力士樂溢流閥ZDB6VP2-42/100V是上海韋米機電設備有限公司主營產品之一，銷售熱線： ；聯系人：雷青；在線QQ：---；移動熱線： ；REXROTH品牌備件上海優質供應商，常規產品現貨供應。歡迎新老客戶來電咨詢采購！
溢流閥是一種液壓壓力控制閥，在液壓設備中主要起定壓溢流作用，穩壓，系統卸荷和安全保護作用。
定壓溢流作用：在定量泵節流調節系統中，定量泵提供的是恒定流量。當系統壓力增大時，會使流量需求減小。此時溢流閥開啟，使多余流量溢回油箱，保證溢流閥進口壓力，即泵出口壓力恒定（閥口常隨壓力波動開啟）。
溢流閥一般有兩種結構：1、直動型溢流閥 。2、先導式溢流閥。
對溢流閥的主要要求：調壓范圍大，調壓偏差小，壓力振擺小，動作靈敏，過載能力大，噪聲小。
先導型溢流閥的導閥部分結構尺寸較小，調壓彈簧不必很強，因此壓力調整比較輕便。但因先導型溢流閥要在先導閥和主閥都動作后才能起控制作用，因此反應不如直動型溢流閥靈敏。
與三節同心結構相比，二節同心結構的特點是：①主閥芯僅與閥套和主閥座有同心度要求，免去了與閥蓋的配合，故結構簡單，加工和裝配方便。②過流面積大，在相同流量的情況下，主閥開啟高度小；或者在相同開啟高度的情況下，其通流能力大，因此，可做得體積小、重量輕。③主閥芯與閥套可以通用化，便于組織批量生產。
先導溢流閥的主閥上腔壓力，是由先導閥加于控制的。如果先導閥正常工作，即主閥上腔有先導閥規定的壓力，則整個溢流閥就會在系統壓力到達調定壓力時其主閥口打開一定的開度，一方面能將系統多余流量流回油箱，另一方面又能維持系統的壓力為先導閥的調定值。可見，先導閥主要管壓力，主閥服從先導閥的領導，在先導閥動作時將主閥口開到合適大小，正好將多余流量流出去，又不影響系統壓力。
淺析先導式溢流閥與直動型溢流閥的區別
溢流閥可分為直動型和先導式兩類。直動型溢流閥是作用在閥芯上的主油路液壓力與調壓彈簧力直接相平衡的溢流閥。根據閥口和測壓面結構形式不同，形成三種基本結構。
先導式溢流閥：主閥彈簧主要用于克服閥芯的摩擦力，彈簧剛度小。當溢流量變化引起主閥彈簧壓縮量變化時，彈簧力變化較小，因此閥進口壓力變化也較小。調壓精度高，廣泛應用于高壓、大流量系統。
溢流閥的閥芯在移動過程中要受到摩擦力的作用，閥口開大和關小時的摩擦力方向剛好相反，使溢流閥開啟時的特性與關閉時的特性產生差異。
力士樂溢流閥ZDB6VP2-42/100V
力士樂REXROTH溢流閥，先導式
力士樂REXROTH先導式溢流閥ZDB 6, Z2DB 6
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力士樂REXROTH先導式溢流閥ZDB 10, Z2DB 10
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R900512182 Z2DB10VC.-4X/...V
R900967514 Z2DB10VC1-4X/100
R900510772 Z2DB10VC1-4X/100V
R900435042 Z2DB10VC1-4X/200
R900437272 Z2DB10VC1-4X/200V
R900967915 Z2DB10VC1-4X/315
R900599776 Z2DB10VC1-4X/315V
R900967513 Z2DB10VC1-4X/50
R900552548 Z2DB10VC1-4X/50V
R900422071 Z2DB10VC2-4X/100
R900521455 Z2DB10VC2-4X/100JV
R901206084 Z2DB10VC2-4X/100P70
R900904299 Z2DB10VC2-4X/100P80
R900425700 Z2DB10VC2-4X/100V
R900430550 Z2DB10VC2-4X/200
R900955814 Z2DB10VC2-4X/200MIL15
R900955814 Z2DB10VC2-4X/200MIL15
R901145422 Z2DB10VC2-4X/200-40
R901138428 Z2DB10VC2-4X/200-70
R901191061 Z2DB10VC2-4X/200J
R900521447 Z2DB10VC2-4X/200JV
R901268265 Z2DB10VC2-4X/200P180
R900496390 Z2DB10VC2-4X/200V
R900431828 Z2DB10VC2-4X/315
R901086782 Z2DB10VC2-4X/315MIL15
R901138594 Z2DB10VC2-4X/315-205
R901229979 Z2DB10VC2-4X/315-250V
R901371287 Z2DB10VC2-4X/315-300
R901350258 Z2DB10VC2-4X/315-300V
R901015176 Z2DB10VC2-4X/315J
R900411430 Z2DB10VC2-4X/315V
R900426865 Z2DB10VC2-4X/315VSO450
R900967515 Z2DB10VC2-4X/50
R900441974 Z2DB10VC2-4X/50V
R976718930 Z2DB10VC2-4X/A315B100VSO57-325
R976718929 Z2DB10VC2-4X/A315B50VSO57-325
