1、控制方式不同 (1)常開電磁閥是一款電磁閥，其特點為線圈通電時電磁閥關(guān)閉，線圈斷電后電磁閥開啟，管路中的電磁閥長期開啟，偶爾關(guān)閉的時候應該 常開電磁閥與常閉電磁閥要怎么區(qū)別呢？
1. Different control methods (1) The normally open solenoid valve is a solenoid valve, which is characterized by closing the solenoid valve when the coil is powered on, opening the solenoid valve after the coil is powered off, and opening the solenoid valve in the pipeline for a long time. How can the normally open solenoid valve and the normally closed solenoid valve be distinguished when the solenoid valve is occasionally closed?
1、控制方式不同
1. Different control methods
(1)常開電磁閥是一款電磁閥，其特點為線圈通電時電磁閥關(guān)閉，線圈斷電后電磁閥開啟，管路中的電磁閥長期開啟，偶爾關(guān)閉的時候應該選用常開型。控制方式：常開;標準電壓：AC(380、240、22。0、24)V、DC(110、24)。
(1) The normally open solenoid valve is a solenoid valve. Its characteristics are that the solenoid valve is closed when the coil is powered on, the solenoid valve is opened after the coil is powered off, the solenoid valve in the pipeline is opened for a long time, and the normally open type should be selected when it is occasionally closed. Control mode: normally open; International standard voltage: AC (380, 240, 22. 0, 24) V, DC (110, 24).
(2)常閉式電磁閥適用于以蒸汽為熱介質(zhì)，進行溫度自動控制的執(zhí)行機構(gòu)。可對蒸汽加熱器、散熱器、干燥器等蒸氣設備及各類溫度自控儀、蒸汽定型機、蒸汽機、蒸汽回潮機等成套設備的鍋爐蒸汽管道進行二位式自動控制和遠程控制。
(2) The normally closed solenoid valve is applicable to the actuator with steam as the thermal medium for automatic temperature control. Two-position automatic control and remote control can be carried out for steam equipment such as steam heaters, radiators, dryers, and boiler steam pipes of various temperature automatic control instruments, steam setting machines, steam engines, steam humidifiers, and other complete sets of equipment.
2、使用方式不同
2. Different ways of use
常開型電磁閥指線圈斷電時，電磁閥打開;線圈通電時，電磁閥關(guān)閉，常閉型電磁閥指線圈斷電時，電磁閥關(guān)閉;線圈通電時，電磁閥打開
Normally open solenoid valve refers to the solenoid valve opening when the coil is powered off; When the coil is powered on, the solenoid valve is closed. Normally closed solenoid valve means that when the coil is powered off, the solenoid valve is closed; When the coil is energized, the solenoid valve opens
3、使用范圍不同
3. Different scope of use
(1)當電磁閥需要長時間關(guān)閉時，并且關(guān)閉的時間多于開啟的時間。而且持續(xù)開啟的時間并不是很久時，可以選擇常閉型。需要長時間開啟的同時又要長時間關(guān)閉時，要選自保持式電磁閥，也就是常開常閉型電磁閥。
(1) When the solenoid valve needs to be closed for a long time, and the closing time is longer than the opening time. If the continuous opening time is not long, the normally closed type can be selected. When it needs to be opened for a long time and closed for a long time, it should be selected from the holding solenoid valve, that is, the normally open and normally closed solenoid valve.
(2)當電磁閥需要長時間開啟時，并且開啟的時間多于關(guān)閉的時間，而且持續(xù)開啟的時間并不是很久時，可以選擇常開型。或用于燃氣警報系統(tǒng)，要選用常開型的燃氣緊急切斷電磁閥，帶手動開啟。
(2) When the solenoid valve needs to be opened for a long time, and the opening time is longer than the closing time, and the continuous opening time is not long, the normally open type can be selected. Or for gas alarm system, normally open gas emergency cut-off solenoid valve with manual opening shall be selected.
(3)有些需要應用于保護的工況，如爐、窯火監(jiān)測,則不能選常開的，應選用可以長期通電型的。
(3) For some working conditions that need to be applied to safety protection, such as furnace and kiln fire monitoring, the normally open type cannot be selected, and the type that can be energized for a long time should be selected.
安裝注意
Installation notes
1、安裝時應注意閥體上箭頭應與介質(zhì)流向一致。不可裝在有直接滴水或濺水的地方。電磁閥應垂直向上安裝
1. During installation, the arrow on the valve body should be consistent with the flow direction of the medium. Do not install it in the place where there is direct dripping or splashing. The solenoid valve shall be installed vertically upwards
2、電磁閥應保證在電源電壓為額定電壓的15%-10%波動范圍內(nèi)正常工作
2. The solenoid valve shall be able to work normally within the fluctuation range of 15% - 10% of the rated voltage
3、電磁閥安裝后，管道中不得有反向壓差。并需通電數(shù)次，使之適溫后方可正式投入使用
3. After the solenoid valve is installed, there shall be no reverse pressure difference in the pipeline. It needs to be powered on several times to make it warm before it can be put into use
4、電磁閥安裝前應徹底清洗管道。通入的介質(zhì)應無雜質(zhì)。閥前裝過濾器
4. Thoroughly clean the pipeline before installing the solenoid valve. The medium shall be free of impurities. Filter installed in front of valve
5、當電磁閥發(fā)生故障或清洗時，為保證系統(tǒng)繼續(xù)運行，應安裝旁路裝置。
5. When the solenoid valve fails or is cleaned, a bypass device shall be installed to ensure the continuous operation of the system.
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