DR20-5-5X/200YM
武穴黎翔机电设备有限公司,询价联系人:何女士
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询价QQ: ,调速阀FG-02-1500-T-50现货Z2FS10-5-3X/V现货2FRM10-3X/50LB 现货ALP2-S-40现货DG4V-3-2B-M-U-H7-60现货296140现货
主要由控制充液压力上下限的先导阀和充液主阀构成,图中的P、O、A、T分别为油泵压力油进油口、通往下游液压系统的出口、通往蓄能器出口及回油口。
DG18V-3-2AL-B-60
VT-VSPA1-1-1X
VT3002-1-2X/32D
PAVC10038R4222
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R910921007 AEAA10VS0100DR/31R-PPA12N00
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充液阀的充液过程为:当蓄能器的压力低于充液阀设定的下限压力时,作用在上限单向阀阀芯3上的液压力低于先导阀4左端弹簧8的作用力,使下限单向阀6关闭,上限单向阀3打开,蓄能器内的压力油经先导阀芯4、节流通道Ⅱ进入主阀右腔,推动主阀芯9克服左腔压力向左移动,逐渐降低主阀开度,P与O口间的节流作用造成P口压力增高。随后P口与A口间的单向阀打开,经节流口向蓄能器供液。当蓄能器压力达到上限时,作用在先导阀右端单向阀阀芯3的液压力大于左端弹簧压力,下限单向阀6打开,上限单向阀3关闭,主阀右腔经先导阀于T口相通泄压,在左端压力作用下克服右端弹簧压力右移,P口与A口间的单向阀关闭,恢复全流量向下游系统供液,充液过程结束。
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