R900598834 Z2DB10VC3-4X/100V
R900439764 Z2DB10VC3-4X/200
R900426667 Z2DB10VC3-4X/200V
R900583299 Z2DB10VC3-4X/315V
R900586469 Z2DB10VC3-4X/50V
R900920715 Z2DB10VC7-4X/100V
R900515778 Z2DB10VC7-4X/200V
R900722255 Z2DB10VC7-4X/315V
R900515779 Z2DB10VC7-4X/50V
R900507057 Z2DB10VD.-4X/...V
R900967518 Z2DB10VD1-4X/100
R900505079 Z2DB10VD1-4X/100V
R900967519 Z2DB10VD1-4X/200
R900442576 Z2DB10VD1-4X/200
R900443479 Z2DB10VD1-4X/200V
R900967917 Z2DB10VD1-4X/315
R900523756 Z2DB10VD1-4X/315V
R900967516 Z2DB10VD1-4X/50
R900967517 Z2DB10VD1-4X/50V
R900425928 Z2DB10VD2-4X/100
R901039302 Z2DB10VD2-4X/100-30
R901039303 Z2DB10VD2-4X/100-40
R901039309 Z2DB10VD2-4X/100-60
R901072625 Z2DB10VD2-4X/100-70
R900411413 Z2DB10VD2-4X/100V
R900433648 Z2DB10VD2-4X/100VSO30
R900440550 Z2DB10VD2-4X/200
R901039310 Z2DB10VD2-4X/200SO53
R901039311 Z2DB10VD2-4X/200SO54
R901066646 Z2DB10VD2-4X/200-105
R901041137 Z2DB10VD2-4X/200-140
R901041137 Z2DB10VD2-4X/200-140
R901113407 Z2DB10VD2-4X/200-150V
R901072624 Z2DB10VD2-4X/200-160
R901041134 Z2DB10VD2-4X/200-30
R901146519 Z2DB10VD2-4X/200-40
R901041135 Z2DB10VD2-4X/200-50
R901041136 Z2DB10VD2-4X/200-60
R901131870 Z2DB10VD2-4X/200-70
R901131870 Z2DB10VD2-4X/200-70
R901057563 Z2DB10VD2-4X/200-90
R900582337 Z2DB10VD2-4X/200J
R900518717 Z2DB10VD2-4X/200JV
R900411358 Z2DB10VD2-4X/200V
R900408156 Z2DB10VD2-4X/315
R901129985 Z2DB10VD2-4X/315-210
R900434937 Z2DB10VD2-4X/315J
R900437271 Z2DB10VD2-4X/315JV
R900411462 Z2DB10VD2-4X/315V
R901052228 Z2DB10VD2-4X/315V=TE
R900444618 Z2DB10VD2-4X/50
R900479846 Z2DB10VD2-4X/50V
R900598833 Z2DB10VD3-4X/100
R900503367 Z2DB10VD3-4X/100V
R900449068 Z2DB10VD3-4X/200
R900500928 Z2DB10VD3-4X/200V
R900587771 Z2DB10VD3-4X/315V
R900580734 Z2DB10VD7-4X/200
R900772006 Z2DB10VD7-4X/200V
R900786685 Z2DB10VD7-4X/315-225
R900929694 Z2DB10VD7-4X/315-250V
R900583042 Z2DB10VD7-4X/315V
R901061609 Z2DB10VD7-4X100V
R978895588 Z2DB10VD3-4X/315
R900587809 ZDB10VA.-4X/...V
R900927065 ZDB10VA1-4X/100
R901133117 ZDB10VA1-4X/100-40V
R901174980 ZDB10VA1-4X/100-90V
R900510491 ZDB10VA1-4X/100V
R900501258 ZDB10VA1-4X/200
R900506739 ZDB10VA1-4X/200V
R900569824 ZDB10VA1-4X/315
R900596771 ZDB10VA1-4X/315V
R900967520 ZDB10VA1-4X/50
R900967521 ZDB10VA1-4X/50V
R900427434 ZDB10VA2-4X/100
R900424537 ZDB10VA2-4X/100V
R900421265 ZDB10VA2-4X/200
R901025502 ZDB10VA2-4X/200-100V
