Butterfly valve advantages:
1. It is convenient, quick and labor-saving, and has low fluid resistance. It can be operated frequently.
2. Simple structure, small size and light weight.
3. The mud can be transported and the liquid is accumulated at the mouth of the pipe.
4. A good seal can be achieved at low pressure.
5. The adjustment performance is good.
Butterfly valve disadvantages:
1. Use pressure and operating temperature range is small.
2. Poor sealing.
The butterfly valve can be divided into a bias plate type, a vertical plate type, a slant plate type and a lever type according to the structure. According to the sealing form, it can be divided into two types: a relatively sealed type and a hard sealed type. The soft seal type is generally sealed with a rubber ring, and the hard seal type is usually sealed with a metal ring.
According to the connection type, it can be divided into flange connection and clip type connection; according to the transmission mode, it can be divided into manual, gear transmission, pneumatic, hydraulic and electric.
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