力士乐溢流阀ZDB6VB2-4X/315V；浅析先导式溢流阀与直动型溢流阀的区别
溢流阀可分为直动型和先导式两类。直动型溢流阀是作用在阀芯上的主油路液压力与调压弹簧力直接相平衡的溢流阀。根据阀口和测压面结构形式不同，形成三种基本结构。
先导式溢流阀：主阀弹簧主要用于克服阀芯的摩擦力，弹簧刚度小。当溢流量变化引起主阀弹簧压缩量变化时，弹簧力变化较小，因此阀进口压力变化也较小。调压精度高，广泛应用于高压、大流量系统。
溢流阀的阀芯在移动过程中要受到摩擦力的作用，阀口开大和关小时的摩擦力方向刚好相反，使溢流阀开启时的特性与关闭时的特性产生差异。

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流量阀的作用是在阀的进出口压差变化的情况下，利用调节阀芯和阀体间的节流口面积和它所产生的局部阻力对流量进行调节，从而控制执行元件的运动速度。维持通过的流量恒定，从而维持与之串联的被控对象(如一个环路、一个用户、一台设备等，下同)的流量恒定。管网中应用流量阀，可直接根据设计来设定流量，阀门可在水压作用下，自动消除管线的剩余压头及压力波动所引起的流量偏差。流量阀的名称较多，如自力式流量平衡阀、定流量阀、动态平衡阀等。各种类型的流量阀，结构各有不同，但工作原理相似。

力士乐溢流阀ZDB6VB2-4X/315V

R900433346 DR 6 DP2-5X/75YM/12
R900433350 ZDR 6 DP2-4X/210YM/12
R900433356 DZ 6 DP2-5X/75YM/12
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R900433442 DZ 6 DP2-5X/75X
R900433461 G 174/01J
R900433497 HED 1 OA4X/350KL220
R900433541 ZDR 6 DP2-4X/150YMJ
R900433564 DZ 6 DP2-5X/40XYM W2
R900433646 ZDB 6 VA1-4X/200V
R900433701 FMH 15 G23-1X/O
R900433703 HED 1 OA4X/50KL24
R900433771 DB 10 DP2-1X/315
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R900433819 DR 6 DP2-5X/210YM SO43
R900433851 ZDR 10 DA1-5X/210Y
R900433926 HED 1 OA4X/100KL220
R900433929 DBDS 25 G1X/25
R900434028 Z2S 10A2-3X/
R900434033 ZDR 10 VP5-3X/200YM SO30
R900434034 Z2DB 10 VD2-4X/200 SO30
R900434116 LC 16 DB00D2X/-018
R900434128 DBDH 6 P1X/400
R900434142 ZDR 10 VP5-3X/315YMV
R900434143 ZDR 10 VP5-3X/200YMV
R900434144 DR10K5-3X/315YMV
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R900434232 DZ 6 DP2-5X/150YMV
R900434256 2FRM 10-3X/16QB
R900434290 F 10 K3-2X/50L
R900434395 Z2FS 6-3-4X/2Q
R900434461 Z2S 6A2-6X/SO60
R900434477 DR 6 DP2-5X/210YM/12
R900434488 DZ 6 DP1-5X/210
R900434550 ZDB 10 VT2-4X/50 SO30
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R900434781 Z2S 10B3-3X/SO40
R900434782 Z2S 6B3-6X/SO60
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R900434798 Z2S 10-1-3X/V SO30
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R900434800 Z2S 10B1-3X/SO30
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R900434836 4TH 7 A05-1X/M01-008
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R900434979 F 10 P1-3X/10L SO203
R900434980 S 15 A1.0/SO 68
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R900435663 G 409/01
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R900436165 2FRM 5-3X/1,2Q SO237
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R900436618 G 431/01
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R900436691 4WMM 6 G73-5X/
R900436800 Z2S 10B3-3X/
R900436801 Z2S 10-2-3X/V
R900436812 Z2S 10A2-3X/V
R900436868 MG 52 P1-1X/
R900436900 G 67/01FE/ZN
R900437010 Z2S 10A3-3X/
R900437011 ZDR 10 VA5-3X/50YV
R900437021 ZDR 10 VA5-3X/100YV
R900437023 ZDR 10 VP5-3X/100YMV
R900437053 DBDS 25 G1X/50V
R900437119 DR 6 DP7-5X/75YM
R900437123 ZDR 6 DA7-4X/210Y
R900437204 HED 1 OA4X/100KL24
R900437207 DBDA 10 P1X/200V
R900437261 M-SR 6 KD50-1X/
R900437272 Z2DB 10 VC1-4X/200V
R900437273 ZDB 6 VP2-4X/315JV
R900437275 Z2S 10A2-3X/SO40
R900437316 DBF 82-2-3X/315XYU
R900437338 MG 6 G1X/V
R900437348 DBDS 6 G1X/200V
R900437349 DBDS 10 G1X/400V
R900437352 HED 1 KA4X/350KL220
R900437373 DR 6 DP2-5X/210YV
R900437430 ZDC 32 P-2X/V
R900437441 ZDB 6 VA2-4X/100
R900437448 Z2DB 6 VC3-4X/200V
R900437449 Z2DB 6 VD3-4X/200V
R900437452 DZ 6 DP2-5X/150XYM
R900437454 SL 52 PA2-1X/V
R900437466 DBDH 10 K1X/200V
R900437605 HSA 06 A001-3X/V00
R900437645 ZDR 10 VP6-3X/200YM
R900437650 DBDS 15 G1X/100V

