Q: What is the function of a butterfly valve? What is a butterfly valve used for?
Valve: Butterfly valve is a general term, also known as flap valve. If further divided, butterfly valves can be divided into many types. Different types of butterfly valves have different operating conditions and produce different effects.
Below, we will analyze the functions of butterfly valves based on several common types of butterfly valves, including soft seal butterfly valves, hard seal butterfly valves, signal butterfly valves, and aluminum alloy butterfly valves.
Soft sealing butterfly valve
Soft sealing butterfly valves refer to butterfly valves with rubber or fluoroplastic sealing surfaces, which have good sealing performance. Rubber sealed soft sealing butterfly valves are often used in pipelines with weak acids and alkalis such as water, oil, and steam, and are more commonly used in water system projects. Butterfly valves sealed with fluoroplastics are used in pipelines with corrosive media, such as in the petrochemical industry.
The disadvantage of soft sealed butterfly valves is that they are not resistant to high temperature and high pressure.
Hard sealed butterfly valve
The sealing of hard sealed butterfly valves is made of hard alloy or stainless steel, which can withstand high temperature, high pressure, and wear resistance. It can be used in industries such as petroleum, metallurgy, and coal mining.
The disadvantage of hard sealed butterfly valves is their poor sealing performance.
Signal butterfly valve
The signal butterfly valve is closely related to the fire protection system and is mainly installed in building buildings. It is interconnected with the fire alarm system and provides operation monitoring alarm signals for the fire protection system. The signal butterfly valve is always in an open state in daily life. If someone accidentally closes it, it will affect the use of fire extinguishing in the event of a sudden fire. The main function of the signal butterfly valve is to be used for fire alarm.
Aluminum alloy butterfly valve
The valve body material is made of aluminum alloy butterfly valve, suitable for air conditioning and industrial water treatment equipment, with strong anti condensation function. The use of aluminum alloy die-casting valve bodies can effectively prevent corrosion.