R900776766 ZDB10VA2-4X/200-130V
R901018335 ZDB10VA2-4X/200-140V
R901079890 ZDB10VA2-4X/200-95
R900502038 ZDB10VA2-4X/200J
R901085240 ZDB10VA2-4X/200JV
R900422189 ZDB10VA2-4X/200V
R900430984 ZDB10VA2-4X/315
R901052771 ZDB10VA2-4X/315-215
R901310101 ZDB10VA2-4X/315-255V
R900409955 ZDB10VA2-4X/315V
R900432106 ZDB10VA2-4X/50
R900969830 ZDB10VA2-4X/50MIL15
R900751018 ZDB10VA2-4X/50P10V
R901154578 ZDB10VA2-4X/50P30V
R900423244 ZDB10VA2-4X/50V
R900590340 ZDB10VA2-4X/50VSO30
R900906981 ZDB10VA3-4X/100
R900587577 ZDB10VA3-4X/100V
R900449071 ZDB10VA3-4X/200
R900468215 ZDB10VA3-4X/200V
R900580391 ZDB10VA3-4X/315
R900589823 ZDB10VA3-4X/315V
R900425958 ZDB10VA3-4X/50
R900507069 ZDB10VA3-4X/50V
R901114420 ZDB10VA7-4X/100V
R900522100 ZDB10VA7-4X/200V
R901032480 ZDB10VA7-4X/315V
R900706121 ZDB10VA7-4X/50V
R900517585 ZDB10VB.-4X/...V
R900967524 ZDB10VB1-4X/100
R900565776 ZDB10VB1-4X/100V
R900581302 ZDB10VB1-4X/200
R900595254 ZDB10VB1-4X/200V
R900967918 ZDB10VB1-4X/315
R900910338 ZDB10VB1-4X/315V
R900967523 ZDB10VB1-4X/50
R900967522 ZDB10VB1-4X/50V
R900422073 ZDB10VB2-4X/100
R901183215 ZDB10VB2-4X/100-60
R900409951 ZDB10VB2-4X/100V
R900422261 ZDB10VB2-4X/200
R900722475 ZDB10VB2-4X/200-190V
R900422215 ZDB10VB2-4X/200V
R900425681 ZDB10VB2-4X/315
R900786686 ZDB10VB2-4X/315-150
R900927842 ZDB10VB2-4X/315J
R901268377 ZDB10VB2-4X/315P300
R900409956 ZDB10VB2-4X/315V
R901402304 ZDB10VB2-4X/315V=KM
R900534186 ZDB10VB2-4X/350V
R900967525 ZDB10VB2-4X/50
R900949361 ZDB10VB2-4X/50MIL15
R900425723 ZDB10VB2-4X/50V
R900580968 ZDB10VB3-4X/100
R900506373 ZDB10VB3-4X/100V
R900583297 ZDB10VB3-4X/200V
R900571103 ZDB10VB3-4X/315V
R900593169 ZDB10VB3-4X/50V
R900722254 ZDB10VB7-4X/100V
R900551707 ZDB10VB7-4X/200V
R901335301 ZDB10VB7-4X/315V
R901114418 ZDB10VB7-4X/50
R900583141 ZDB10VP.-4X/...V
R900967527 ZDB10VP1-4X/100
R900596905 ZDB10VP1-4X/100V
R900424559 ZDB10VP1-4X/200
R900471657 ZDB10VP1-4X/200V
R900967919 ZDB10VP1-4X/315
R900402018 ZDB10VP1-4X/315V
R900967526 ZDB10VP1-4X/50
R900520338 ZDB10VP1-4X/50V
R900431065 ZDB10VP2-4X/100
R900902076 ZDB10VP2-4X/100P60V
R900964380 ZDB10VP2-4X/100P70V
R900409959 ZDB10VP2-4X/100V
R901136398 ZDB10VP2-4X/160V
R900428468 ZDB10VP2-4X/200
R900521040 ZDB10VP2-4X/200SO280
R900440299 ZDB10VP2-4X/200SO450
R900929776 ZDB10VP2-4X/200JV
R900409937 ZDB10VP2-4X/200V
R900425927 ZDB10VP2-4X/315
