氣動薄(báo)膜切(qiē)斷閥(fá)是(shì)采用頂導向(xiàng)結(jié)構，配用(yòng)多彈(dàn)簧薄膜執(zhí)行機 構。閥(fá)體(tǐ)結構形(xíng)式有(yǒu)單座(zuò)、套筒(tǒng)、三(sān)通等三(sān)種結(jié)構。具有結(jié)構(gòu)緊 湊、重量輕(qīng)、動作靈敏、流體(tǐ)通道(dào)呈s流線型(xíng)、壓降(jiàng)損失小、閥(fá) 容量大、拆裝方(fāng)便等(děng)優點。該閥(fá)接收來自調(diào)節(jiē)儀表(biǎo)的信(xìn)号，切(qiē)斷、 開啟(qǐ)或改變介質(zhì)流向，達到(dào)對壓力、流量、溫(wēn)度或液位等工(gōng)藝參 數(shù)自(zì)動控(kòng)制。廣泛應(yīng)用于(yú)環保水(shuǐ)處理、石油(yóu)、化(huà)工、冶金、電(diàn)力、 輕工、紡織等(děng)各種(zhǒng)工業部門(mén)的生(shēng)産過(guò)程自(zì)動控制和(hé)遠程(chéng)控(kòng)制(zhì)系統 中。 

the pneumatic diaphragm cut-off valve is subject to a top guide structure with multi spring diaphragm actuator.there are three types of valve body structure：single seat， sleeve and three-way.it has the advantages of compact structure， lightweight， sensi tv e action， s streamlined fluid passage， small pressure drop loss， large valve capacity， convenient disassembly and assembly， etc.the valve receives the signal from the regulating instrument， cuts off， opens or changes the flow direction of the fluid to achieve the automatic control of the process parameters such as pressure， flow， temperature or liquid level.it is widely used in the automatic control and remotecontrol system of production process of environmental protection water treatment， petroleum， chemical industry， metallurgy， electric power， light industry， textile and other industrial sectors.