派克比例換向閥#PARKER直動(dòng)式比例換向閥#PARKER先導(dǎo)式比例換向閥

美國(guó)PARKER比例換向閥包括：派克D41FH系列先導(dǎo)式比例換向閥、派克D*6FH系列先導(dǎo)式比例換向閥、派克D*1FW/D*1FT系列先導(dǎo)式比例換向閥、派克D*1FS系列先導(dǎo)式比例換向閥、派克D*FW/D*FT系列直動(dòng)式比例換向閥、派克D*FL系列直動(dòng)式比例換向閥、派克D*FX系列直動(dòng)式比例換向閥、派克D*FH/D1FM系列直動(dòng)式比例換向閥、派克RLL系列直動(dòng)式比例換向閥、派克WL*NG10系列直動(dòng)式比例換向閥、派克WL*NG06系列直動(dòng)式比例換向閥

派克比例閥的工作原理如下：在不制動(dòng)時(shí),活塞在感載彈簧通過(guò)杠桿施加的推力F的作用下,處于左端極限位置,這時(shí)閥門(mén)離開(kāi)閥座打開(kāi),使輸入輸出油路相通。當(dāng)開(kāi)始制動(dòng)時(shí),來(lái)自助力器的壓力為P1的制動(dòng)液由進(jìn)油口進(jìn)入,并通過(guò)閥門(mén)從出油口輸至后制動(dòng)管路.此時(shí)輸出液壓P,等于輸入液壓P1當(dāng)制動(dòng)踏板力增大時(shí),P1和P2同步增大。但由于活塞左側(cè)承壓面積大于右側(cè),致使活塞左側(cè)受到的力也大于右側(cè).
當(dāng)左側(cè)受力大于右側(cè)受力與感載彈簧預(yù)緊力之和時(shí)（此時(shí)的壓力為Ps）,活塞不斷右移,zui后使閥門(mén)與閥座接觸而關(guān)閉,將輸入輸出油路隔絕,達(dá)到平衡狀態(tài)。P1若進(jìn)一步升高時(shí),則活塞左移,閥門(mén)再度打開(kāi),制動(dòng)液流入出油口,使P2也升高。

Parker派克比例換向閥D91F系列是一種帶有集成的電子元件的高動(dòng)態(tài)特性的流量閥和方向閥的集成調(diào)節(jié)閥，由比例電磁鐵控制帶電反饋的直動(dòng)型比例換向閥，可以同時(shí)控制液流的流量及流動(dòng)方向。該閥主級(jí)的閥芯位置可調(diào)，內(nèi)部結(jié)構(gòu)可分滑閥位置反饋、載荷壓力反饋和載荷流量反饋；閥的級(jí)數(shù)可分單級(jí)、雙級(jí)和多級(jí)，適用于閉環(huán)控制回路的精確的和動(dòng)態(tài)的位置調(diào)節(jié)，廣泛應(yīng)用在機(jī)床、輕工、冶金、礦山、航天等行業(yè)液壓系統(tǒng)中。

品牌:Parker 派克
材質(zhì):黃銅
型號(hào):D41FTE01FC4NF00
類(lèi)型（通道位置）:三通式
連接形式:卡套
適用介質(zhì):各種高腐蝕化學(xué)介質(zhì)
流動(dòng)方向:單向
零部件及配件:閥體

派克PARKER先導(dǎo)式比例換向閥
D31FHE01A4NB00
D31FTE01CC1VF00
D31FTB32CC1VF00
D41FTE01FC4NF00
D41FSE02C4NXW035
D41FTB32FC1NF0038
D41FTB32FC1VF00
D41FTE01FC4NF00
D41FTE01FC1NF0038
D41FHB31E1NE00
D41FHB31E1NE00
D41FHB31E1NE00
D41FHB32C1NB00
D41FHB31F2NB00
D41FHB32C2NB00
D41FHB32C4NB00
D41FHE01F1NE0044
D41FHE01C4NE00+5004072（950.00）
D41FSE02C4NXW035
D41FTB32FC1NF0038
D41FTB32FC1VF00
D41FTE01FC1NF0038
D41FWB31FC2NLW0
D41FWB31FC2NLW0
D41FWE01FC4NLW026
D1FCE01FCONMWO
D1FCE02HCONMWO
D1FTE01CCVF00
D1FTB32FCVF00
D1FTE02FCNF0052
D1FVE02BCVXW25
D1FVEV02BCVGOA37
D1FVE50BCVLB35
D1FVE50BCVLB35
D1FVE02BCVFOA37

派克比例閥#PARKER比例換向閥#PARKER伺服閥
PARKER派克比例閥D91FBB32HC2NS00（老型號(hào)D91FTB32HC2NS00）
PARKER派克比例閥D91FBB32HC2NG00（老型號(hào)D91FTB32HC2NG00）
PARKER派克比例閥D91FBB32HC1NG00（老型號(hào)D91FTB32HC1NG00）
PARKER派克比例閥D91FBB32HC1NF00（老型號(hào)D91FTB32HC1NF00）
D91FTB32HC4NG00（升級(jí)為D91FBB32HC4NG00）
D91FTB31HC1NF00（升級(jí)為D91FBB31HC1NF00）
D91FTB31HC2NF00（升級(jí)為D91FBB31HC1NF00）
D91FTB31HC4NF00（升級(jí)為D91FBB31HC1NF00）
D91FTB31HC1NG00（升級(jí)為D91FBB31HC1NG00）
D91FTB31HC2NG00（升級(jí)為D91FBB31HC1NG00）
D91FTB31HC4NG00（升級(jí)為D91FBB31HC1NG00）
D91FTE01HC4NKW0（升級(jí)為D91FBE01HC4NKW0）
D91FTE02HC1NG00（升級(jí)為D91FBE02HC1NG00）
