Butterfly valve

Butterfly valves and their industrial applications.

What are Butterfly Valves?

Butterfly valves, in the field of industry, play a fundamental role in regulating the flow of fluids in various processes. Its name comes from its characteristic design, which resembles a butterfly with spread wings. However, the efficiency and accuracy of these valves depend largely on the quality of their machining. In this sense, within the measuring and testing instruments, the measuring arm becomes an essential tool to ensure the dimensional accuracy of the valves, ensuring a perfect fit and optimum performance. 

The ability of the measuring arm to capture and analyze real-time data, combined with its precision and versatility, allows manufacturers to obtain detailed information about the tolerances and geometry of butterfly valves during the machining process. By deploying these devices in the industrial environment, higher quality valve production is achieved, which in turn translates into reliable and efficient performance in various industrial applications. These valves consist of a circular plate, known as a butterfly plate, which rotates on an axis within the valve body.

In the context of Industry 4.0 and the CNC Machining Revolution, butterfly valves have undergone a significant transformation in their manufacturing and industrial applications. The integration of advanced CNC machining technologies has enabled the production of butterfly valves with more precise designs, tight tolerances, and high-quality materials.

The opening and closing mechanism of the butterfly valves is based on the rotation of the butterfly plate. When the valve is closed, the plate is placed perpendicular to the flow of liquid or gas, completely blocking the passage. By rotating the plate, flow is allowed as a circular opening is created between the plate and the valve body.

The angle of the butterfly plate is essential to control the flow through the valve. By increasing the angle of rotation of the plate, a wider opening is created, allowing for greater flow. On the other hand, by reducing the angle, the flow is restricted, decreasing the flow.

This flow control mechanism is highly efficient due to the low resistance to fluid passage when the valve is fully open. The streamlined shape of the butterfly plate minimizes turbulence and pressure loss, resulting in smooth and efficient flow.

Butterfly valves are versatile and used in a wide range of industrial applications, from water supply systems and water treatment facilities to the chemical and petrochemical industries. Their compact and lightweight design makes them ideal for applications where space and weight are important.

However, in certain contexts, such as pipe systems with unidirectional flow, it is important to have a solution that provides flow control in a specific direction. This is where the axial flow check valves come into play. These valves offer unique functionality that allows fluid flow in one direction and stops flow in the opposite direction, avoiding unwanted reflux and ensuring system integrity. By combining the advantages of butterfly valves with the specific properties of axial check valves, industrial operators can achieve accurate and reliable flow in a wide range of applications.

Butterfly valve
Butterfly valve

Butterfly Valve Components.

Butterfly valves are important devices in industrial piping systems and consist of several key components that ensure their proper functioning.These components include the butterfly plate, stem, valve body and seals.

  • The butterfly plate is the central component of the valve. It is a circular disc that rotates around an axis within the valve body. Its main function is to control the flow when opening or closing. When the plate is in the closed position, it completely blocks the circulation of liquid or gas. The rotation of the plate creates an opening that allows the passage of the fluid.
  • The stem is a rod that connects to the butterfly plate and extends to the outside of the valve. Its main function is to transmit the rotation movement when opening or closing the valve. The stem is driven by a steering wheel or lever, allowing the operator to control the flow. It may also be equipped with a locking device to maintain the valve position.
  • The valve body is the main structure containing all internal components. It is usually disc-shaped and designed to withstand pressure and fluid flow. Valve bodies are usually made of high temperature and corrosion resistant materials to ensure durability and operability.
  • Seals are crucial elements in butterfly valves as they ensure proper sealing. There are several types of seals used in these valves, such as seat seals and shaft seals. Seat seals are located in the valve body and ensure a tight seal when the plate is in the closed position. Shaft seals are located on the shank and prevent leakage in the connection area.

Each component plays a fundamental role in the correct operation of the butterfly valve. The butterfly plate controls the flow, the stem transmits the movement, the valve body provides the necessary structure and resistance, and the seals ensure proper tightness. The quality and proper design of these components are essential to ensure optimal performance and long service life of the butterfly valve.

Butterfly valve components
Butterfly valve components

Butterfly Valve Applications in Industry.

Chemical and Petrochemical Industry.

Butterfly valves play a crucial role in the chemical and petrochemical industry as they provide efficient control of the flow of chemicals and hazardous materials. These valves are characterized by their compact design and their ability to regulate the flow in large pipes. Its operation consists of a circular plate that rotates on a central axis, which allows adjusting the opening and closing of the duct. In the chemical industry, butterfly valves are widely used in the transfer of corrosive chemicals, flammable liquids and toxic substances. 

For example, they are used in the precise dosing of chemicals in manufacturing processes, regulating the flow of acids and solvents in the production of pharmaceuticals, as well as controlling the flow of hazardous liquids in wastewater treatment plants. Their rugged design and ability to withstand high pressures and temperatures make them a reliable and safe choice in industrial environments where hazardous substances are handled.

