阿托斯比例減壓閥AGMZO-TERS-10/210/I 屬高壓閥系列，適用于冶金、石油、液壓、水壓試驗機組上。主要用途：是采用節(jié)流耗能達到降壓的功能，能使高壓、超高壓設備和高壓管道內(nèi)的高壓水通過此閥將高壓水降至低壓所需壓力后排出，使高壓系統(tǒng)壓力均勻降低。由油缸、閥體兩部分組成。而節(jié)流孔板和高壓調(diào)節(jié)閥設計為一體，閥門開關排泄流量和降壓由液壓缸行程控制。能任意調(diào)整排泄壓力及流量，安全，方便。導閥的開啟都是利用頂部的調(diào)節(jié)螺栓順時針方向擰動，使彈簧縮產(chǎn)生的彈力，使導閥膜片向下凹陷，作用在導閥連桿上的力，使之向下位移打開導閥。當導閥開啟后，上游進汽管段A腔的蒸汽通過α通道（供汽調(diào)節(jié)通道），經(jīng)過導閥進入導閥環(huán)形汽腔，由β通道直接送到下面的活塞汽缸上腔。在A腔蒸汽不斷的供給下，壓力持續(xù)升高，推動活塞下行打開主閥，這時蒸汽源源不斷從A腔流至B腔。當下游出口管段B腔負荷滿足的情況下，余多的蒸汽又使B腔內(nèi)的壓力不斷升高。不斷升高的壓力通過γ通道（壓力感應通道）反饋到導閥膜片下腔，使導閥膜片向上突起，克服了上部調(diào)節(jié)彈簧的壓力，導閥被關小或關閉。從而，關小或關閉來自上游α通道的蒸汽源。當活塞汽缸上腔壓力下降時，在下面復位彈簧的作用下，主閥被關小或關閉，這時B腔內(nèi)的壓力開始下降，這樣周而復始達到調(diào)壓的目的AGMZO-A-10/100
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