Characteristics of Stainless Steel Butterfly Valves

The stainless steel butterfly valve, as a component used to achieve on/off and flow control of pipeline systems, has been widely used in many fields such as petroleum, chemical, metallurgy, hydropower, etc. 

In the known butterfly valve technology, the sealing form often adopts a sealing structure, and the sealing material is rubber, polytetrafluoroethylene, etc. Due to structural limitations, it is not suitable for industries that are resistant to high temperatures, high pressures, corrosion, and wear. A relatively advanced butterfly valve is the three eccentric metal hard seal butterfly valve, where the valve body and valve seat are connected components, and the sealing surface layer of the valve seat is welded with heat-resistant and corrosion-resistant alloy materials. The multi-layer soft stacked sealing ring is fixed on the valve plate. 

Compared with traditional butterfly valves, this butterfly valve has the advantages of high temperature resistance, easy operation, frictionless opening and closing, and compensating for sealing with the increase of torque of the transmission mechanism when closing, which improves the sealing performance and extends the service life of the butterfly valve. 　

Advantages of SUTTIMAX stainless steel butterfly valves: 

1. Easy and quick opening and closing, labor-saving, low fluid resistance, and can be operated frequently. 

2. Simple structure, small size, and light weight. 

3. It can transport mud with minimal liquid accumulation at the pipeline outlet. 

4. Under low pressure, good sealing can be achieved. 

5. Good regulation performance. 

Disadvantages of SUTTIMAX stainless steel butterfly valve: 

1. Small range of operating pressure and temperature. 

2. Poor sealing performance.

Stainless steel butterfly valves can be divided into offset plate, vertical plate, inclined plate, and lever type according to their structural forms. 

1. According to the sealing form, it can be divided into two types: relatively sealed type and hard sealed type. Soft sealing type generally uses rubber ring sealing, while hard sealing type usually uses metal ring sealing.

2. According to the connection type, it can be divided into flange connection and clamp connection.

3. According to the transmission mode, it can be divided into manual, gear transmission, pneumatic, hydraulic, and electric.