Butterfly Valve 101: Here’s all you need to know

According to the Butterfly Valve Market study, the worldwide market for butterfly valves is expected to grow to about 6860.09 million dollars [1] by 2028. Butterfly valves are liked because they control the flow of liquids or gases well. They don’t cause much pressure to drop and can handle much flow without much care, saving money. But these valves come in different sizes. You need to pick the right size and shape of a butterfly valve for what you need it for. You must also check it regularly to ensure it works safely and well. Let’s learn more about butterfly valves and get some tips from experts on keeping them working great.

Butterfly Valve Construction and Working Principle 

Butterfly valves work by turning a quarter of a circle. They are really useful for either stopping or controlling the flow of liquids. Such BF valves comprise two offsets of the disc from the valve body’s center. Some major butterfly valve components are: 

  • Valve body 
  • Disc
  • Seat 
  • Stem 
  • Seals 

Butterfly Valve actuation 

Here are four different ways to control the opening and closing of valve speed. 

Manual: simple and inexpensive valve operations using a handwheel, crank, or lever to control the stem and the disc

Electric: four 20 mA control signals are used via a bi-directional motor for process control in non-critical and light-duty modulation activities.

Pneumatic: the valve is operated through a piston within a closed cylinder. These are useful for controlling highly flammable liquids like petrochemicals, Oil, and Gas.

Hydraulic: These actuators use pressurized oil instead of air. The aim is to achieve high control during valve operations. 

Diverse usages of Butterfly Valve 

Butterfly valves are used in various industries, such as: 

  • Fluid control in water supply, collection, distribution, and pumping stations
  • Fluid control in the pharmaceutical, chemical, and food industry
  • To control aggressive media involved in refineries at extreme temperatures and pressure 
  • Used for jack-up rigs, ballast systems, and firefighting apparatus in the ship-building
  •  Regulating and isolating the flow in power generation units 
  • Preventing backflow in some situations

Size considerations 

Butterfly valves come in lots of different sizes. It can be a few inches or several feet. So, choosing the right size is important for the safe operation. Butterfly valves that follow ANSI, API, and ISO standards are good choices. They are reliable and high-quality, meeting safety, performance, and lasting use standards.

Picking the valve’s size depends on what you need it for. For example, the common sizes for big pipes in places like chemical plants or water treatment centers range from 2 inches to 96 inches. So, looking at the specifications to choose the right type, size, and valve dimensions is important.

Practical Usage Tips for Butterfly Valve  

  • Ensure the valve is correctly installed
  • The flow direction should align with the arrow on the valve body. 
  • Perform periodic maintenance to check for wear and tear on the valve sealings. 
  • Operate the valve within the specified pressure and temperature limits. 
  • Do not tighten the valve too much as it may damage the seals and reduce its lasting. 
  • When used in a dusty environment or with corrosive materials, periodically clean the valve to ensure smooth operation. 

Guarantee the safety and efficiency of your industry with premium butterfly valves from Moglix Solutions! To learn more, contact Moglix Business today!



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