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仙童FAIRCHILD换能器TACI6000-301型广东办
面议仙童FAIRCHILD换能器TA6000-905型*
面议美国生产仙童FAIRCHILD换能器T9000系列
面议仙童FAIRCHILD换能器T5220系列美国原厂生产
面议仙童FAIRCHILD调节器10202H型现货供应
面议仙童FAIRCHILD调节器208102型*
面议仙童FAIRCHILD电动调节器10224J型*
面议仙童电动压力调节器10262BPJ美国工厂生产
面议进口FAIRCHILD电动控制器T9000系列美国生产
面议FAIRCHILD仙童电动传感器月底*
面议美国FAIRCHILD传感器现货分销处供货
面议全新现货美国FAIRCHILD传感器TA6000-016
面议东莞艾科工业自动化设备有限公司专业进口美国FAIRCHILD减压阀,调节器,控制阀,传感器,等产品,我司在美国,德国设有自己的公司,直接厂家订货,一手货源,价格美丽,货期短,质量有保证,我司从06年成立以来,拥有良好的市场信誉,*的技术及服务团队,欢迎您询价采购
美国厂价直销FAIRCHILD减压阀的出口压力是用来控制电液换向阀或外控顺序阀等的控制油液压力大小的,当电液换向阀或外控顺序阀换向或工作后,减压阀出油口流量变为零,但压力还需保持原先调定的压力。这种情况下,因阀出口流量为零,流经减压口的流量只有先导流量。由于先导流量很少,一般在2L/min之内,因此主阀减压口基本上接近全关位置(开度极小),先导流量由三角槽或斜锥面处流出,如果主阀芯配合过松或磨损过大,则泄漏量增加。按流量连续性定理,这部分泄漏量也必须从主阀芯阻尼孔流来,即流经阻尼孔的流量由先导流量和泄漏量两部分构成,而阻尼孔面积和主阀弹簧腔油液压力未变(弹簧腔油液压力由已调好的调压弹簧预压缩量确定),为使通过阻尼孔的流量增加,必然引起主阀下腔油液压力的升高。因此,当减压阀出口压力调定后,如果出口流量为零时,出口压力会因主阀芯配合过松或磨损过大而升高。
美国厂价直销FAIRCHILD减压阀飞兆4000A型号是一款无泄漏高流量精密压力调节器,专为要求高性能,低功耗和精确过程控制的应用而设计。4000A型气动调节器具有小于0.5“水柱的控制灵敏度,zui小消耗量和高流量能力,可提供始终如一且可靠的精度精度,从而无论供应压力变化或条件如何,都能保持所需的设定点。可处理250 psi,17 BAR的zui大供应压力,并提供0.5-10 psi,0.03-0.7 BAR,3-70 kPa至5-250 psi,0.35-17 BAR,35-1700 kPa的五(5) 。4000A型的流量可达150 SCFM,255 m3 / hr。
按结构形式可分为薄膜式、弹簧薄膜式、活塞式、杠杆式和波纹管式;按阀座数目可人为单座式和双座式;按阀瓣的位置不同可分为正作用式和反作用式。先导式减压阀当减压阀的输出压力较高或通径较大时,用调压弹簧直接调压,则弹簧刚度必然过大,流量变化时,输出压力波动较大,阀的结构尺寸也将增大。为了克服这些缺点,可采用先导式减压阀。先导式减压阀的工作原理与直动式的基本相同。先导式减压阀所用的调压气体,是由小型的直动式减压阀供给的。若把小型直动式减压阀装在阀体内部,则称为内部先导式减压阀;若将小型直动式减压阀装在主阀体外部,则称为外部先导式减压阀
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