QUTO磁性開關(guān)D-M9B M9N M9P 3CD-A93 D-Z73L C73 A73 DF8N D-M9BV

先導(dǎo)式減壓閥結(jié)構(gòu)與工作原理

一般在液壓系統(tǒng) 中，往往一個(gè)液壓油泵需要同時(shí)向幾個(gè)執(zhí)行元件供油，而各執(zhí)行元件所需的工作壓力不盡相同。著某個(gè)執(zhí)行元件所需的工作壓力較液壓泵的供油壓力（即系統(tǒng)壓力）低時(shí)，可在該分支油路中串聯(lián)一減壓閥，所需壓力大小可用減壓閥來調(diào)節(jié)。

減壓閥是一種利用液流流過隙縫産生壓降的原理，使出口壓力低于進(jìn)口壓力的壓力控制閥。根據(jù)調(diào)節(jié)性能的不同，減壓閥又可分爲(wèi)定值減壓閥、定比減壓閥和定差減壓閥三種。其中定值減壓閥應(yīng)用廣，它可以保持出口壓力爲(wèi)定值，使液壓系統(tǒng)中某一支路的壓力低于系統(tǒng)壓力且保持壓力穩(wěn)定。

減壓閥也分直動式和先導(dǎo)式兩種，直動式減壓閥在系統(tǒng)中較少單獨(dú)使用，先導(dǎo)式減壓閥則應(yīng)用較多，直動式減壓閥與先導(dǎo)式減壓閥特點(diǎn)的比較可以參考下表：

下圖爲(wèi)先導(dǎo)式減壓閥的結(jié)構(gòu)。它由先導(dǎo)閥和主閥兩部分組成。先導(dǎo)閥閥芯5在調(diào)壓彈簧4的作用下，緊壓在先導(dǎo)閥閥座6上，調(diào)節(jié)螺母1可改變彈簧4對先導(dǎo)閥作用的預(yù)緊其作用是克服摩擦力、將主閥芯壓向最左端。減壓閥的作用有兩個(gè)：一是將較高的入口壓力（通常稱爲(wèi)一次壓力）p1減低爲(wèi)較低的出口壓力（通常稱爲(wèi)二次壓力）p2；二是保持p2的穩(wěn)定。簡單地說，就是減壓和穩(wěn)壓的作用。

