Advantages and disadvantages of pneumatic powder butterfly valve
Advantages
1. The hydrodynamic friction is small, and the protruding surface is less brushed and corroded by chemicals.
2. The workload of opening and closing is saved.
3. The injection of chemicals is not restricted, will not interfere with the flow, and will not reduce the pressure.
4. Simple appearance, short structure, good production and processing performance, and wide use.
Thirdly, the disadvantages of butterfly valve are as follows:
1. It is easy to cause corrosion and scratch in the middle of the raised surface, and maintenance is more difficult.
2. The specification is very large, the internal space must be designed to a certain opening, and the opening and closing time is long.
3. The structure is more complex.
The type of gate width can be divided into wedge gate butterfly valve and vertical gate butterfly valve according to the shape of the convex surface. Wedge gate butterfly valve can be divided into single gate, double gate and ductile gate. Vertical surface gate butterfly valve can be divided into single gate and double gate. According to the position of inch thread of valve stem, it can be divided into two types: bright stem butterfly valve and non rising stem butterfly valve.
