美國NUMATICS電磁閥運轉中的問題及解決方案有哪些
美國NUMATICS電磁閥通常只有開關兩種狀態，閥芯只能處于兩個極限位置，不能連續調節，(力圖突破的新構思不少，但還都處于試驗試用階段)所以調節精度還受到定限制。電磁閥對介質潔凈度有較高要求，含顆粒狀的介質不能適用，如屬雜質須濾去。另外，粘稠狀介質不能適用，而且，特定的產品適用的介質粘度范圍相對較窄。
1、美國NUMATICS電磁閥線圈燒壞，可拆下美國NUMATICS電磁閥的接線，用萬用表測量，如果開路，則電磁閥線圈燒壞。原因有線圈受潮，引起緣不好而漏磁，造成 線圈內電流過大而燒毀。 　　 　　對策：因此要防止雨水進入電磁閥。此外，彈簧過硬，反作用力過大，線圈 匝數太少，吸力不夠也可使得線圈燒毀。緊急處理時，可將線圈上的手動按鈕由正常工作時的“0"位打到“1"位，使得閥打開。 　　 　　2、美國NUMATICS電磁閥接線頭松動或線頭脫落，美國NUMATICS電磁閥不得電，對策：可緊固線頭。 　　 　　3、美國NUMATICS電磁閥卡住。安徽賽科環保科技供應的電磁閥的滑閥套與閥芯的配合間隙很小（小于0.008mm），般都是單件裝配，當有機械雜質帶入 或潤滑油太少時，很容易卡住。 　　 　　對策：可用鋼絲從頭部小孔捅入，使其彈回。根本的解決方法是要將電磁閥拆下，取出閥芯及閥芯套，用CCI4清洗，使得閥芯在閥套內動作 靈活。拆卸時應注意各部件的裝配順序及外部接線位置，以便重新裝配及接線正確，還要檢查油霧器噴油孔是否堵塞，潤滑油是否足夠。 　　 　　4、漏氣。漏氣會造成空氣壓力不足，使得閥的啟閉困難，原因是密封墊片損壞或滑閥磨損而造成幾個空腔竄氣。 　　 　　對策：在處理切換系統的電磁閥故障時，應選擇適當的時機，等該電磁閥處于失電時進行處理，若在個切換間隙內處理不完，可將切換系 統暫停，處理完畢
以下是參考譯文
1, solenoid valve coil burned out, can remove the solenoid valve wiring, measured with a multimeter, if open, the solenoid valve coil burned. Moisture causes the coil, magnetic flux leakage caused by bad insulation, causing the coil current is too large to burn. Countermeasures: so to prevent flood water from entering the solenoid valve. In addition, excellent spring, reaction force is too large, too few coil turns, the suction can not make the coil burnt. Emergency treatment, can be "0" bit hit "1" bit manual button on the coil from the normal work, makes the valve open. 2, solenoid valve head loose or thread off wiring, electric solenoid valve shall be fastened thread:, countermeasures. 3, solenoid valve stuck. Slide valve sleeve and spool valve clearance Anhui SECCO environmental protection science and technology supply is very small (less than 0.008mm), are generally single assembly, when a mechanical impurities into or too little lubricant, it is easy to get stuck. Countermeasures: can hold into the wire hole from the head to make it bounce. The fundamental solution is to remove the valve, remove the spool and spool cover, clean with CCI4, making flexible movement in the valve spool sleeve. Demolition should pay attention to the assembly sequence and location of the external connection of each component, in order to re assembly and wiring is correct, also check whether the plug hole injector lubricator, lubricating oil is sufficient. 4, leakage. Lack of air pressure can cause leakage, making enforcement difficult to open and close the valve, the reason is the slide valve gasket damage or wear caused by several cavity channeling gas. Countermeasures: in dealing with the electromagnetic valve failure switching system, should select the appropriate time, such as the solenoid valve is energized when dealing with, if not processed in a gap switch, switching system can be suspended, disposed of.