrast, the butterfly valve can fit anywhere and barely adds to the overall weight.

Butterfly valves India are also easy to maintain and fairly inexpensive. All these qualities combine to make it the preferred option in valves.

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