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液控单向阀是依靠控制流体压力，可以使单向阀反向流通的阀。这种阀在煤矿机械的液压支护设备中占有较重要的地位。液控单向阀与普通单向阀不同之处是多了一个控制油路K，当控制油路未接通压力油液时，液控单向阀就象普通单向阀一样工作，压力油只从进油口流向出油口，不能反向流动。当控制油路油控制压力输入时，活塞顶杆在压力油作用下向右移动，用顶杆顶开单向阀，使进出油口接通。若出油口大于进油口就能使油液反向流动。
Z2S22-1-51/ REXROTH液压锁
力士乐叠加式液压锁单向阀Z2S 22
R900433032 Z2S22A1-5X/
R900539017 Z2S22A1-5X/SO21
R900346704 Z2S22A1-5X/V
R900457907 Z2S22A2-5X/
R900589414 Z2S22A2-5X/V
R900507469 Z2S22A3-5X/
R900988977 Z2S22A3-5X/V
R900522102 Z2S22A4-5X/
R900433037 Z2S22B1-5X/
R900533752 Z2S22B1-5X/V
R901017619 Z2S22B1-5X/VSO60
R900072796 Z2S22B1-5X=
R900437818 Z2S22B2-5X/
R900591053 Z2S22B2-5X/V
R900528638 Z2S22B3-5X/
R900509911 Z2S22B4-5X/
R900432915 Z2S22-1-5X/
R900443803 Z2S22-1-5X/SO21
R900436495 Z2S22-1-5X/V
R900072795 Z2S22-1-5X=
R900433031 Z2S22-2-5X/
R900525586 Z2S22-2-5X/V
R900439719 Z2S22-3-5X/
R900476296 Z2S22-3-5X/V
R900435968 Z2S22-4-5X/
R901337072 Z2S22-4-5X/V
R987123806 Z2S22-4-5X/V
R987123806 Z2S22-4-5X/V
R978859136 Z2S22B3-5X/V
R978859137 Z2S22B4-5X/V
力士乐REXROTH单向阀，先导式Z2S 32
R900561268 Z2S32A1X/
R900902028 Z2S32B1X/
R900941301 Z2S32B1X/V
R900342107 Z2S32-1X/
R901254994 Z2S32-1X/V
力士乐REXROTH液控单向阀SV 6
R901320289 SV6PA1-6X/
R901429568 SV6PA1-6X/V
R901407741 SV6PA2-6X/
R901394118 SV6PA3-6X/J50
R900494086 SV6PB1-6X/
R900516740 SV6PB1-6X/J
R900593008 SV6PB1-6X/V
R900411995 SV6PB1-6X/W64
R900589253 SV6PB2-6X/
R901353602 SV6PB2-6X/J50
R900516497 SV6PB2-6X/V
R900598166 SV6PB3-6X/
R900597481 SV6PB3-6X/V
R900586840 SV6PB4-6X/
R900247185 SV6PB4-6X/V
力士乐液控单向阀SV 10...32
R900483368 SV10GA1-4X/
R900481097 SV10GA1-4X//12
R900426680 SV10GA1-4X//5
R900586980 SV10GA1-4X/J
R901430216 SV10GA1-4X/J3
R900469894 SV10GA1-4X/SO43
R900465776 SV10GA1-4X/V
R900462117 SV10GA1-4X/V/12
R900437841 SV10GA1-4X/V/5
R900072367 SV10GA1-4X==PL
R900455015 SV10GA2-4X/
R900222361 SV10GA2-4X//12
R900481120 SV10GA2-4X/V
R900477368 SV10GA2-4X/V/12
R900402853 SV10GA3-4X/
R900514060 SV10GA3-4X//12
R900519481 SV10GA3-4X/J
R900032320 SV10GA3-4X/V
R900596177 SV10GA4-4X/
R978905884 SV10GA4-4X/12
R900511928 SV10GA4-4X/SO287
R900509845 SV10GA4-4X/V
R983073301 SV10GA4-4X/VIN010
R983070087 SV10GB2-4X/IN010
R900453511 SV10GB1-4X/
R900426646 SV10GB1-4X//12
R900522959 SV10GB1-4X/J
R900440206 SV10GB1-4X/SO267
R900428704 SV10GB1-4X/SO43
R900442169 SV10GB1-4X/V
R978856677 SV10GB1-4X/V/12
R901328265 SV10GB1-4X=
R900464954 SV10GB2-4X/
R978867297 SV10GB2-4X/12
R978867297 SV10GB2-4X/12
R900033054 SV10GB2-4X/B08
R900509453 SV10GB2-4X/V
R900403533 SV10GB3-4X/
R900566670 SV10GB3-4X//12
R901426827 SV10GB3-4X/QMG24
R900455086 SV10GB4-4X/
R978864037 SV10GB4-4X/12
R900509610 SV10GB4-4X/V
R900509604 SV10GB4-4X/VSO266
R900504017 SV10KA1-4X/V
R983030709 SV10PA1-4XIN010
R900483369 SV10PA1-4X/
R900389885 SV10PA1-4X//5
R900082425 SV10PA1-4X//50
R900438933 SV10PA1-4X/J
R901436576 SV10PA1-4X/J3
R900533905 SV10PA1-4X/MK
R900463364 SV10PA1-4X/V
R978875670 SV10PA1-4X/VSO43A-1227
R900020393 SV10PA1-4X/V/12
