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代理现货SMC内置压力表的减压阀ARG系列,SMC气动SMC内置压力表的减压阀是利用电磁铁推动阀芯来控制液流方向的。采用电磁换向阀可以使操作轻便，容易实现自动化操作，因此应用广。电磁换向阀只是采用电磁铁来操纵滑阀阀芯运动，而阀芯的结构及型式可以是各种各样的，所以电磁滑阀可以是二位二通、二位三通、二位四通、三位四通和三位五通等多种型式。一般二位阀用一个电磁铁，三位阀需用两个电磁铁。操纵电磁阀用的电磁铁分为交、直流两种，交流电磁铁的电压一般为220伏。其特点是启动力较大，换向时间短，价廉。但当阀芯卡住或吸力不够而使铁芯吸不上时，电磁铁容易因电流过大而烧坏，故工作可靠性较差，动作时有冲击，寿命较低。直流电磁铁电压一般为24伏。其优点是工作可靠，不会因阀芯卡住而烧坏，寿命长，体积小，但启动力较交流电磁铁小，而且在无直流电源时，需整流设备。
若进口压力有波动，譬如压力瞬时升高，则出口压力也随之升高。作用在膜片上的推力增大，膜片上移，向上压缩弹簧，从膜片组件中间的溢流孔有瞬时溢流。并靠复位弹簧及气压力作用，使阀杆上移，阀门开度减小，节流作用增大，使出口压力回降，直至达到新的平衡为止。重新平衡后的出口压力又基本上恢复至原值。
如进口压力不变，输出流量变化，使出口压力发生波动（增高或降低）时，依靠溢流孔的溢流作用和膜片上力的平衡作用推动阀杆，仍能起稳压作用。当输出流量为零时，出口气压力通过反馈管进入膜片下腔，推动膜片上移，复位弹簧力推动阀杆上移，阀芯关闭，保持出口气压力一定。当输出流量很大时，高速流使反馈管处静压下降，即膜片下腔压力下降，阀门开度加大，仍能保持膜片上的力平衡。
代理现货SMC内置压力表的减压阀ARG系列,SMC气动
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代理现货SMC内置压力表的减压阀ARG系列,SMC气动