閥門是控制流體流動的重要設(shè)備，根據(jù)不同的分類標(biāo)準，閥門可以分為多種類型。以下是一些常見的分類方法：

　　Valves are important equipment for controlling fluid flow, and can be classified into various types according to different classification standards. Here are some common classification methods:

　　按作用和用途分類：

　　Classified by function and purpose:

　　截斷閥：用于接通或截斷管路中的介質(zhì)，如球閥、閘閥、截止閥、蝶閥和隔膜閥。

　　Block valve: used to connect or block media in pipelines, such as ball valves, gate valves, globe valves, butterfly valves, and diaphragm valves.

　　止回閥：防止介質(zhì)倒流，如止回閥和底閥。

　　Check valve: prevents medium backflow, such as check valves and bottom valves.

　　安全閥：防止管路或裝置中的介質(zhì)壓力超過規(guī)定數(shù)值，達到安全保護的目的。

　　Safety valve: prevents the pressure of the medium in the pipeline or device from exceeding the specified value, achieving the purpose of safety protection.

　　調(diào)節(jié)閥：調(diào)節(jié)介質(zhì)的流量、壓力等參數(shù)，如調(diào)節(jié)閥、節(jié)流閥和減壓閥。

　　Regulating valve: regulating the flow rate, pressure and other parameters of the medium, such as regulating valve, throttle valve and pressure reducing valve.

　　分流閥：分配、分離或混合管路中的介質(zhì)，如分配閥、疏水閥。

　　Diverter valve: Used for distributing, separating, or mixing media in pipelines, such as distribution valves and drain valves.

　　按驅(qū)動形式分類：

　　Classified by driving form:

　　手動閥：需要人工操作開啟或關(guān)閉。

　　Manual valve: requires manual operation to open or close.

　　動力驅(qū)動閥：如電動閥、氣動閥，通過外部能源驅(qū)動。

　　Power driven valves, such as electric valves and pneumatic valves, are driven by external energy sources.

　　自動類：利用介質(zhì)本身的能量來使閥門動作，如止回閥、安全閥、自力式減壓閥和疏水閥。

　　Automatic type: using the energy of the medium itself to activate valves, such as check valves, safety valves, self operated pressure reducing valves, and drain valves.

　　按公稱壓力分類：

　　Classified by nominal pressure:

　　真空閥：工作壓力低于標(biāo)準大氣壓。

　　Vacuum valve: The working pressure is lower than the standard atmospheric pressure.

　　低壓閥：公稱壓力PN ≤1.6Mpa。

　　Low pressure valve: nominal pressure PN ≤ 1.6Mpa.

　　中壓閥：公稱壓力PN 為2.5、4.0、6.4Mpa。

　　Medium pressure valve: nominal pressure PN is 2.5, 4.0, 6.4Mpa.

　　高壓閥：公稱壓力PN 為10~80Mpa。

　　High pressure valve: nominal pressure PN is 10~80Mpa.

　　超高壓閥：公稱壓力PN≥100Mpa。

　　Ultra high pressure valve: nominal pressure PN ≥ 100Mpa.

　　按工作溫度分類：

　　Classified by working temperature:

　　超低溫閥：工作溫度低于—80℃。

　　Ultra low temperature valve: working temperature below -80 ℃.

　　低溫閥：工作溫度介于—40℃~—80℃。

　　Low temperature valve: The working temperature ranges from -40 ℃ to -80 ℃.

　　常溫閥：工作溫度高于—40℃且低于或等于120℃。

　　Normal temperature valve: The working temperature is above -40 ℃ and below or equal to 120 ℃.

　　中溫閥：工作溫度高于120℃且低于450℃。

　　Medium temperature valve: Operating temperature above 120 ℃ and below 450 ℃.

　　其他特殊分類：

　　Other special categories:

　　排污閥：用于排放管路中的雜質(zhì)或廢水。

　　Drain valve: used to discharge impurities or wastewater from pipelines.

　　水力控制閥：利用流體動力學(xué)原理控制閥門開閉。

　　Hydraulic control valve: using fluid dynamics principles to control valve opening and closing.

　　過濾閥：用于過濾介質(zhì)中的雜質(zhì)。

　　Filter valve: used to filter impurities in the medium.

　　以上就是我們產(chǎn)品的相關(guān)介紹，本文來源良工閥門，更多精彩內(nèi)容請點擊：http://m.szgotta.com.cn

　　The above is the relevant introduction of our product. This article is from Lianggong Valve. For more exciting content, please click: http://m.szgotta.com.cn