这些阀门可以常闭,常开或普遍。
These valves can be normally closed, normally open or universal.
控制形式:标准常闭、常开、双作用。
Control type: normally closed, normally open, double acting.
通常分为常开型,常闭型和自保持式三种。
Usually divided into normally open, normally closed and self-holding three.
在该系统中,针形阀i常闭,针形阀常开。
In this system, I often close the needle valve, needle valve is always open.
机械压力开关,1个常闭点常开点,正表压。
Mechanical pressure switch, 1 nc, no, positive gauge pressure.
是不是说所有的接点输入都是常闭的接点输入呢?
报警输出:常开常闭信号,控制排风扇,电磁阀信号。
Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal.
2位2通常闭电磁阀,拥有流量调节功能,适用于液体介质。
2位2通常闭电磁阀,拥有流量调节功能,适用于液体介质。
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