Butterfly Valves

A butterfly valve is a simple valve type that uses a rotating disc to regulate flow.

The main parts of the valve are:

• Body: Withstands pressure and protects the internal parts.
• Disc: A rotating plate that can be fully open, closed or somewhere in between.
• Stem: Connects the disc to the operating mechanism.

When the valve stem is turned, the disc rotates. This regulates the amount of flow in the pipeline. The valve is easy to operate and requires only a small amount of torque.

Special attention should be paid to making sure the valve seals are in good condition. The seals prevent leakage and ensure efficient valve operation. It is also important to check that the stem is not rusted or worn.

A butterfly valve is an important part of many industrial systems. Different types vary according to their applications, structure and operating principles.

Concentric butterfly valves are the most common. They are simple, reliable and suitable for many applications. In these valves, the disc rotates around an axis that runs through the centre of the valve.

Another type is the double eccentric butterfly valve. This model is designed to reduce contact between the disc and the seal during opening and closing, which extends the service life of the valve.

The triple eccentric butterfly valve provides the best performance. Its structure significantly reduces friction and wear, making it ideal for high-pressure and high-temperature applications.

Materials are also important to consider. Butterfly valves can be made from steel, stainless steel or PVC, for example. Our selection includes a wide range of butterfly valves for different applications. Each type has its own benefits and is suitable for different industrial needs.

The material choices of a butterfly valve are central to its operation and durability. The most commonly used materials include stainless or acid-resistant steel, cast iron and brass.

Acid-resistant steel is an excellent choice because of its corrosion resistance. This material is well suited to demanding environments where the valve is exposed to moisture and chemicals. Cast iron is a more cost-effective option and provides good durability in less demanding applications.

Butterfly valves are widely used in different industries and building technology. Their applications are especially found in systems where fast and efficient flow control is needed.

• Industry
  In industry, butterfly valves are popular in the chemical industry and food industry, for example. They are used because they provide good tightness and are easy to maintain.
• Building technology
  In building technology, butterfly valves are used in heating, ventilation and air conditioning systems, for example. They are also effective in water distribution and cooling systems.
• Refineries
  In oil and gas refineries, butterfly valves are essential for regulating flows. They can withstand high temperatures and pressures.
• Energy production
  In energy production plants, such as power plants, butterfly valves are used to control steam and water. They play an important role in the operation of turbines and other equipment.

Butterfly valves therefore provide versatile and reliable solutions for many different needs.

Butterfly valves are widely used in industrial processes because they provide efficient flow control.

Typical applications include:

• Water treatment plants
• Oil refineries
• Chemical plants

In these environments, the main benefit is the valve’s ability to regulate high flow rates with low pressure loss. Reliability plays an important role in industrial applications. Butterfly valves are known for their long service life. Their structure also allows easy maintenance, which reduces the risk of downtime.

Materials include:

• Stainless steel
• Acid-resistant steel
• Cast iron
• PVC

Depending on the application, we choose the material that best withstands the operating conditions. When selecting a butterfly valve, it is important to consider its suitability for specific media and temperatures. This ensures that the process operates efficiently and safely.