力士乐溢流阀ZDB6VB2-4X/315V

溢流阀是一种液压压力控制阀，在液压设备中主要起定压溢流作用，稳压，系统卸荷和安全保护作用。
定压溢流作用：在定量泵节流调节系统中，定量泵提供的是恒定流量。当系统压力增大时，会使流量需求减小。此时溢流阀开启，使多余流量溢回油箱，保证溢流阀进口压力，即泵出口压力恒定（阀口常随压力波动开启）。

力士乐溢流阀ZDB6VB2-4X/315V

R900335117 DBDA 10 K1X/630V
R900335194 4WMD 6 GB5X/F
R900335294 E-S 16 K1-3X/
R900335325 Z1S 10 P1-3X/V SO68
R900335417 LEITUNGSDOSE 7P C01530F0060011 &
R900335588 RS 415-1X/315/1,2/1,2
R900335628 IH15EA-1X/GDH-S350/DNHED8G24V
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R900335764 Z2DB 22 VD2-2X/315
R900335821 IH02B 06 -100-1X/01
R900335823 IH02B 06 -102-1X/00
R900335825 IH02B 10 -104-1X/00
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R900335834 IH15EA-1X/F06DB-S500/10/EV
R900335844 UPE2-1X/2,2 R2,55/5AN-B1V
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R900336026 UPE2-1X/1,1 R1,25/3A-1V
R900336077 DBD. 30 G1X/ ... /12
R900336080 HED 1 OA4X/350KL24
R900336334 DZ 5 DP2-1X/150XM
R900336342 DBETR-1X/180G24K4V
R900336398 DBDS 6 G1X/100J
R900336411 SPULE GZ37-32 24VDC 22W +L=1000MM
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R900336893 DICHTUNGSSATZ LFA40EDREW.-7X/C
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R900337019 DB 15 G2-4X/200X W65
R900337055 DBEC-3X/200YG24K4-262
R900337309 ROHR 70,0X 8,8 -ST52.4N DIN2448/1630
R900337604 S 10 A3.0//2
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R900337618 LC 63 B40E2X/-008
R900337635 RUECKSCHLAGVENTIL D13-1,5BAR/ Z2S10SO73
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R900337796 W-S 32 G2-3X/
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R900338105 SCHELLE D222,0 HRGKS2B222/126,0ST*
R900338119 PLATTE BCW/S
R900338199 4WH 6 GB5X/
R900338220 4WMM 6 W5X//B08
R900338231 DB 20 K2-1X/315YV
R900338345 DRUCKVENTIL VMA1.050.0V.500 -160
R900338446 FDR 5 DP1-1X/75YJ
R900338459 G 115/12
R900338478 DRV 20 -1-1X/V/12
R900338480 DRV 30 -1-1X/V/12
R900338582 ZDR 6 DP2-4X/75YM W13
R900338701 MH1DBN 16 G2-1X/420M13
R900339043 G 410/12
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R900339308 MHDBV 16 K2-1X/420MFB
R900339376 G 535/02
R900339423 4WMM 6 C5X/F/B08
R900339523 Z1S 10 P1-3X/V SO30
R900339598 G 415/12
R900339599 G 546/12
R900339705 DBDS 10 K1X/315 SO60
R900339737 G 536/12
R900339841 DZ 5 DP2-1X/210YM SO21
R900339892 3FRM 10-2X/10LX
R900339922 DBDS 30 G1X/315J
R900340002 Z2FS 22-3X/S2 SO2
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R900340147 S 25 A3.0//12
R900340150 G 535/12
R900340202 SPULE GZ45-1 24V+L=300MM
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R900340362 ZDC 25 P-2X/V
R900340460 S 15 A1.0/SO14
R900340488 DBDS 10 G1X/315V/12
R900340679 DR 20 K4-1X/315YMV
R900340691 RS 415-1X/315/0,8/1,2/Y