Food and Beverage Industry.

Butterfly valves play a key role in the food and beverage industry as they provide an efficient and reliable solution for controlling the flow of raw materials, finished products and cleaning liquids. These valves are widely used in various stages of the manufacturing process, from raw material handling to final packaging. Their compact design and ability to provide a tight seal make them a popular choice in this industry.

In the food industry, butterfly valves are essential to regulate the flow of ingredients, such as liquids, pulps and viscous mixtures, ensuring accurate and constant dosing. In addition, they are used to control the flow of the finished product, allowing efficient packaging and proper quality control. Butterfly valves are also used to handle cleaning liquids, disinfectants and sanitary solutions, which are essential for maintaining high hygiene standards in the food industry. Its clean and easy to maintain design facilitates operation and ensures safe and pollution-free production.

Energy and Electricity Generation.

In the power and power generation industry, butterfly valves play an essential role in providing a reliable and efficient solution for regulating the flow of liquids and gases in pipeline systems.

These valves are widely used in power plants, both thermal and nuclear and renewable power plants.

In power plant piping systems, butterfly valves allow the flow of liquids and gases to be regulated at different stages of the process. For example, they are used in the intake of water to turbines, allowing to control the amount of liquid that enters to generate energy. In addition, they are used in flue gas flow control, ensuring efficient combustion and minimizing emissions.

Another example of the use of butterfly valves in the energy industry is in cooling systems. These valves regulate the flow of water or coolant to control temperature in critical equipment, such as generators and capacitors.

Pharmaceutical and Biotechnology Industry.

Butterfly valves are widely used in the pharmaceutical and biotechnology industries due to their versatility and efficiency in the control of flow at various stages of the manufacture of pharmaceutical, chemical and biological products. These valves provide a reliable solution for regulating the flow of liquids and gases in pipeline systems, ensuring precision and process safety.

In the manufacture of medicines, butterfly valves play an important role in controlling the flow of active ingredients, excipients and solvents. They allow precise and controlled dosing, ensuring the quality and uniformity of pharmaceutical products.

In addition, in chemical and biological manufacturing, butterfly valves are used to control the flow of chemicals, reagents and cell cultures. This ensures an efficient and safe production process, avoiding unwanted spills or contamination.

Water and Wastewater Treatment Sector.

Butterfly valves are essential elements in the water and wastewater treatment sector, offering an efficient and reliable solution for flow control in water supply systems, treatment plants and sewage networks.

In water supply systems, butterfly valves allow to regulate the flow of drinking water to consumers, ensuring a balanced and efficient distribution. In addition, they are used in sewer networks to control the flow of wastewater and prevent overflows or pollution problems.

In water treatment plants, butterfly valves are essential to control flow at different stages of the process, such as filtration, sedimentation and disinfection. They enable precise management of water flows and help ensure the quality and security of the drinking water supply.

Butterfly Valve Asimer
Butterfly valve

Advantages of Butterfly Valves.

Compact and Lightweight Design.

Butterfly valves are distinguished by their compact and lightweight design, which gives them important advantages over other types of industrial valves. This design facilitates the installation, maintenance and operation of systems as they require less space and are easy to transport and operate. In addition, its simplified structure reduces maintenance costs and allows easier access for inspection and repair. These advantages make butterfly valves a popular choice in many applications, improving the efficiency and functionality of the systems in which they are used.

Efficient Flow Control.

Butterfly valves provide efficient and fast flow control, thanks to their ability to precisely adjust and regulate flow. These valves allow rapid response to changes in system conditions, ensuring precise control of the flow of liquids and gases. Its design allows quick opening and closing, resulting in increased operational efficiency and optimal process control. With their ability to precisely adjust and regulate flow, butterfly valves are a reliable choice for a wide range of industrial applications.

Low Cost and Easy Maintenance.

Butterfly valves stand out as an economical option in terms of initial costs and maintenance. Its simple design and robust components allow easy installation and easy maintenance. In addition, its modular structure facilitates the replacement of individual parts without having to disassemble the entire system. These features reduce maintenance costs and make butterfly valves a cost-effective option for industrial applications that require efficient flow control without compromising the economy.

Butterfly valves at Asimer Group.

Asimer Group, leader in machining and welding of industrial pumps and valves, offers cutting-edge solutions in the field of butterfly valves and their industrial applications. Our state-of-the-art technology allows us to participate in high-quality butterfly valve projects with precision and durability. In addition, we have a team of highly trained engineers who provide customized solutions to meet the specific needs of each customer. Our machining centers ensure optimum performance, and our focus on engineering allows us to create innovative and efficient solutions.

Butterfly Valves Asimer Group
Butterfly valve