R900563544 ZDB10VP2-4X/315MIL15
R900786688 ZDB10VP2-4X/315-210
R900786687 ZDB10VP2-4X/315-225
R901020262 ZDB10VP2-4X/315-245
R901370272 ZDB10VP2-4X/315P250V
R901364367 ZDB10VP2-4X/315P270V
R900409958 ZDB10VP2-4X/315V
R900534185 ZDB10VP2-4X/350V
R900440098 ZDB10VP2-4X/50
R907422752 ZDB10VP2-4X/50/V
R900449059 ZDB10VP2-4X/50J
R900972543 ZDB10VP2-4X/50P10V
R900963931 ZDB10VP2-4X/50P25V
R900422752 ZDB10VP2-4X/50V
R901136397 ZDB10VP2-4X/80V
R900522880 ZDB10VP3-4X/100
R900583303 ZDB10VP3-4X/100V
R901136401 ZDB10VP3-4X/160V
R900439335 ZDB10VP3-4X/200
R900950503 ZDB10VP3-4X/200-160V
R900583145 ZDB10VP3-4X/200V
R900430129 ZDB10VP3-4X/315
R900431380 ZDB10VP3-4X/315V
R900460358 ZDB10VP3-4X/50
R900560613 ZDB10VP3-4X/50V
R901136399 ZDB10VP3-4X/80V
R900441130 ZDB10VP7-4X/100
R900513706 ZDB10VP7-4X/100V
R900580733 ZDB10VP7-4X/200
R900562255 ZDB10VP7-4X/200V
R900565406 ZDB10VP7-4X/315
R900550125 ZDB10VP7-4X/315V
R900967531 ZDB10VT1-4X/100
R900594382 ZDB10VT1-4X/100V
R900967532 ZDB10VT1-4X/200
R900967529 ZDB10VT1-4X/200V
R900967921 ZDB10VT1-4X/315
R900967922 ZDB10VT1-4X/315V
R900967530 ZDB10VT1-4X/50
R900472791 ZDB10VT1-4X/50
R900967528 ZDB10VT1-4X/50V
R900474291 ZDB10VT1-4X/50V
R900967533 ZDB10VT2-4X/100
R900442704 ZDB10VT2-4X/100V
R900967534 ZDB10VT2-4X/200
R900593768 ZDB10VT2-4X/200V
R900967924 ZDB10VT2-4X/315
R900505827 ZDB10VT2-4X/315V
R900428936 ZDB10VT2-4X/50
R900429149 ZDB10VT2-4X/50V
R900435816 ZDB10VT2-4X/50VSO30
R900506267 ZDB10VT2-4X/50VSO43
R900587512 ZDB10VT3-4X/100V
R900455615 ZDB10VT3-4X/50V
R900554170 ZDB10VT3-4X/50V
R900706120 ZDB10VT7-4X/50V
R978854311 ZDB10VP2-4X/200VSO43A-481
力士樂溢流閥ZDB6VP2-42/100V
壓力控制按用途分為溢流閥﹑減壓閥和順序閥。⑴溢流閥：能控制液壓系統在達到調定壓力時保持恒定狀態。用於過載保護的溢流閥稱為安全閥。當系統發生故障，壓力升高到可能造成破壞的限定值時，閥口會打開而溢流，以保證系統的安全。⑵減壓閥：能控制分支回路得到比主回路油壓低的穩定壓力。減壓閥按它所控制的壓力功能不同，又可分為定值減壓閥（輸出壓力為恒定值）﹑定差減壓閥（輸入與輸出壓力差為定值）和定比減壓閥（輸入與輸出壓力間保持一定的比例）。⑶順序閥：能使一個執行元件（如液壓缸﹑液壓馬達等）動作以后，再按順序使其他執行元件動作。油泵產生的壓力先推動液壓缸1運動，同時通過順序閥的進油口作用在面積A 上，當液壓缸1運動完全成后，壓力升高，作用在面積A 的向上推力大於彈簧的調定值后，閥芯上升使進油口與出油口相通，使液壓缸2運動。
力士樂溢流閥ZDB6VP2-42/100V
力士樂REXROTH溢流閥（先導控制閥）(Z)DBT/DZT
0811104007 DBT-G1-1X/160
0811104013 DBT-G1-1X/315
R901139519 DBT-G3-1X/160
0811104021 DBT-G7-1X/160
0811104108 DBT-XP1-1X/160
1817414505 DBT-XP1-1X/160V
0811104109 DBT-XP1-1X/315
1817414506 DBT-XP1-1X/315V
0811104102 DBT-XP2-1X/160
R901129895 DBT-XP2-1X/160-160
