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ROSS閥DM2? D系列介紹

DM2? D 系列雙閥是一款獲得專(zhuān)利的 3/2 常閉閥（帶中間鎖定位置），其特點(diǎn)是主閥桿上帶有 SERPAR? 橫流通道、錐閥和滑閥。這種布置賦予了閥門(mén)流量特性和集成監(jiān)控功能，并帶有總記憶功能。該閥門(mén)提供動(dòng)態(tài)監(jiān)控和動(dòng)態(tài)記憶功能。

動(dòng)態(tài)監(jiān)控意味著所有監(jiān)控組件在每個(gè)閥門(mén)循環(huán)中都會(huì)改變狀態(tài)。如果閥芯異步循環(huán)，閥門(mén)將排出下游空氣并鎖定，從而禁止進(jìn)一步操作。

監(jiān)控系統(tǒng)中的動(dòng)態(tài)記憶功能表明，當(dāng)閥門(mén)鎖定時(shí)，無(wú)論空氣或電氣狀態(tài)如何變化，閥門(mén)都將保留故障信息。DM2? 系統(tǒng)只能通過(guò)定義的操作/程序復(fù)位，并且不會(huì)自行復(fù)位（關(guān)閉和打開(kāi)閥門(mén)），也不會(huì)在切斷并重新通入進(jìn)氣時(shí)復(fù)位。這種自動(dòng)復(fù)位會(huì)向操作員隱藏潛在危險(xiǎn)。

The DM2? Series D double valve is a patented 3/2 normally closed valve (with an intermediate, lockout position)  distinguished by SERPAR? Crossflow passages with poppet and spool valving on the main  valve stems. This arrangement provides  the  valve’s outstanding flow characteristics and an integrated monitoring capability with total memory.  The valve provides dynamic monitoring and dynamic memory.

Dynamic Monitoring means that all monitoring components change state on every valve cycle.  Should the valve elements cycle asynchronously, the valve will exhaust downstream air and lock-out, prohibiting further operation. 

Dynamic Memorywithina monitoring system indicates that when a valve lock-out occurs, the valve will retain the fault information regardless of air or electrical changes. The DM2? system can only be reset by a defined operation/procedure, and will not self-reset (turning the valve off and on) or reset when inlet air supply is removed and re-applied. Such automatic resetting would conceal potential hazards from the operator.