一、進(jìn)口氣動(dòng)三通球閥概述

      氣動(dòng)三通球閥（Pneumatic three-way ball valve）由氣動(dòng)活塞執(zhí)行機(jī)構(gòu)和三通球閥組成。改變球芯與管道的相對(duì)位置，可以對(duì)三條管路流體實(shí)行不同的組合控制。
    氣動(dòng)三通球閥以壓縮空氣為動(dòng)力源，接受控制系統(tǒng)的開(kāi)關(guān)信號(hào)，通過(guò)電磁閥換向，操作球閥按規(guī)定要求對(duì)管路進(jìn)行切換。

    T型三通可使三路正交的管道互相連通即起分流（合流）作用，也可使其中兩條管道連通而切斷另一條管道。

    L型三通只能連通互相正交的兩條管道或切換方向，即起分配作用。

二、 進(jìn)口氣動(dòng)三通球閥分類(lèi)

三通球閥按作用方式分單作用和雙作用兩種方式。單作用的特點(diǎn)是一旦動(dòng)力源發(fā)生故障時(shí)，球閥將處于控制系統(tǒng)要求的狀態(tài)。

三、進(jìn)口氣動(dòng)三通球閥參數(shù)表

進(jìn)口調(diào)節(jié)閥control valve（美國(guó)VTON威盾）是由電動(dòng)執(zhí)行機(jī)構(gòu)或氣動(dòng)執(zhí)行機(jī)構(gòu)、自力式感應(yīng)與閥體兩部分共同組成，根據(jù)調(diào)節(jié)部位信號(hào)，自動(dòng)調(diào)節(jié)閥門(mén)的開(kāi)度，從而達(dá)到介質(zhì)流量、壓力和液位的閥門(mén)。調(diào)節(jié)閥分電動(dòng)調(diào)節(jié)閥、氣動(dòng)調(diào)節(jié)閥和自力式調(diào)節(jié)閥等。

    美國(guó)VTON威盾進(jìn)口調(diào)節(jié)閥包括：

    進(jìn)口電動(dòng)調(diào)節(jié)閥：電子式電動(dòng)調(diào)節(jié)閥，電動(dòng)籠式調(diào)節(jié)閥，電動(dòng)V型調(diào)節(jié)球閥

進(jìn)口氣動(dòng)調(diào)節(jié)閥：氣動(dòng)薄膜調(diào)節(jié)閥，氣動(dòng)籠式單座調(diào)節(jié)閥，氣動(dòng)套筒調(diào)節(jié)閥，進(jìn)口調(diào)節(jié)閥，進(jìn)口自力式調(diào)節(jié)閥：自力式壓力調(diào)節(jié)閥，自力式流量調(diào)節(jié)閥，自力式溫度調(diào)節(jié)閥

口徑：DN1-1000

壓力：PN1.6-80Mpa

適用溫度：-196℃-600℃

適用介質(zhì)：水，蒸汽，油品，各種氣體：空氣，氮?dú)?，氧氣，氫氣，以及腐蝕性介質(zhì)。

應(yīng)用范圍：電力、冶金、化工、輕紡、水處理、熱力等工業(yè)自動(dòng)控制系統(tǒng)中

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