QUTO感磁傳感器AN-01系列有：AN-01R,AN-01RD,AN-01N,AN-01P;
QUTO感磁傳感器AN-02系列有：AN-02R, AN-02RD, AN-02N,AN-02P;
QUTO感磁傳感器AN-03系列有：AN-03R,AN-03RD, AN-03N,AN-03P;
QUTO感磁傳感器AN-04系列有：AN-04R,AN-04RD, AN-04N,AN-04P;
QUTO感磁傳感器AN-05系列有：AN-05R,AN-05RD, AN-05N,AN-05P;
QUTO感磁傳感器AN-06系列有：AN-06R,AN-06RD,AN-06N,AN-06P;
QUTO感磁傳感器AN-07系列有：AN-07R,AN-07RD,AN-07N,AN-07P;
QUTO感磁傳感器AN-08系列有：AN-08R,AN-08RD,AN-08N,AN-08P;
QUTO感磁傳感器AN-09系列有：AN-09R,AN-09RD,AN-09N,AN-09P;
QUTO感磁傳感器AN-10系列有：AN-10R,AN-10RD,AN-10N,AN-10P;
QUTO磁性開關(guān) AN-11系列有：AN-11R,AN-11RD,AN-11N,AN-11P;
QUTO磁性開關(guān) AN-12系列有：AN-12R,AN-12RD,AN-12N,AN-12P;
QUTO磁性開關(guān) AN-13系列有：AN-13R,AN-13RD,AN-13N,AN-13P;
QUTO磁性開關(guān) AN-14系列有：AN-14R,AN-04RD,AN-14N,AN-14P;
QUTO磁性開關(guān) AN-15系列有：AN-15R,AN-15RD,AN-15N,AN-15P;
QUTO磁性開關(guān) AN-16系列有：AN-16R,AN-16RD,AN-16N,AN-16P;
QUTO磁性開關(guān) AN-17系列有：AN-17R,AN-17RD,AN-17N,AN-17P;
QUTO磁性開關(guān) AN-18系列有：AN-18R,AN-18RD,AN-18N,AN-18P;
QUTO磁性開關(guān) AN-19系列有：AN-19R,AN-19RD,AN-19N,AN-19P;
QUTO磁性開關(guān) AN-20系列有：AN-20R,AN-20RD,AN-20N,AN-20P;
QUTO感應(yīng)器    AN-21系列有：AN-21R,AN-21RD,AN-21N,AN-21P;
QUTO感應(yīng)器    AN-22系列有：AN-22R,AN-22RD,AN-22N,AN-22P;
QUTO感應(yīng)器    AN-23系列有：AN-23R,AN-23RD,AN-23N,AN-23P;
AN-24R,AN-24RD,AN-24N,AN-24P;
AN-25R,AN-25RD,AN-25N,AN-25P;AN-26R,AN-26RD,AN-26N,AN-26P;
AN-27R,AN-27RD,AN-27N,AN-27P;AN-28R,AN-28RD,AN-28N,AN-28P;
AN-29R,AN-29RD,AN-29N,AN-29P;AN-30R,AN-30RD,AN-30N,AN-30P;
AN-31R,AN-31RD,AN-31N,AN-31P;AN-32R,AN-32RD,AN-32N,AN-32P;
AN-33R,AN-33RD,AN-33N,AN-33P;AN-34R,AN-34RD,AN-34N,AN-34P;
AN-35R,AN-35RD,AN-35N,AN-35P;AN-36R,AN-36RD,AN-36N,AN-36P;
AN-37R,AN-37RD,AN-37N,AN-37P;AN-38R,AN-38RD,AN-38N,AN-38P;
AN-39R,AN-39RD,AN-39N,AN-39P;AN-40R,AN-40RV,AN-40RD,AN-40N,AN-40P;
AN-41R,AN-41RV,AN-41RD,AN-41N,AN-41P;AN-42R,AN-42RV,AN-42RD,AN-42N,AN-42P;
AN-43R,AN-43RV,AN-43RD,AN-43N,AN-43P;AN-44R,AN-44RV,AN-44RD,AN-44N,AN-44P;
AN-50R,AN-50RV,AN-50RD,AN-50N,AN-50P;AN-51R,AN-51RV,AN-51RD,AN-51N,AN-51P;
AN-70R,AN-70RV,AN-70RD,AN-70N,AN-70P;AN-71R,AN-71RV,AN-71RD,AN-71N,AN-71P;
AN-72R,AN-72RD,AN-72RD,AN-72N,AN-72P
D-A93-Z73-A73-C73-M9B-M9BL-M9N-M9NL-M9PL A93L
D-A93 D-A93L
D-M9B D-M9B(L) D-M9N D-M9NL D-M9P D-M9PL
D-Z73 D-Z73L
D-F8BL D-F8NL
D-C73L
D-A73
D-M9BV D-M9NV D-M9PV D-M9NW D-M9BW
D-F8PL
D-R731L D-R732L
D-A96 D-A96V
D-Y59A D-Y59B D-Y7P
D-Z76 D-Z80
D-A53 D-A54 D-A56
D-M9PW
D-Y69B D-Y69A D-Y7PV
ZSE30A-01-N-L
D-A90 D-A93 D-A96 D-A90V D-A93V D-A96V
D-M9PW D-M9PM D-M9PWL D-M9PZ D-M9P D-M9PL D-M9N D-M9B
D-M9BL-M9NL-M9PL-M9BV-M9NV-M9PV-D-A93L-Z73L
D-M9B D-M9N D-M9P D-M9BA D-M9BZ D-M9B短款 D-M9NV D-M9PV D-M9BV
D-F8B D-F8N D-F8P
D-M9PSAPC D-M9BW D-M9NW D-M9PW