Butterfly valve is a control valve with simple structure. Its opening and closing part is a disc-shaped butterfly plate, which rotates around its own axis on the valve body to achieve the purpose of opening, closing or adjustment. The butterfly valve is usually less than 90 from fully open to fully closed. Butterfly valves and butterfly valve rods are not self-locking. For the positioning of the butterfly plate, a worm reducer shall be installed on the valve rod. The use of worm gear reducer can not only automatically lock the butterfly plate at any position, but also improve the operation performance of the valve. Shanghai Lianggong valve manufacturer introduces the application knowledge of butterfly valve.

1、具有良好的控制特性來自流量。蝶閥旋轉90即可快速啟閉，操作簡單。因此，它被廣泛應用于石油、化工、冶金、水電行業應用等諸多領域。

1. It has good control characteristics from flow. The butterfly valve can be opened and closed quickly by rotating 90, and the operation is simple. Therefore, it is widely used in petroleum, chemical industry, metallurgy, hydropower industry and many other fields.

2、隨著密封技術的發展，蝶閥的密封圈技術也得到了進一步的提高。由于過去結構特性的限制，不適用于高溫、高壓、耐腐蝕、耐磨等行業的不足。高分子復合材料技術和方法取代傳統方法，密封面層表面被耐高溫、耐腐蝕的合金材料所取代。因此，行業專用蝶閥應用廣泛。

2. With the development of sealing technology, the sealing ring technology of butterfly valve has been further improved. Due to the limitation of structural characteristics in the past, it is not suitable for high temperature, high pressure, corrosion resistance, wear resistance and other industries. Polymer composite technology and methods replace the traditional methods, and the surface of sealing surface layer is replaced by high temperature and corrosion-resistant alloy materials. Therefore, industry-specific butterfly valves are widely used.

3、一般在節流、節流控制和污泥介質中，結構長度短，啟閉速度快(1/4轉)。低壓切斷，推薦蝶閥。

3. Generally, in throttling, throttling control and sludge medium, the structure length is short and the opening and closing speed is fast (1 / 4 turn). Low pressure cut-off, butterfly valve is recommended.

4、蝶閥適用于淡水、污水、海水、鹽水、蒸汽、天然氣、食品、醫藥、石油等要求完全密封、零氣體泄漏試驗、要求高壽命和工作溫度之間的產品。-10度和150度各種酸、堿等管道。

4. Butterfly valves are suitable for products requiring complete sealing, zero gas leakage test, high service life and working temperature, such as fresh water, sewage, seawater, brine, steam, natural gas, food, medicine, petroleum, etc- Various acid, alkali and other pipelines at 10 degrees and 150 degrees.

5、蝶閥也可用于二位調節，通道變窄，噪音低，有氣穴和放氣現象，少量泄漏到大氣和磨蝕性介質中。

5. The butterfly valve can also be used for two position regulation, with narrow channel, low noise, cavitation and deflation, and a small amount of leakage to the atmosphere and abrasive media.

以上是上海良工閥門廠家為大家介紹的關于蝶閥在實際應用中經常用到的場景。隨著技術的發展，蝶閥產品的應用可能會越來越多。

The above is the scene often used in practical application of butterfly valve introduced by Shanghai Lianggong valve manufacturer. With the development of technology, the application of butterfly valve products may be more and more.