R901165445 DBT-XP2-1X/160-80
R901308551 DBT-XP2-1X/160V
1817414503 DBT-XP2-1X/160V=00
0811104103 DBT-XP2-1X/315
R901115009 DBT-XP2-1X/315-160
R901115010 DBT-XP2-1X/315-200
R901115011 DBT-XP2-1X/315-260
R901434315 DBT-XP2-1X/315P220
1817414504 DBT-XP2-1X/315V
0811104131 DBT-XP2-1X/350
0811104106 DBT-XP3-1X/160
0811104107 DBT-XP3-1X/315
0811104104 DBT-XP7-1X/160
1817414507 DBT-XP7-1X/160V
0811104105 DBT-XP7-1X/315
1817414508 DBT-XP7-1X/315V
0811104100 DBT-XP8-1X/160
0811104101 DBT-XP8-1X/315
0811104126 DZT-XA2-1X/160
0811104127 DZT-XA2-1X/315
R901164765 DZT-XA2-1X/315P200
0811104125 DZT-XA2-1X/80
0811104123 DZT-XB2-1X/315
0811104124 DZT-XB2-1X/80
0811104120 ZDBT-XA2-1X/160
1817414513 ZDBT-XA2-1X/160V
0811104121 ZDBT-XA2-1X/315
R901157701 ZDBT-XA2-1X/315-160
R901157707 ZDBT-XA2-1X/315-200
1817414514 ZDBT-XA2-1X/315V
1817414515 ZDBT-XA3-1X/160V
0811104118 ZDBT-XA8-1X/160
0811104119 ZDBT-XA8-1X/315
0811104112 ZDBT-XP2-1X/160
R901430856 ZDBT-XP2-1X/160V
0811104113 ZDBT-XP2-1X/315
R901187308 ZDBT-XP2-1X/315-200
0811104130 ZDBT-XP2-1X/350
0811104116 ZDBT-XP3-1X/160
1817414511 ZDBT-XP3-1X/160V
0811104117 ZDBT-XP3-1X/315
1817414512 ZDBT-XP3-1X/315V
0811104114 ZDBT-XP7-1X/160
0811104115 ZDBT-XP7-1X/315
0811104110 ZDBT-XP8-1X/160
1817414509 ZDBT-XP8-1X/160V
0811104111 ZDBT-XP8-1X/315
1817414510 ZDBT-XP8-1X/315V
力士樂REXROTH溢流閥，直動式ZDBY6D, Z2DBY6D
R987388504 PRESSRELIEFVALVE Z2DBY6DC2-1X/160V/60&
R987388431 PRESSRELIEFVALVE Z2DBY6DC2-1X/315V/60&
R901338950 Z2DBY6DC2-1X/160-100V/60
0811109144 Z2DBY6DC2-1X/160V/60
R901308833 Z2DBY6DC2-1X/315-200V/60
0811109145 Z2DBY6DC2-1X/315V/60
0811109143 Z2DBY6DC2-1X/80V/60
0811109142 Z2DBY6DC3-1X/80V/60
0811109148 Z2DBY6DD2-1X/160V/60
0811109149 Z2DBY6DD2-1X/315V/60
0811109147 Z2DBY6DD2-1X/80V/60
0811109146 Z2DBY6DD3-1X/80V/60
0811109136 ZDBY6DA2-1X/160V/60
0811109137 ZDBY6DA2-1X/315V/60
0811109135 ZDBY6DA2-1X/80V/60
0811109134 ZDBY6DA3-1X/80V/60
0811109140 ZDBY6DB2-1X/160V/60
0811109150 ZDBY6DB2-1X/30V/60SO55
0811109141 ZDBY6DB2-1X/315V/60
0811109139 ZDBY6DB2-1X/80V/60
0811109138 ZDBY6DB3-1X/80V/60
0811109132 ZDBY6DP2-1X/160V/60
9810161177 ZDBY6DP2-1X/160V/62/12
R901395208 ZDBY6DP2-1X/315-315V/60
0811109133 ZDBY6DP2-1X/315V/60
0811109131 ZDBY6DP2-1X/80V/60
9810161176 ZDBY6DP2-1X/80V/62/12
0811109130 ZDBY6DP3-1X/80V/60
力士樂REXROTH溢流閥，直動式ZDB6D, Z2DB6D