D91FTE02HC1NF00（升級(jí)為D91FBE02HC1NF00）
D91FTE02HC4NG00（升級(jí)為D91FBE02HC4NG00）
D91FTE02HC4NF00（升級(jí)為D91FBE02HC4NF00）
D91FTE01HC4NF00（升級(jí)為D91FBE01HC4NF00）
D91FTE01HC4NG00（升級(jí)為D91FBE01HC4NG00）
D91FTE01HC1NG00（升級(jí)為D91FBE01HC1NG00）
D91FTE01HC1NF00（升級(jí)為D91FBE01HC1NF00）
D91FHB31F1NE00       D91FHB31F2NB00       D91FHB34H4NB00          D91FHB84H5NB00
D91FHB32H1NB00       D91FHB31H2NB00       D91FHE01F1NE00+5004072  D91FHE01H2NB00
D91FHE01H2NE00       D91FHE01H4NB00       D91FHE02H1NB00+5004072  D91FHE02H2NB00
D91FHE02H4NB00       D91FHE01H1NB0048     D91FWB32HC2VLW0         D91FWB32HC4NLW0
D91FBE01EC1NJW0      D91FHE01H1VB00       D91FBB32HC1NF00         D91FBB32HC1NG00
D91FBB32HC1NKW0      D91FBB32HC2NG00      D91FBB32HC4NF00         D91FBB32HC4NG00
D91FBB32HC4NKW0      D91FBB32HC4NS00      D91FBB32HC1NF0010       D91FBB32HC2NG0040
D91FBB32HC2NS00      D91FBB32HC4VG00      D91FHE01F1NE0041        D91FHE01F1NE0044
D91FHE01F1NE0041X760 D91FHE01F1NE0044X760 D91FTE01HC4NF00         D91FTE01HC4NF0040
D91FTE02HC1NF00      D91FTE02HC4NG00      D91FTE02HC4NG0038       D91FTE02HC4NG0042
D91FWB32HC2VLW025    D91FWB32HC4NLW028    D91FBB31HC1VKW0         D91FBB31HC2NKW0
D91FBB31HC2NS00      D91FBB31HC2VKW0      D91FBB31HC4NF00         D91FBE01EC1NKW0
D91FBE01EC1NS00      D91FBE01EC4NF08      D91FBE01EC4NG00         D91FBE01EC4NKW0
D91FBE01HC1NG00      D91FBE01HC1NJW0      D91FBE01HC1NJW8         D91FBE01HC1NKW0
D91FBE01HC1NS00      D91FBE01HC1VF00      D91FBE01HC2NJW0         D91FBE01HC2NKW0
D91FBE01HC2NS00      D91FBE01HC4NG00      D91FBE01HC4NS00         D91FBE01HC4VF00
D91FBE01HC4VS00       D91FBE01HC5NJW0     D91FBE01HK1NJW0         D91FBE01HK1NKW0
D91FBE02EC1NKW0      D91FBE02EC1NS00      D91FBE02EC2NKW0         D91FBE02EC4NKW0
D91FBE02EC5NKW0      D91FBE02HC1NKE0EE    D91FBE02HC1NS00         D91FBE02HC1VKW0
D91FBE02HC2NJW0      D91FBE02HC2NKW8      D91FBE02HC2NS00         D91FBE02HC4NJW0
D91FBE02HC4NW50      D91FBE02HC5NJW0      D91FBE02HC5NKW0         D91FTB31HC1VF00
D91FTB32HC2VF00      D91FTB41FC1NF00      D91FTB41FC4NF00         D91FTB42FC1NF00
D91FTE01HC2NF02      D91FTE01HC5VF00      D91FTE02HC4VF00         D91FTE06HC4NF00
D91FTE21FC4NF00      D91FTE21FC4NG02      D91FTE21FC4VF00         D91FTE22FC1NF00
D91FTE22FC1VF00      D91FTE22FC4NF00      D91FBZ31HC1NM0L         D91FEE01HC2NK70
D91FEZ01HC2NK0L      D91FEZ02HC2NK0L      D91FEZ31HC2NK0L         D91FHA32H2NB00
D91FHB11H4NB00       D91FHB11H5NB00       D91FHB11H5NS00          D91FHB12H1NS00