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R900340757 ZDC 10 PT-2X/XM
R900340804 WEGESITZVENTIL-VOR OD.15.05.17.62.04.OC
R900340829 MITNEHMER GF3-3X/ -A396 GEBOHRT
R900340883 MITNEHMER GF3-3X/ -A396 UNGEBOHRT
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R900341073 ZDC 16 PT-2X/XM
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R900346082 M-SR 15 KE30-1X/
R900346083 M-SR 8 KE05-1X/
R900346230 DR 20-5-4X/200YV
R900346244 DBD. 10 G1X/ ... /12
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R900346391 M-SR 25 KE30-1X/
R900346478 PR4-1X/0,40-700WA01V01
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R900346638 M-SR 20 KE30-1X/
R900346639 LF 25 DB1H-2X/315
R900346704 Z2S 22 A1-5X/V
R900346799 LC 16 DB30D6X/
R900346806 4WRE 6 E32-1X/24K4/M
R900346857 M-SR 10 KE15-1X/
R900346858 M-SR 15 KE15-1X/
R900346859 M-SR 20 KE15-1X/
R900346936 M-SR 10 KE30-1X/
R900346965 3FRM 16-2X/60LD SO204
R900346974 DZ 5 DP2-1X/400XYM SO20
R900346976 L-DB 150 F2-3X/16
R900347093 DBDS 6 G1X/50/12
R900347259 DBD. 15 G1X/ ... /12
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R900347461 4WMD 6 D5X/F/B08
R900347495 Z2S 6-1-6X/
R900347496 Z2S 6-2-6X/
R900347497 Z2S 6-3-6X/
R900347498 Z2S 6A1-6X/
R900347499 Z2S 6A2-6X/
R900347500 Z2S 6A3-6X/
R900347501 Z2S 6B1-6X/
R900347502 Z2S 6B2-6X/
R900347503 Z2S 6B3-6X/
R900347504 Z2S 6-1-6X/V
R900347505 Z2S 6-2-6X/V
R900347506 Z2S 6-3-6X/V
R900347507 Z2S 6A1-6X/V
R900347508 Z2S 6A2-6X/V
R900347509 Z2S 6A3-6X/V
R900347510 Z2S 6B1-6X/V
R900347511 Z2S 6B2-6X/V
R900347512 Z2S 6B3-6X/V
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R900347727 4WMM 6 D5X/F SO329
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R900347868 DBDH 6 K1X/315J
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R900348076 W-DBDS 30 K1X/315
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R900348329 M-SR 8 KE30-1X/
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R900348353 ZDC 25 PT-2X/M
R900348453 M-SR 25 KE15-1X/
R900348479 G 45/12
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R900348666 M-SR 30 KE15-1X/
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R900348999 DZ 5 DP3-1X/75Y
R900349254 PR4-1X/2,00-175WG01M01
R900349389 DZ 5 DP2-1X/315YMV SO22
R900349563 4WH 6 RB5X/
R900349863 ERSATZTEIL SM 12 L10/R1-DECKEL /19092300
R900349889 DR 20 G5-4X/100YM/12
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R900350110 MH2DBV 16 G2-1X/100M
R900350244 DBDS 30 K1X/200J
R900350282 DZ 5 DP1-1X/210YM SO21
R900350312 MHB 40 FNFB1X/D00ST12V11
R900350325 DBDS 15 G1X/25/12
R900350448 LC 125 B30E2X/
R900350639 DRV 25 -1-1X/V
R900350784 DZ 5 DP2-1X/150YM SO21
R900350794 M-SR 15 KE05-1X/V
R900350795 M-SR 20 KE05-1X/V
