德國進口burkert 5281先導型伺服控制電磁閥
帶有伺服隔膜的 5281EEx 型先導式閥，根據其防爆級別的不同，可被應用于易爆環境中，用于閉塞、計量及灌注氣態和液態介質。這樣的壓力需要先到壓力0.2KG，黃銅外殼。burkert產品大致分為六大類：“通用電磁閥系統”“過程控制閥系統”“氣動控制閥系統”“液體分析閥系統”“傳感器/變送器”和 “控制器”，很多產品達到衛生級標準。
德國進口burkert 5281先導型伺服控制電磁閥
in the process, there will be dead area the process variable deviates from the original set point. So the output of the controller must increase to enough to overcome dead zone, only the corrective action occurs.the main factors influencing dead area. The friction, the moving, valve shaft torsional, amplifier, dead zone. Of various control valve on the friction sensitivity is not the same, such as plug valves for the friction caused by the high seat load is very sensitive, so take note when using. But for some seal type, high seat load is necessary in order to obtain close ranks.
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