4WRPEH6C3B02L-2X/G24K0/A1M-816

武穴黎翔機(jī)電設(shè)備有限公司，詢價(jià)：何琴

詢價(jià)：，    

詢價(jià)

詢價(jià): 736567721,704552157 D3W034CNJW
D3W034CNTW42
D3W1KNTW30
派克PARKER液壓比例閥D31系列
D31FBE01CC1NF00
D31FHE01A4NB0042
D31FHE01C4NB0040
D31FHE02C1NB00
D31FTE01CC4NF00
派克PARKER先導(dǎo)式比例換向閥D41系列
D41FBB00FC4NKW0X840
D41FBE02FC4NF00
D41FHB31E1NE0041
D41FHE01C4NB00
D41FTB32FC1NF0037
D41FTE01FC4NF00
D41FTE01FC4NF0040
D41VW004C4VJW91
派克PARKER比例閥D91系列
D91FHE01F1NE0041 substitutefor D91FHE01F1NE0044
D91FHE01F1NE0041X760 CPT  substitutefor D91FHE01F1NE0044X760
D91FTE01HC4NF0040
D91FTE02HC1NF00
D91FTE02HC4NG0042
D91FWB32HC2VLW025
派克PARKER柱塞泵PV140、PV016、PV063、PV270、PV046系列
PV016R1K1T1NMMC
PV040R1K8T1NMMC
PV046R1K1T1WMMC
PV063R1K1T1NFWS
PV140R1K1TINFR1
PV270R1K1T1NFWS
PVS25EH140
PVS40EH140C2
PVS40EH140C2RD
派克PARKER液控單向閥CPOM
CPOM3DDV50
派克PARKER其它
5004072
104440876379，8-379 ; 11.028
104440876379，8-379 ; 11.028
3319111387  PGP505A0060CA1H2NE5E3B1B1
3703516   F11-019-MB-CN-K-000
4DC1GOQN2
4DB1G0Q Nr:026-54182-H
4D01-3208-0302-C1G0Q
4DB1W51
4D02-3208-0302-B1G0Q
701-00611-8
9PCK400S-0.50 GPM
BD15AAABN10
CVH161P
D111FHE01L4NB0040
D1FHE50MCNBJ00
D1FVE02BCVF0A
D1FVE02BCVF0A37
D1FVE02BCVFOA38
D1FVE02BCVLW25
D1FVE50BCVLB35
D1VA001CV
D3DW034CNJW
D3FWE81MCNKW020
DSDA1002P07K
DWLC522P20B
EVSA064A101
EVSA315A101Z
FM2DDSV55
FM3DDDSV
FM3DDSV51
FM4DDFVHT
HP-010-2-S1220-12-1
N3556904549
PARKER D1VW020BNJEE91
PARKER D1VW020BVJEE91
PCDOOA -400-18
PD100PS02SRS5AC10S300
PD140PS02SRS5AC00S100
PRDM2PP21SVG
PS100-POHD-DB
R1E023121A1045
R25R25S4SN
R4R0659311B1P1G0Q
R4V03-533-10-11-G0QA1
R4V03-533-10-A1
RDM2PT35KVG

REXROTH比例換向閥DBETBEX-1X/180G24K31F1M

 
比例閥 閥對(duì)流量的控制可以分為兩種：
一種是開(kāi)關(guān)控制：要么全開(kāi)、要么全關(guān)，流量要么zui大、要么zui小，沒(méi)有中

間狀態(tài)，如普通的電磁直通閥、電磁換向閥、電液換向閥。
另一種是連續(xù)控制：閥口可以根據(jù)需要打開(kāi)任意一個(gè)開(kāi)度，由此控制通過(guò)流

量的大小，這類閥有手動(dòng)控制的，如節(jié)流閥，也有電控的，如比例閥、伺服

閥。
所以使用比例閥或伺服閥的目的就是：以電控方式實(shí)現(xiàn)對(duì)流量的節(jié)流控制（

當(dāng)然經(jīng)過(guò)結(jié)構(gòu)上的改動(dòng)也可實(shí)現(xiàn)壓力控制等），既然是節(jié)流控制，就必然有

能量損失，伺服閥和其它閥不同的是，它的能量損失更大一些，因?yàn)樗枰?/p>

一定的流量來(lái)維持前置級(jí)控制油路的工作。

換向閥是具有兩種以上流動(dòng)形式和兩個(gè)以上油口的方向控制閥。是實(shí)現(xiàn)液壓

油流的溝通、切斷和換向，以及壓力卸載和順序動(dòng)作控制的閥門(mén)。
可分為手動(dòng)換向閥、電磁換向閥、電液換向閥等。
又稱克里斯閥，閥門(mén)的一種，具有多向可調(diào)的通道，可適時(shí)改變流體流向。
工作時(shí)借著閥外的驅(qū)動(dòng)傳動(dòng)機(jī)構(gòu)轉(zhuǎn)動(dòng)驅(qū)動(dòng)軸，帶動(dòng)搖拐臂，啟動(dòng)閥板，使工

作流體時(shí)而從左入口通向閥的下部出口，時(shí)而從右入口變換通向下部出口，

實(shí)現(xiàn)了周期變換流向的目的。
這種變換閥在石油、化工生產(chǎn)中有著廣泛的應(yīng)用，在合成氨造氣系統(tǒng)中zui為

常用。此外，換向閥還可作成閥瓣式的結(jié)構(gòu)，多用于較小流量的場(chǎng)合。工作

時(shí)只需轉(zhuǎn)動(dòng)手輪通過(guò)閥瓣來(lái)變換工作流體的流向。

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