With the continuous development of social economy, the requirements for industrial equipment from all walks of life are also higher and higher. Pneumatic rubber lined butterfly valve is a valve widely used in industry. This article will introduce the application of pneumatic rubber lined butterfly valve in industry in detail.
1. Basic principle of pneumatic rubber lined butterfly valve
Pneumatic rubber lined butterfly valve is composed of pneumatic actuator, butterfly plate, valve seat, valve rod, valve rod gasket, spring pressure plate, lining, etc. It generates air pressure signal through the air source, controls the movement of the pneumatic actuator, and makes the butterfly plate rotate, thus achieving the purpose of opening and closing the pipeline. At the same time, the rubber lining material can seal different media and has a wide range of applications.
2. Application field of pneumatic rubber lined butterfly valve
Pneumatic rubber lined butterfly valves are widely used in chemical, pharmaceutical, electric power, petroleum, metallurgy, light industry, food and other industries. Among them, the chemical industry is one of its main application fields. Because the chemical industry has many kinds of media and bad working environment, the pneumatic rubber-lined butterfly valve has the characteristics of corrosion resistance, wear resistance and good sealing, which can meet the requirements of the chemical industry.
3. Advantages of pneumatic rubber lined butterfly valve
① Good corrosion resistance
The lining of pneumatic rubber lined butterfly valve is made of rubber material, which can well resist the erosion of corrosive media such as acid, alkali and salt.
② Strong wear resistance
Pneumatic rubber lined butterfly valve is prone to wear due to lining friction during use. However, the hardness of rubber lining material is lower than that of steel, so the abrasion resistance is relatively strong.
③ Good sealing
The lining material of the pneumatic rubber-lined butterfly valve has good sealing performance to different media, which can ensure that the pipeline does not leak.
④ Convenient maintenance
The pneumatic rubber-lined butterfly valve has simple structure, is easy to repair and replace, and saves maintenance cost and time.
4. Precautions for selection of pneumatic rubber lined butterfly valve
① Temperature range
The selection of pneumatic rubber-lined butterfly valve needs to consider the temperature range of the medium, and select the lining, valve rod and other components of different materials.
② Pressure rating
The selection of pneumatic rubber-lined butterfly valve needs to consider the pressure grade of the pipeline and select appropriate valve body, spring pressure plate and other parts.
③ Media type
The selection of pneumatic rubber-lined butterfly valve needs to consider the properties of the medium, such as corrosivity, viscosity, flow rate, particle content, etc.
To sum up, pneumatic rubber lined butterfly valve has the advantages of wear resistance, corrosion resistance and good sealing, and has been widely used in chemical, pharmaceutical, electric power, petroleum and other industries. However, the temperature range, pressure grade and medium type should be paid attention to during the selection to ensure its normal operation and prolong its service life.
Post time: Mar-10-2023