Understanding The Applicable Working Conditions And Mediums for Butterfly Valves

Butterfly valves are essential in various industrial applications, providing reliable control over the flow of liquids and gases. To ensure optimal performance and longevity, it is crucial to understand the applicable working conditions and media for butterfly valves.

One of the key factors to consider when selecting a butterfly valve is the working conditions it will be subjected to. This includes factors such as temperature, pressure, and the nature of the medium being handled. Butterfly valves are designed to operate within specific temperature and pressure ranges, and it is important to select a valve that is suitable for the intended working conditions.

The medium being handled is another critical consideration when choosing a butterfly valve. Different types of butterfly valves are designed to handle specific mediums, such as water, air, gas, or corrosive chemicals. It is important to select a valve that is compatible with the specific medium to ensure efficient and safe operation.

In applications where the medium may contain solid particles or abrasive materials, it is important to consider the type of lining or coating on the valve disc and seat to prevent wear and corrosion. For corrosive medias, selecting a valve constructed from corrosion-resistant materials such as stainless steel or special alloys is essential to ensure long-term reliability.

Furthermore, the type of actuation method used to control the butterfly valve should also be considered based on the working conditions and medium. Manual, pneumatic, or electric actuation can be chosen based on the specific requirements of the application.

1. Generally, in throttling, regulating control, and mud medium, the structure length is short and the opening and closing speed is fast (1/4 revolution). Low pressure cut-off (small pressure difference), butterfly valve is recommended.

2. The butterfly valve can be used when two-position adjustment, narrow passage, low noise, cavitation and vaporization phenomenon, a small amount of leakage into the atmosphere, and abrasive media.

3. When the butterfly valve is used under special conditions, such as throttling adjustment, or strict sealing requirements, or severe wear, low temperature (cryogenic) and other operating conditions, it is necessary to use a specially designed metal seal with a triple eccentric or double eccentric adjustment device Special butterfly valve for ground.

4. The centerline butterfly valve is suitable for fresh water, sewage, sea water, salt water, steam, natural gas, food, medicine, and oil that require complete sealing, zero gas test leakage, high life requirements, and working temperature of -10℃~150℃ And various acid and alkali and other pipelines.

5. The soft-sealed eccentric butterfly valve is suitable for two-way opening and closing and adjustment of ventilation and dust removal pipelines. It is widely used in gas pipelines and waterways in metallurgy, light industry, electric power, and petrochemical systems.

6. The metal-to-metal wire sealing double eccentric butterfly valve is suitable for urban heating, gas, water supply and other gas, oil, acid and alkali pipelines, as a regulating and throttling device.

7. In addition to being used as a large-scale pressure swing adsorption (PSA) gas separation device program control valve, the metal-to-metal surface sealing triple eccentric butterfly valve can also be widely used in petroleum, petrochemical, chemical, metallurgical, electric power and other fields. It is a gate valve and a stop valve. A good alternative product.

There are many types of butterfly valves, including quick cut-off and continuous adjustment, WKT manufactures pneumatic butterfly valves, electric butterfly valves. Mainly used for liquid and gas low pressure large diameter pipelines. It is suitable for occasions where the pressure loss is not high, flow adjustment is required, and the opening and closing requirements are fast; usually the temperature is below 300 ℃ and the pressure is below 40 kg (butterfly valves generally use low pressure, like domestic ones. It is rare to achieve CL600). The medium is generally used for water and gas, and the medium is not demanding. The granular medium can also be used.

As a sealed butterfly valve, it brought rapid development after the emergence of synthetic rubber, so it is a new type of shut-off valve. In our country-China until the 1980s, butterfly valves were mainly used for low-pressure valves, and the valve seat was made of synthetic rubber. By the 1990s, due to increased exchanges with foreign countries, hard-seal (metal-seal) butterfly valves developed rapidly. At present, there are many valve factories that can produce medium-pressure metal-sealed butterfly valves stably, which makes the application field of butterfly valves wider.

In conclusion, understanding the applicable working conditions and mediums for butterfly valves is crucial for ensuring optimal performance and longevity. Considering factors such as temperature, pressure, medium compatibility, and actuation methods, the right butterfly valve can be selected to meet the specific needs of any industrial application.