New type electric control big gatevalve is introduced, which USES JZ - 7 locomotive brake and it is controlled by microprocessor and stepping motor.
介绍了新型电控大闸采用JZ - 7机车制动机，通过微处理器和步进电机实现控制。
2
When in work, the control system automatically opens or closes the gate of the electric flashboard valve according to the signals sent by the material level meters.
工作时，控制系统根据料位仪传来的信号自动开启或关闭电动闸板阀闸口。
3
CCD electric ultra-high vacuum gatevalve USES electric device to drive the stem, moving valve disc up and down to make the valve opened or closed.