R901423499 Z2DB6DC1-2X/350V
R901455381 Z2DB6DC1-2X/50
R901236511 Z2DB6DC2-2X/100-100V
R901423493 Z2DB6DC2-2X/100V
R901461267 Z2DB6DC2-2X/200
R901236489 Z2DB6DC2-2X/200-200V
R901423495 Z2DB6DC2-2X/200V
R901456424 Z2DB6DC2-2X/350
R901423498 Z2DB6DC2-2X/350J3V
R901423497 Z2DB6DC2-2X/350V
R901423492 Z2DB6DC2-2X/50V
R901236448 Z2DB6DC3-2X/100V
R901423501 Z2DB6DC3-2X/350V
R901423505 Z2DB6DD2-2X/100V
R901423506 Z2DB6DD2-2X/200V
R901423504 Z2DB6DD2-2X/50V
R901236485 Z2DB6DD3-2X/100V
R901423481 ZDB6DA2-2X/100V
R901456425 ZDB6DA2-2X/200
R901423482 ZDB6DA2-2X/200V
R901423483 ZDB6DA2-2X/350V
R901423476 ZDB6DA2-2X/50V
R901236410 ZDB6DA3-2X/100V
R901423485 ZDB6DB2-2X/100V
R901423487 ZDB6DB2-2X/200V
R901423490 ZDB6DB2-2X/350V
R901423484 ZDB6DB2-2X/50V
R901236418 ZDB6DB3-2X/100V
R901423474 ZDB6DP1-2X/350MPV
R901431558 ZDB6DP2-2X/100MPV
R901423472 ZDB6DP2-2X/100V
R901431559 ZDB6DP2-2X/200MPV
R901423473 ZDB6DP2-2X/200V
R901236653 ZDB6DP2-2X/350-315MPV
R901422002 ZDB6DP2-2X/350MPV
R901435654 ZDB6DP2-2X/350V
R901423471 ZDB6DP2-2X/50V
R901236402 ZDB6DP3-2X/100MPV
R901423475 ZDB6DP3-2X/350MPV
力士樂REXROTH溢流閥，直動式ZDB10D, Z2DB10D
R901438997 Z2DB10DC2-2X/100V
R901233033 Z2DB10DC2-2X/200V
R901232960 Z2DB10DC2-2X/350V
R901438996 Z2DB10DC2-2X/50V
R901439551 Z2DB10DD2-2X/100V
R901439552 Z2DB10DD2-2X/200V
R901439554 Z2DB10DD2-2X/350VSO350
R901438998 Z2DB10DD2-2X/50V
R901438987 ZDB10DA2-2X/100V
R901439544 ZDB10DA2-2X/200V
R901439545 ZDB10DA2-2X/350V
R901438986 ZDB10DA2-2X/50V
R901439546 ZDB10DA3-2X/200V
R901439548 ZDB10DB2-2X/100V
R901439549 ZDB10DB2-2X/200V
R901439550 ZDB10DB2-2X/350V
R901438992 ZDB10DB2-2X/50V
R901441875 ZDB10DP1-2X/350V
R901438982 ZDB10DP2-2X/100V
R901457726 ZDB10DP2-2X/200MP
R901232957 ZDB10DP2-2X/200V
R901438983 ZDB10DP2-2X/350MPV
R901232959 ZDB10DP2-2X/350V
R901438981 ZDB10DP2-2X/50V
力士樂REXROTH先導式溢流閥DB.K
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力士樂先導式溢流閥DB(C/T)
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R900590646 DB10-2-5X/100
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R900519210 DB10-2-5X/100YUV
R900509059 DB10-2-5X/100YV
R900748673 DB10-2-5X/100YV/12
力士樂溢流閥ZDB6VP2-42/100V
先導溢流閥的主閥上腔壓力，是由先導閥加于控制的。如果先導閥正常工作，即主閥上腔有先導閥規定的壓力，則整個溢流閥就會在系統壓力到達調定壓力時其主閥口打開一定的開度，一方面能將系統多余流量流回油箱，另一方面又能維持系統的壓力為先導閥的調定值。可見，先導閥主要管壓力，主閥服從先導閥的領導，在先導閥動作時將主閥口開到合適大小，正好將多余流量流出去，又不影響系統壓力。
