Z2FS22-8-3X/S2

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，手机：18934630908    

询价传真：0713-6542758

询价QQ: 736567721,704552157

现货特价型号：R900925687 4WRAE10W1-30-22/G24N9K31/F1V  2台

0811402141 DBETBEX-1X/315G24K31F1M     2台

D634-371C R24K02MONSS2    3台

DG4V-3-6C-M-U-H7-60    10台

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。

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。

R900779509 PLUG 04POL E11509

R988001714 PLUG FDIR CONTRL VALVE

R900031155 PLUG SOCKET Z24-4POLIG

R900021267 PLUG-7P

R900223890 PLUG-7P BF63PG11M

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R900422886 S8A1.0/

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R900419510 SL10PA4-4X/

R900599473 SL30PA2-4X/

R900590409 SL6PB2-6X/

R900483369 SV10PA1-4X/

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R900407394 Z2S10-1-3X/

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R900432915 Z2S22-1-5X/

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R900347495 Z2S6-1-6X/

R900347495 Z2S6-1-6X/

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R900347501 Z2S6B1-6X/

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R900514779 Z4S10-3X/

R900425901 Z4S16-2X/

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R900522027 ZDB6VA1-4X/315V

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R900551788 ZDB6VB1-4X/315V

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R900409898 ZDB6VP2-4X/315V

R900409898 ZDB6VP2-4X/315V

R900410880 ZDR10DP2-5X/150YM

R900410876 ZDR10DP2-5X/210Y

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。

PVV54-1X/162-122RA15UUMC

PVV54-1X/162-122RB15DDMC

PVV54-1X/183-069RA15DDMC

PVV54-1X/183-069RA15UUMC

PVV54-1X/183-082RA15DDMC

PVV54-1X/183-082RA15UUMC

PVV54-1X/183-082RB15DDMC

PVV54-1X/183-082RJ15DDMC

PVV54-1X/183-082RJ15UUMC

PVV54-1X/183-098RB15DUMC

PVV54-1X/183-098RB15LLMC

PVV54-1X/183-113RA15UUMC

PVV54-1X/183-113RB15DDMC

PVV54-1X/183-113RJ15DDMC

PVV54-1X/183-113RJ15UUMC

PVV54-1X/183-122RA15DDMC

PVV54-1X/183-122RA15UUMC

PVV54-1X/183-122RB15DDMC

PVV54-1X/183-122RJ15DDVC

PVV54-1X/193-069RJ15UUMC

PVV54-1X/193-082LA15UUVC

PVV54-1X/193-082RA15DDMC

PVV54-1X/193-082RA15UUMC

PVV54-1X/193-082RB15DDMC

PVV54-1X/193-082RB15UDMC

PVV54-1X/193-082RJ15UUMC

PVV54-1X/193-098RA15DDMC

PVV54-1X/193-098RA15LLMC

PVV54-1X/193-098RA15UUMC

PVV54-1X/193-098RB15DDMC

PVV54-1X/193-098RJ15DDMC

PVV54-1X/193-113RA15LLMC

PVV54-1X/193-113RA15UUMC

PVV54-1X/193-113RA15UUVC

PVV54-1X/193-113RB15DDMC

PVV54-1X/193-113RB15RRMC

PVV54-1X/193-113RJ15UUMC

PVV54-1X/193-122LA15DUMC

PVV54-1X/193-122LB15UUMC

PVV54-1X/193-122RA15DDMC

PVV54-1X/193-122RA15DUMC

PVV54-1X/193-122RA15RRMC

PVV54-1X/193-122RA15UUMC

PVV54-1X/193-122RA15UUVC

PVV54-1X/193-122RB15DDMC

PVV54-1X/193-122RB15DDVC

PVV54-1X/193-122RB15RRMC

PVV54-1X/193-122RB15UUMC

PVV54-1X/193-122RB15UUVC

PVV54-1X/193-122RJ15DDMC

PVV54-1X/193-122RJ15UUMC

PVV54-1X/193-122RR15DDMC

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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