Hard-seated butterfly valves and soft-seated butterfly valves have their own advantages and disadvantages.
The advantages of a hard-seated butterfly valve include:
1. Good sealing performance: The hard sealing butterfly valve is made of metal materials, and the sealing surface can be made more accurate and the hardness is higher, so the sealing performance is better.
Long service life: Because the hard seal butterfly valve is made of metal material, it has good corrosion resistance and wear resistance, so it has a long service life.
2. Wide range of application: Hard seal butterfly valve can be applied to low temperature, normal temperature, high temperature and other environments, and can also be applied to medium and high pressure and other working conditions.
The disadvantages of a hard-seated butterfly valve include:
1. Higher: The hard seal butterfly valve is made of metal materials, and the manufacturing cost is high, so it is relatively high.
2. High installation and maintenance requirements: The installation and maintenance of hard seal butterfly valves require certain skills and experience, and if the installation or maintenance is improper, it may affect its sealing performance and service life.
The advantages of soft-seated butterfly valves include:
1. Relatively low: The soft seal butterfly valve uses elastic material as the sealing element, and the manufacturing cost is relatively low, so it is also relatively low.
2. Easy installation and maintenance: The installation and maintenance of soft seal butterfly valves are relatively simple and do not require much technology and experience.
The disadvantages of soft-seated butterfly valves include:
1. Relatively poor sealing performance: The soft seal butterfly valve uses elastic material as the sealing element, and its sealing performance is relatively poor, and it is easy to be affected by temperature, pressure and other factors.
2. Relatively short service life: Because the soft seal butterfly valve uses elastic material as the sealing element, it is easy to be affected by factors such as wear and aging, so the service life is relatively short.
To sum up, hard seal butterfly valve and soft seal butterfly valve have their own advantages and disadvantages, and the specific choice of which type of butterfly valve needs to be decided according to the actual needs and working conditions.