4WRA6V30-22/G24N9K4/V-589液壓比例閥控制油先通過疊加可調節流閥、到達電磁先導閥的P口，通過電磁先導閥的換向及調整節流閥的開度，來實現主閥芯的換向延時，4wreem6e1-32-20/g24k34/b6v R901037662
4wreem6e1-32-20/g24k34/b6v R901037662
R900933073 4WREE 10 E25-2X/G24K31/A1V
R900933074 4WREE 10 W25-2X/G24K31/A1V
R900775379 4WRE 6 W1-32-2X/G24K4/V=LB
R900754133 4WREEM 6 W08J-2X/G24K34/B6V-687
R901240462 STW 0240-1X/4WREA10V75-2X/V-24PF62
R901172961 4WREE 10 E25-2X/G24K31/A1V-655
R900929889 4WREE 6 EA32-2X/G24K31/F1V
R900931195 4WREE 6 V1-16-2X/G24K31/A1V
R901354786 4WREE 10 W1-75-2X/G24K31/F1M
R901354788 4WREE 10 W50-2X/G24K31/F1M
4WREE6E KBFDG4V32C20NZM1PE7H711，5995977-001
4WREE6E162X/G24K31/A1V655 R900950342
R900927230 4WREE10E75-22/G24K31/A1V
R900954101 4WRE10E50-21/G24K4/V
R900933073 4WREE10E25-2X/G24K31/A1V
R900909367 4WREE6V08-22/G24K31/A1V
R900927237 4WREE 10 Q2-50-2X/G24K31/A1V
R900912150 4WREE 6 Q2-16-2X/G24K31/A1V
R901245852 4WREQ 10 Q5-50-2X/V8C-24PA60
R901246417 4WREEM 10 E1-75-2X=G24K34/B6V
R900975521 4WREE 6 E32-2X/G24K31/A1V=LB
R901068955 4WREE 6 V16-2X/G24K31/A1V-826
R900246618 4WREEM 6 E16-2X/G24K34/B6V
R900246793 4WREE 6 W32-2X/G24K31/F1V
R901059709 4WREQ 6 Q5-32-2X/V8C-24CA60
R901060222 4WREE 10 V75-2X/G24K31/A1V-826
R900249502 4WREEM 10 E75J-2X/G24K34/B6V-687
R900709937 4WREE 6 V1-32-2X/G24K31/F1V
R900953729 4WRE 6 W1-08-2X/G24K4/V
R900963483 4WREE 10 WA75-2X/G24K31/F1V
4WREE6V16-2X/G24K31/A1V,R900907440
4WREE6W32-24/G24K31/A1V
R901319559 4WREQ 6 Q5-16-2X/V5C-24PF60
R901320026 4WREF 6 W32-2X/V-24PA1
R900954094 4WRE 6 E1-32-2X/G24K4/V
R900954095 4WRE 6 W1-16-2X/G24K4/V
R900954117 4WRE 10 V75-2X/G24K4/V
R900911004 4WREE 6 W32-2X/G24K31/A1V
從而達到降低主油路與執行元件接通時的換向沖擊。但先導電磁閥斷電時、彈簧復位型電液換向閥主閥體兩端蓋內的液壓油會通過先導電磁閥的中位與泄油口接通、主閥芯在復位彈簧的作用下會立即復位，由于主閥芯復位快、亦即切斷執行元件油路的速度快、從而引起液壓沖擊6038615 PBT-RB010SG1SSNAMA0Z
4WE6D7X/HG24N9K4
4WE6D62/EG24N9K4
4WE6D62/EG24N9K4
4WE 6 T62/EG12N9K4/V
4WE 6 T62/EG12N9K4/V
AA2FM160/61W-VSD181-S
AA2FM160/61W-VSD181-S
PGF2-22/006RJ01VU2
PGF2-22/006RJ01VU2
4WE6D62/EG24N9K4
4WE6D62/EG24N9K4
PGF2-22/006RJ01VU2
PGF2-22/006RJ01VU2
AA2FM160/61W-VSD181-S
AA2FM160/61W-VSD181-S
4WE 6 T62/EG12N9K4/V
4WE 6 T62/EG12N9K4/V
V20 1P8P 1C11
V20 1P8P 1C11
。由此可見，疊加一個P口可調節流閥，只能實現換向接通延時、不能解決復位切斷延時。注：象油缸類的執行元件，油缸前進與后退時通過換向閥的流量是不一致的，油缸無桿腔與有桿腔的面積比越大、流量差距也越大，此時若想較滿意的降低執行元件前進與后退時的液壓沖擊，通過一個可調節流閥，恐怕是難以實現的。DBETR-1X/80G24K4M
DBETR-1X/80G24K4M
DBETR-1X/80G24K4M-575
DBETR-1X/80G24K4M-575
DBETR-1X/80G24K4M-676
DBETR-1X/80G24K4M-676
DBETR-1X/80G24K4M-676
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DBETRE-2X/80G24K31A1M
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DBETRE-2X/80G24K31A1M
DRC2-5X/100Y SO151
DRC30-1-5X/315Y SO151
DRC30-5-5X/100Y
DRC30-5-5X/50Y
DRC4-5X/315Y
DRC5-5X/100Y SO173
DRC6-5X/100Y SO173
DRC6-5X/200Y SO177
DZC2-5X/100
DZC2-5X/200
DZC2-5X/315 SO77
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