德国原装贺德克压力阀
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贺德克/-V-L24 压力变送器一般意义上的压力变送器主要由测压元件传感器（也称作压力传感器）、测量电路和过程连接件三部分组成。它能将测压元件传感器感受到的气体、液体等物理压力参数转变成标准的电信号（如4~20mADC等）， 以供给指示报警仪、记录仪、调节器等二次仪表进行测量、指示和过程调节
作用：
压力变送器把压力信号传到电子设备，进而在计算机显示压力。
其原理大致是：
将水压这种压力的力学信号 转变成 电流（4-20mA） 这样的电子信号
压力和电压或电流 大小成线性关系，一般是正比关系
所以，变送器输出的电压或电流 随压力增大而增大
由此得出一个压力和电压或电流的关系式
压力变送器的被测介质的两种压力通入高、低两压力室，低压室压力采用大气压或真空，作用在δ元（即敏感元件）的两侧隔离膜片上，通过 菲格瑞思隔离片和元件内的填充液传送到测量膜片两侧。压力变送器是由测量膜片与两侧绝缘片上的电极各组成一个电容器。当两侧压力不一致时，致使测量膜片产生位移，其位移量和压力差成正比，故两侧电容量就不等，通过振荡和解调环节，转换成与压力成正比的信号
/-L24 压力变送器
/-L24 压力变送器
/-V-L24 压力变送器

贺德克二位电磁阀WS10W-01-C-N-24DG原装现货
工作原理
电磁阀里有密闭的腔，在不同位置开有通孔，每个孔连接不同的油管，腔中间是活塞，两面是两块电磁铁，哪面的磁铁线圈通电阀体就会被吸引到哪边，通过控制阀体的移动来开启或关闭不同的排油孔，而进油孔是常开的，液压油就会进入不同的排油管，然后通过油的压力来推动油缸的活塞，活塞又带动活塞杆，活塞杆带动机械装置。这样通过控制电磁铁的电流通断就控制了机械运动WS06Y-01-C-N-0
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贺德克液控单向阀/0 液控单向阀是依靠控制流体压力，可以使单向阀反向流通的阀。这种阀在煤矿机械的液压支护设备中占有较重要的地位。液控单向阀与普通单向阀不同之处是多了一个控制油路K，当控制油路未接通压力油液时，液控单向阀就象普通单向阀一样工作，压力油只从进油口流向出油口，不能反向流动。当控制油路有控制压力输入时，活塞顶杆在压力油作用下向右移动，用顶杆顶开单向阀，使进出油口接通。若出油口大于进油口就能使油液反向流动480221;DB4E-01X-200M200;68
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