burkert 00134158 宝德134158 burkert电磁阀是用来控制流体的自动化基础元件，属于执行器；并不限于液压，气动。burkert电磁阀用于控制液压流动方向，工厂的机械装置一般都由液压钢控制，所以就会用到burkert电磁阀。
burkert 00134158 宝德134158burkert电磁阀分类：
1、直动式burkert电磁阀：通电时，电磁线圈产生电磁力把关闭件从阀座上提起，阀门打开；断电时，电磁力消失，弹簧把关闭件压在阀座上，阀门关闭。
2、分步直动式burkert电磁阀：一种直动和先导式相结合的原理，当入口与出口没有压差时，通电后，电磁力直接把先导小阀和主阀关闭件依次向上提起，阀门打开。当入口与出口达到启动压差时，通电后，电磁力先导小阀，主阀下腔压力上升，上腔压力下降，从而利用压差把主阀向上推开；断电时，先导阀利用弹簧力或介质压力推动关闭件，向下移动，使阀门关闭。
3、先导式burkert电磁阀：通电时，电磁力把先导孔打开，上腔室压力迅速下降，在关闭件周围形成上低下高的压差，流体压力推动关闭件向上移动，阀门打开；断电时，弹簧力把先导孔关闭，入口压力通过旁通孔迅速腔室在关阀件周围形成下低上高的压差，流体压力推动关闭件向下移动，关闭阀门
burkert 00134158 宝德134158
Burkert electromagnetic valve classification:
1. Direct acting burkert solenoid valve: when energized, the electromagnetic coil generates electromagnetic force to lift off the closing part from the seat and the valve opens; When the power is off, the electromagnetic force disappears and the spring closes the closing piece on the seat and the valve closes.
2, fractional straight acting burkert solenoid valve: a combination of direct acting and pilot operated principle, when the inlet and outlet no pressure difference, after electrify, electromagnetic force directly combine small pilot valve and main valve closed in lift, the valve opens. When the inlet and outlet reach the starting pressure difference, when the power is energized, the electromagnetism first pilot small valve, the pressure of the lower cavity of the main valve increases, the upper chamber pressure drops, so that the main valve is pushed up by the pressure difference; When the power is off, the pilot valve USES the spring force or medium pressure to push the closure, moving down and closing the valve.
3, pilot operated burkert solenoid valve: electricity, electromagnetic force open the pilot hole, the chamber pressure drops rapidly, in closed form around the high low differential pressure, fluid pressure push close up, the valve open; Power off, the spring force to close the guide hole, inlet pressure chamber through the by pass hole quickly in closing valve using a form around the high differential pressure, fluid pressure push close move down, close the valve
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