??Z2FS22-8-3X/S2

武穴黎翔機(jī)電設(shè)備有限公司，詢價聯(lián)系人：何女士

詢價電話：0713-6542758，手機(jī)：18934630908????

詢價傳真：0713-6542758

詢價QQ:?736567721,704552157

現(xiàn)貨特價型號：R900925687?4WRAE10W1-30-22/G24N9K31/F1V??2臺

0811402141?DBETBEX-1X/315G24K31F1M?????2臺

D634-371C?R24K02MONSS2????3臺

DG4V-3-6C-M-U-H7-60????10臺

截止式閥的閥心沿著閥座的軸向移動，控制進(jìn)氣和排氣。圖4.2所示為二通截止式閥的基本結(jié)構(gòu)。圖4.2a中，在閥的P口輸入工作氣壓后，閥芯在彈簧和氣體壓力作用下緊壓在閥座上，壓縮空氣不能從A口流出；圖4.2b為閥桿受到向下的作用力后，閥芯向下移動，脫離閥座，壓縮空氣就能從P口流向A口輸出。這就是截止式閥的切換原理。

下離開閥座，壓縮空氣從P口流向A口輸出。圖4.3b為工作狀態(tài)，閥桿在向上的力作用下，閥心緊壓在閥座上關(guān)閉閥口，流道被關(guān)斷，A口沒有壓縮空氣流出。

圖4.4所示為三通截止式閥的結(jié)構(gòu)，閥有P、A、0三個孔口。圖4.4a為閥的初始狀態(tài)，閥心緊壓在上閥座上，P口和A口通路被關(guān)斷，A口和0口相通。

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R988001714?PLUG?FDIR?CONTRL?VALVE

R900031155?PLUG?SOCKET?Z24-4POLIG

R900021267?PLUG-7P

R900223890?PLUG-7P?BF63PG11M

R900929542?PVV4-1X/122RA15DMC

R900755931?PVV54-1X/193-122RA15DDMC

R900420531?S10A1.0/

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R900420525?S20A1.0/

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R900599456?SV30PA2-4X/

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R900979887?VT-VRPA2-1-1X/V0/T1

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R900214081?VT-VSPA2-50-1X/T1

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R900411318?Z2DB6VC2-4X/315V

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閥的輸出A口沒有輸出。

圖4.4b為工作狀態(tài)。閥桿受力后使閥心離開上閥座而緊壓在下閥座上，關(guān)閉排氣O口，打開P口至A口之間的通道，壓縮空氣從P口流向A口輸出。圖4.4c所示為閥在切換過程中閥心所處的瞬態(tài)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

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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

此時，P、A、0三個孔口同時相通，而發(fā)生串氣現(xiàn)象。實(shí)際上，對于快速切換的閥，這種串氣現(xiàn)象對閥的動作不存在什么影響。但緩慢切換時，應(yīng)予以注意。

截止式閥的結(jié)構(gòu)決定了其開啟所需的時間較短，但開啟大口徑的閥則需較大的開啟力。因此截止式閥多用于小口徑的閥。需要大流量或高壓時，往往采取先導(dǎo)式的結(jié)構(gòu)。其方法是增加一個控制活塞，先導(dǎo)控制氣壓作用在活塞上產(chǎn)生的較大操縱力，以彌補(bǔ)上述缺點(diǎn)。

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PVV5-1X/193RA15DMB??PVV5-1X/193RA15DMB?

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PVV42-1X/098-045RA15DDMC???PVV21-1X/068-027RA15LUMB

PVV51-1X/162-036RB15DDMC???PVV51-1X/193-027RA15DDMC

PVV52-1X/193-040RB15URMC???PVV52-1X/193-055RB15UUMC

PVV54-1X/183-082RA15DDMC???PVV54-1X/139-082RA15UUMC

PVV52-1X/139-068RA15DLMC???PVV5-1X/193RA15LMC

PVV54-1X/139-069RA15UUMC???PVV2-1X/068RJ15UMB

PVV4-1X/113RJ15UMC?????????PVV1-1X/027LA15LMB

PVV42-1X/082-045RA15DDMC???PVV1-1X/027RJ15DVB

PVV54-1X/162-082RB15UUMC???PVV41-1X/082-018RA15RRVC

PVV41-1X/082-046RA15UUMC???PVV51-1X/139-027RA15DLMC

PVV52-1X/139-068RA15DLMC???PVV21-1X/040-018RB15UDMB

PVV5-1X/154RJ15DVC?????????PVV21-1X/055-018RA15UUVB

PVV5-1X/193RA15LMC?????????PVV4-1X/122RA15RMC

PVV54-1X/154-113RJ15UUMC???PVV21-1X/045-027RJ15UUMB

PVV21-1X/068-027RA15URMB???PVV51-1X/154-027RA15RRVC

PVV54-1X/193-122RA15UUVC???PVV54-1X/193-113RA15UUVC

PVV1-1X/046RA15DVB?????????PVV41-1X/082-036RA15LLMC

PVV2-1X/060RA15LMB?????????PVV54-1X/193-082RA15DDMC

PVV52-1X/154-055RA15UUMC???PVV42-1X/082-068RA15UUMC

PVV54-1X/183-122RB15DDMC???PVV54-1X/139-098RB15DDMC

PVV52-1X/162-055RB15DDMC???PVV52-1X/154-068RB15DDMC?????????