R900350796 M-SR 30 KE50-1X/V
R900350797 M-SR 30 KE05-1X/V
R900350815 2FVR 16 PD1X/8Q3,5Q
R900350936 M-SR 20 KE00-1X/
R900351112 DBDH 6 K1X/315 SO52
R900351330 MK 25 G1X/V/12
R900351338 4WH 6 D5X/OF SO88
R900351415 G 468/12
R900351428 W-DBDS 10 K1X/100
R900351441 W-DBDS 20 K1X/315
R900351541 DB 15 G2-4X/50Y W65
R900351613 H-4WH 22 J7X/
R900351634 MH3WA 06 CG1X/006M01
R900351693 4WMM 6 E36-5X/SO73
R900351736 4WMM 6 X7-5X/F SO73
R900351943 M-SR 25 KE50-1X/
R900351976 4WH22Q7X/
R900351992 MS 6 A2X/
R900352039 ZDC 32 P-2X/XM
R900352081 ERSATZTEIL SM 12 L10/N-GRIFF /19092100
R900352087 4WMM 6 J5X//B10
R900352091 L-DB 50 F2-3X/16Y
R900352113 DBDS 30 G1X/200/12
R900352206 G 470/12
R900352237 LC 25 DB20E6X/
R900352424 DBETR-1X/350G24K4M
R900352462 DB 20 K3-1X/100Y
R900352465 LC 16 A20E6X/
R900352608 M-SR 30 KE00-1X/
R900352672 DBDS 6 G1X/315/12
R900352720 4WMM 6 E5X/SO329
R900352747 4WH 6 Y5X//V
R900352847 PR4-1X/1,00-450WG01M01
R900352977 DRV 12 -1-1X/V/12
R900352978 DBGT-1X/315VE1
R900353020 4WMDA 6 J5X/F/B10
R900353046 DB 52 P2-3X/100U
R900353047 DB 52 P2-3X/315U
R900353049 DB 52 F2-3X/100U
R900353051 DB 52 F2-3X/315XYU
R900353053 DB 52 F2-3X/100YU
R900353054 DB 52 P2-3X/315XU
R900353113 4WMR 6 D5X/SO329
R900353273 4WMM 6 G5X/F/B08
R900353299 DBDS 6 K1X/315JV
R900353547 MH3WA 06 CG1X/004M02
R900353560 S 20 A2.0//12
R900353658 L-DB 40 F2-3X/16Y
R900353670 LFA 32 H2-6X/F
R900353691 DBETR-1X/315G24K4M-381
R900353738 L-DB 65 F2-3X/16
R900353789 L-DB 40 F2-3X/16
R900353821 MK 20 G1X/V/12
R900354070 G 578/01
R900354192 L-DB 80 F2-3X/16Y
R900354272 S 25 A5.0//12
R900354276 DR 20 K5-1X/200YMJ
R900354439 DR 5 DP2-1X/400XYM
R900354476 MHFS 25 FB1-1X/B63M11
R900354564 3WMR 6 A5-5X/SO45
R900354570 FDR 5 DP3-1X/150Y
R900354593 RS 415-1X/200/1,0/1,0Y
R900354636 SL 30 GB3-3X/SO 250
R900355108 RS 417/J
R900355146 MHDBD 10 K2-1X/200M-017
R900355274 4WMM 6 D5X/F SO67
R900355434 ZDC 25 PT-2X/XM
R900355471 W-S 40 K1-3X/
R900355475 H-4WH 22 E7X/SO8
R900355607 MH3WA 06 CG1X/010M01
R900356093 L-DB 80 F2-3X/16
R900356166 L-DB 80 F2-3X/16U
R900356258 M-SR 8 KE50-1X/
R900356291 M-SR 10 KE00-1X/
R900356419 4TH 7 G28-1X/M01-008
R900356420 2TH 7 L28-1X/M01-008
R900356466 S 10 A2.0//12
R900356471 DB 20 G2-4X/50/12 W65
R900356590 DRV 06 -1-1X/V
R900356616 LC 40 A00E6X/
R900356736 G 576/01
R900356765 M-SR 25 KE50-1X/V
R900356969 M-SR 30 KE30-1X/V
R900356970 M-SR 30 KE02-1X/V
R900357091 MH6WH 22 AG1X/003M01
R900357120 G 282/12
R900357152 DB 10 G2-4X/200XY W65
R900357416 4WH 6 M5X/
R900357438 M-SR 8 KE02-1X/
R900357445 M-SR 25 KE05-1X/V
R900357465 HM 5-3X/200-230
R900357477 L-DB 50 F2-3X/16U
R900357531 Z1S 10 T1-3X/V SO30

力士乐溢流阀ZDB6VB2-4X/315V