4WRPEH6C3B12L-2X/G24KO/F1M武穴黎翔机电设备有限公司，询价联系人：何女士询价电话：0713-6542758，18934630908询价传真：0713-6542758询价***:736567721,704552157截止式阀的阀心沿着阀座的轴向移动，控制进气和排气。图4.2所示为二通截止式阀的基本结构。图4.2a中，在阀的P口输入工作气压后，阀芯在弹簧和气体压力作用下紧压在阀座上，压缩空气不能从A口流出；图4.2b为阀杆受到向下的作用力后，阀芯向下移动，脱离阀座，压缩空气就能从P口流向A口输出。这就是截止式阀的切换原理。3DREP6C-1X/25A12NK4M3DREP6C-1X/25A24JM3DREP6C-1X/25A24K4M3DREP6C-1X/25A24K4V3DREP6C-1X/25A24N2K10M-5453DREP6C-1X/25A24N9K4M3DREP6C-1X/25A24N9K4M-663DREP6C-1X/25A24N9K4V3DREP6C-1X/25A24NJM3DREP6C-1X/25A24NK4M3DREP6C-1X/25A24NK4M-203DREP6C-1X/25A24NK4M-663DREP6C-1X/25A24NK4V3DREP6C-1X/45A24N9K4M3DREP6C-1X/45A24N9K4V3DREP6C-1X/45A24NK4M3DREP6C-1X=25A24NK4M=LB3DREP6C-1X=25A24NZ4M-20=PL3DREP6C-2X/16EG24K4/M3DREP6C-2X/16EG24N9K4/M3DREP6C-2X/25EG24K4/M3DREP6C-2X/25EG24N9K4/M3DREP6C-2X/25EG24N9K4/V3DREP6C-2X/45EG24K4/M3DREP6C-2X/45EG24N9K4/M下离开阀座，压缩空气从P口流向A口输出。图4.3b为工作状态，阀杆在向上的力作用下，阀心紧压在阀座上关闭阀口，流道被关断，A口没有压缩空气流出。图4.4所示为三通截止式阀的结构，阀有P、A、0三个孔口。图4.4a为阀的初始状态，阀心紧压在上阀座上，P口和A口通路被关断，A口和0口相通。阀的输出A口没有输出。图4.4b为工作状态。阀杆受力后使阀心离开上阀座而紧压在下阀座上，关闭排气O口，打开P口至A口之间的通道，压缩空气从P口流向A口输出。图4.4c所示为阀在切换过程中阀心所处的瞬态位置。此时，P、A、0三个孔口同时相通，而发生串气现象。实际上，对于快速切换的阀，这种串气现象对阀的动作不存在什么影响。但缓慢切换时，应予以注意。截止式阀的结构决定了其开启所需的时间较短，但开启大口径的阀则需较大的开启力。因此截止式阀多用于小口径的阀。需要大流量或高压时，往往采取先导式的结构。其方法是增加一个控制活塞，先导控制气压作用在活塞上产生的较大操纵力，以弥补上述缺点。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