In the industries, flow control commonly uses butterfly valves. They are very cheap, inexpensive, and consistent. These valves are used to control fluids, gases, or slurries within pipes. To know why they are important, we must familiarize ourselves with parts of the butterfly valve and how they operate.
What is a Butterfly Valve?
Butterfly valve: A butterfly valve is a quarter-turn valve. It swings open and closed through a mere 90-degree movement of the handle or actuator. The disc rotates to have a flow when the disc is open. When folded, the disc closes off.
The Primary Parts of Butterfly Valves
All the butterfly valves have important components that assist them in operating. These are the Butterfly valve parts that are the key:
- Body
The inside parts are in the body and attached to the pipeline. It may be a lug, wafer, or flanged design as per the installation rule.
- Disc
The flow is regulated by the disc. It rotates to permit or shut off the passage. The disc placed may be metal, stainless steel, or other resilient materials.
- Stem
The stem has attached the disc to the handle or actuator. It conveys motions so that the disc may turn with ease.
Seat
On closing the valve, there is a tight seal on the seat. It blocks leakage, and it is typically fabricated out of rubber or elastomers.
Seal
There is an added protection against leakage, which comes in the form of the seal. It is safe under pressure or a high-temperature range that tends to injure the valve.
Handle or Actuator
The valve is either simply operated with a manual handle or automatically with an actuator. Actuators can be hydraulic, pneumatic, and electric.
What is the mechanism of working Butterfly Valve parts together?
The parts of the butterfly valve are significant. The disc is wound up by the stem. There is movement of the disc within the body. The seal and chair prevent spills. The movement is easy due to the handle or actuator. Coupled, they direct the flow with speed and safety.
Butterfly Valve Functions
Butterfly valves are quite popular in a variety of industries due to the large number of functions they offer.
- Open or close valve – Instantly open or close the flow with a quick turn.
- Control flow -The disc may be left partially open to control flow.
- Avoid backflow- Backflow prevention is achieved by a tight seal.
- Conserve space- The thin body frame occupies little space.
Benefits of Butterfly Valve
Butterfly valves are selected due to several reasons:
- It is light in weight, in comparison to other valves
- Simple to fit and service
- Cheap in big pipelines
- Rapid actuation quarter-turn actuation
Typical Butterfly Valve Uses
Butterfly valves are operated in:
- WTPs
- Chemical industries
- Beverage processing and foods
- Gas and oil pipeline
- HVAC systems
Summary of Key Parts
This is a summary of the parts:
- Body
- Disc
- Stem
- Seat
- Seal
- Handle/actuator
List of Advantages
- Simple design
- Fast operation
- Reliable sealing
- Versatile use
- Affordable cost
Conclusion
Butterfly valves are low-complex and potent tools in the manipulation of fluids. The body of the actuator of each part has a critical role. Learning the parts of a butterfly valve will make us understand why it is a favorite in most industries. Their compact design, simplicity of operation, and robust operation have made them the best choice. To learn more information about the industrial valves, check the comprehensive guides and reputed suppliers.