D91FHB14H1NB00       D91FHB31F1NE00       D91FHB32H1NS00          D91FHB32H2NS00
D91FHB61F2NB00       D91FHB61F2NE00       D91FHE01E1NB00          D91FHE01F4NB00
D91FHE01H1NB20       D91FHE01H2NE00X807   D91FHE01H4NB08          D91FHE01H5NB00
D91FHE02H1NE00       D91FHE02H1NS00       D91FHE02H2NE00X807      D91FHE52F2NE00
D91FHE52H2VE00       D91FPB31HC2NK00      D91FPB31HC4VK00         D91FPB31HC4VK70
D91FPB61HB2NK00      D91FPB61HB4NK00      D91FPB84HC2NK00         D91FPB84HC2NK70
D91FPB92HC2NK00      D91FPE01HC1NK00      D91FPE01HC1NS00         D91FPE01HC2HE50
D91FPE01HC2NB00      D91FPE01HC2NK00      D91FPE01HC2NS70         D91FPE01HC4NK00
D91FPE02HC1NK00      D91FPE02HC1NK70      D91FPE02HC2NK70         D91FPE52HA1NK00
D91FPE52HA2VB00      D91FPE52HA4NK00      D91FPE52HA4VS00         D91FPE52HB2NK70
D91FPE52HB4NK00      D91FPE52HC2NK00      D91FPE52HC2VK70         D91FPR01HC1NB00
D91FPR31HC1NB00      D91FPZ01HC4NK7L      D91FPZ31HC4NK5L         D91FSE01H5VLW0
D91FSE02H5NLW0       D91FBB31HC1NF00      D91FBE01HC4NKW0         D91FBE02HC4NG0010
D91FHE01H1NB0048     D91FHE02H1NB00       D91FTB2111C4NF00        D91FTB32HC1NG00
D91FTB32HC2NG00      D91FTB32HC4VGO       D91FTE01HC1NF0041       D91FTE01HC4NF0038
D91FTE01HC4NF0042    D91FTE01HCINF0041    D91FWB32HC2NLWO         D91FHB31F2NB00
D91FHB31F2NB20       D91FHB31H1VB00       D91FHE21F1NE00          D91FHE21F4NB00
D91FHE21F4NE00       D91FLB41FC1NT00      D91FLB41FC4NW00         D91FLB42FC4NW00
D91FLB42FC4VW00      D91FLE21FC1NT00      D91FLE21FC1NW00         D91FLE21FC2NT00
D91FLE21FC4NT00      D91FLE21FC4NW00      D91FLE21FC4VT00         D91FLE21FC4VW04
D91FLE22FC1NT00      D91FLE22FC4NT00      D91FLE22FC4NW00         D91FLE22FC4VT00
D91FSB32H4NXW0       D91FWE21FC4NLW0      D91FWE22FC1NLW0         D91FWE22FC2NLW2
D91FBB31HC2NF00      D91FBB32HC2NKW0      D91FBB32HC2VKW0         D91FBE01EC1NJW0
D91FBE01EC5NJW0      D91FBE01HC1NF00      D91FBE01HC2NF00         D91FBE01HC2NF08
D91FBE01HC4NF00      D91FBE01HC4NF08      D91FBE01HC4NJW0         D91FBE02EC1NJW0
D91FBE02EC4NJW0      D91FBE02HC1NF00      D91FBE02HC1NJW0         D91FBE02HC1NKW0
D91FBE02HC1NKW8      D91FBE02HC2NF00      D91FBE02HC2NKW0         D91FBE02HC4NF00
D91FBE02HC4NG00      D91FBE02HC4NJE0EE    D91FBE02HC4NKW0         D91FEZ01HC2NK7L
D91FHA31H2NB00       D91FHA31H2NB20       D91FHA82H1NB20          D91FHB11H1NE00
D91FHB11H2NB00       D91FHB12H2NB00       D91FHB12H4NB00          D91FHB31F1NB00
D91FHB31F2NE00       D91FHB31H1NB00       D91FHB31H2NB00          D91FHB31H2NB28
