Butterfly valves are also divided into many types. Different types of butterfly valves have different operating conditions and different effects.
Question: What is the function of the butterfly valve? What are the butterfly valves used for?
Bundor Valve: Butterfly valve is a general term, also called flap valve. If it is subdivided down, there are many types of butterfly valves. Different types of butterfly valves have different working conditions and different functions.
Below we will analyze the function of butterfly valves according to several common butterfly valve types, soft sealing butterfly valve, hard sealing butterfly valve, signal butterfly valve, and aluminum alloy butterfly valve.
Soft seal butterfly valve
The soft sealing butterfly valve refers to the butterfly valve whose sealing surface is made of rubber or fluoroplastic. This kind of butterfly valve has good sealing performance. Rubber-sealed soft-sealed butterfly valves are mostly used in weak acid and weak alkali medium pipelines such as water, oil, steam, etc., and are used more in water system projects. Fluoroplastic sealed butterfly valves are used in pipelines with corrosive media, such as the petrochemical industry.
The disadvantages of soft-sealed butterfly valves are that they are not resistant to high temperatures and high pressures.
Hard seal butterfly valve
The seal of hard-sealed butterfly valve is hard alloy or stainless steel, this kind of butterfly valve can withstand high temperature, high pressure, and wear resistance. It can be used in petroleum, metallurgy, coal and other industries.
The disadvantage of hard-sealed butterfly valves is their poor sealing performance.
Signal butterfly valve
The signal butterfly valve is inseparable from the fire-fighting system. It is mainly installed in buildings and connected to the fire-fighting alarm system to provide operation monitoring and alarm signals for the fire-fighting system. The signal butterfly valve is always open in daily life. Extinguish the fire when it affects the sudden fire. The main function of the signal butterfly valve is to be used for fire alarm.
Aluminum alloy butterfly valve
The valve body is made of aluminum alloy butterfly valve, which is suitable for air conditioning and industrial water treatment equipment, and has a strong anti-condensation function. The use of aluminum alloy die-cast valve body can effectively prevent corrosion.