D91FHB31H2NE00       D91FHB31H4VB00       D91FHB32E4NB00          D91FHB32H1NB00
D91FHB32H2NB00       D91FHB32H2NE00       D91FHB32H4NB00          D91FHB32H5NB00
D91FHB34H4NB00       D91FHB61H2NB00       D91FHB61H2NE00          D91FHB63H2NB00
D91FHB84H1NB00       D91FHB84H5NB00       D91FHB87H1NB20          D91FHE01E1NE00
D91FHE01E2NB08       D91FHE01F1NB00       D91FHE01F1NE00          D91FHE01H1NB00
D91FHE01H1NE00       D91FHE01H1VB00       D91FHE01H2NB00          D91FHE01H2NB00X726
D91FHE01H2NB08       D91FHE01H2NE00       D91FHE01H2NE00X726      D91FHE01H2NS00
D91FHE01H2VB00       D91FHE01H4NB00       D91FHE01H5NB08          D91FHE02E1NB00
D91FHE02F1NB08X726   D91FHE02F1NE00       D91FHE02F1NE00XG029     D91FHE02F1VB00
D91FHE02F4NB00       D91FHE02H1NB08       D91FHE02H1NE00XG029     D91FHE02H2NB00
D91FHE02H2NE00       D91FHE02H2NS00       D91FHE02H2VB00          D91FHE02H4NB00
D91FHE02H4VB00       D91FHE06H1NB00       D91FHE52E1NB00          D91FHE52E1VB00
D91FHE52H1NB00       D91FHE52H1NS00       D91FHE52H2NB00          D91FHE52H2NE00
D91FHE52H4NB00       D91FHE52H5NB00       D91FHE85H1NB00          D91FHE85H2NB00
D91FPA61HA2NK70      D91FPB61HB5NK00      D91FPE52HA2NK00         D91FPE52HB2NK00
D91FSA31H2NXW0       D91FSA32H2NLW0       D91FSB11H1NLW0          D91FSB11H2NLW0
D91FSB11H4NXW0       D91FSB12H2NLW0       D91FSB12H4NXW0          D91FSB16H1NLW0
D91FSB31H2NXW0       D91FSB32H1NXW0       D91FSB32H2NLW0          D91FSB32H2NXW0
D91FSE01H1NLW0       D91FSE01H2NLW8       D91FSE01H2NXW0          D91FSE01H2NXW8
D91FSE01H4NLW0       D91FSE01H4NXW0       D91FSE01H5NXW0          D91FSE02H1NLW0
D91FSE02H1NXW0       D91FSE02H2NXW0      D91FSE02H4NLW0
派克比例閥#PARKER比例換向閥#PARKER伺服閥
伺服閥與美國(guó)派克parker比例閥之間的差別并沒(méi)有嚴(yán)格的規(guī)定，因?yàn)楸壤y的性能越來(lái)越好，逐漸向伺服閥靠近，所以近些年出現(xiàn)了比例伺服閥。   比例閥和伺服閥的區(qū)別主要體現(xiàn)在以下幾點(diǎn)：   1.驅(qū)動(dòng)裝置不同。比例閥的驅(qū)動(dòng)裝置是比例電磁鐵；伺服閥的驅(qū)動(dòng)裝置是力馬達(dá)或力矩馬達(dá)；   2.性能參數(shù)不同。滯環(huán)、中位死區(qū)、頻寬、過(guò)濾精度等特性不同，因此應(yīng)用場(chǎng)合不同，伺服閥和伺服比例閥主要應(yīng)用在閉環(huán)控制系統(tǒng)，其它結(jié)構(gòu)的比例閥主要應(yīng)用在開(kāi)環(huán)控系統(tǒng)及閉環(huán)速度控制系統(tǒng)；   2.1 伺服閥中位沒(méi)有死區(qū)，比例閥有中位死區(qū)；   2.2 伺服閥的頻響（響應(yīng)頻率）更高，可以高達(dá)200Hz左右，比例閥一般zui高幾十Hz；   2.3 伺服閥對(duì)液壓油液的要求更高，需要精過(guò)濾才行，否則容易堵塞，比例閥要求低一些；   3.閥芯結(jié)構(gòu)及加工精度不同。比例閥采用閥芯+閥體結(jié)構(gòu)，閥體兼作閥套。伺服閥和伺服比例閥采用閥芯+閥套的結(jié)構(gòu)。   4.中位機(jī)能種類(lèi)不同。比例換向閥具有與普通換向閥相似的中位機(jī)能，而伺服閥中位機(jī)能只有O型（Rexroth產(chǎn)品的E型）。   5.閥的額定壓降不同。   而比例伺服閥性能介于伺服閥和比例閥之間。   比例換向閥屬于比例閥的一種，用來(lái)控制流量和流向。