R901248020 SV10PA1-4X=
R900451042 SV10PA2-4X/
R900591533 SV10PA2-4X/J
R901164422 SV10PA2-4X/J3
R900403578 SV10PA2-4X/V
R983046319 SV10PA2-4X/V
R900459915 SV10PA3-4X/
R900517363 SV10PA3-4X/J
R901440742 SV10PA3-4X/J3
R900466324 SV10PA3-4X/V
R983069998 SV10PA3-4X/VIN010
R900582637 SV10PA4-4X/
R983062599 SV10PA4-4X/IN010
R900058707 SV10PA4-4X/SO287
R901114401 SV10PA4-4X/V
R900467724 SV10PB1-4X/
R900754246 SV10PB1-4X//12
R900506962 SV10PB1-4X/MIL15
R900580732 SV10PB1-4X/SO97
R900423202 SV10PB1-4X/V
R983061438 SV10PB24X/VIN10
R900403672 SV10PB2-4X/
R900049468 SV10PB2-4X//50
R900582578 SV10PB2-4X/V
R900464707 SV10PB3-4X/
R983067837 SV10PB3-4X/IN010
R901426812 SV10PB3-4X/QMG24
R901098930 SV10PB3-4X/V
R901254058 SV10PB3-4X/VSO325
R900505678 SV10PB4-4X/
R900500295 SV10PB4-4X/V
R900587549 SV15GA1-4X/
R900503632 SV15GA1-4X//12
R900533195 SV15GA1-4X/J
R900599609 SV15GA1-4X/SO246
R900228258 SV15GA1-4X/SO67
R900500841 SV15GA1-4X/V
R900532575 SV15GA1-4X/V/12
R900501980 SV15GA2-4X/
R900029494 SV15GA2-4X//12
R900501010 SV15GA2-4X/V
R978865277 SV15GA2-4X/V/12
R900502709 SV15GA3-4X/
R900029335 SV15GA3-4X//12
R900035312 SV15GA3-4X/V
R900203833 SV15GA4-4X/
R901019898 SV15GA4-4X//12
R978914280 SV15GA4-4X/12
R900224092 SV15GA4-4X/V
R900501333 SV15GB1-4X/
R900074608 SV15GB1-4X//12
R901007605 SV15GB1-4X/V
R901013993 SV15GB1-4X/V/12
R900599814 SV15GB2-4X/
R900519888 SV15GB2-4X/J
R900509516 SV15GB2-4X/V
R900520859 SV15GB3-4X/
R900705091 SV15GB3-4X//12
R901050475 SV15GB3-4X/V
R900503588 SV15GB4-4X/
R900220496 SV15GB4-4X//12
R900080297 SV15GB4-4X/V
R900587550 SV20GA1-4X/
R900508425 SV20GA1-4X//12
R900510860 SV20GA1-4X//5
R900500292 SV20GA1-4X/V
R900518477 SV20GA1-4X/V/12
R900072649 SV20GA1-4X=
R900500216 SV20GA2-4X/
R900518319 SV20GA2-4X//12
R900053412 SV20GA2-4X/V
R900599639 SV20GA3-4X/
R900203988 SV20GA3-4X//12
R900511197 SV20GA4-4X/
R900511371 SV20GA4-4X/V
R900598553 SV20GB1-4X/
R900074693 SV20GB1-4X//12
R900528413 SV20GB1-4X/V
R901000277 SV20GB1-4X/V/12
R978872250 SV20GB1-4X/V/12
R983061437 SV20GB24X/VIN10
R900599506 SV20GB2-4X/
R983068720 SV20GB2-4X/IN010
R900059115 SV20GB2-4X/J
R901318587 SV20GB2-4X/V
R900502808 SV20GB3-4X/
R900059482 SV20GB3-4X//12
R900020921 SV20GB3-4X/SO295
R900500842 SV20GB4-4X/
R900065256 SV20GB4-4X/V
R900587557 SV20PA1-4X/
Z2S22-1-51/ REXROTH液压锁
调速阀：调速阀是进行了压力补偿的节流阀。它由定差减压阀和节流阀串联而成。节流阀前、后的压力分别引到减压阀阀芯右、左两端，当负载压力增大，于是作用在减压阀芯左端的液压力增大，阀芯右移，减压口加大，压降减小，使也增大，从而使节流阀的压差保持不变；反之亦然。这样就使调速阀的流量恒定不变。在载荷压力变化时能保持节流阀的进出口压差为定值。这样，在节流口面积调定以后，不论载荷压力如何变化，调速阀都能保持通过节流阀的流量不变，从而使执行元件的运动速度稳定。
Z2S22-1-51/ REXROTH液压锁
Z2S22-1-51/ REXROTH液压锁
调速阀：调速阀是进行了压力补偿的节流阀。它由定差减压阀和节流阀串联而成。节流阀前、后的压力分别引到减压阀阀芯右、左两端，当负载压力增大，于是作用在减压阀芯左端的液压力增大，阀芯右移，减压口加大，压降减小，使也增大，从而使节流阀的压差保持不变；反之亦然。这样就使调速阀的流量恒定不变。在载荷压力变化时能保持节流阀的进出口压差为定值。这样，在节流口面积调定以后，不论载荷压力如何变化，调速阀都能保持通过节流阀的流量不变，从而使执行元件的运动速度稳定。
Z2S22-1-51/ REXROTH液压锁
R900432915 Z2S 22-1-5X/
R900432981 DZ 6 DP1-5X/210XY
R900432982 DZ 6 DP1-5X/25YM
R900433026 G 378/01
R900433031 Z2S 22-2-5X/
R900433032 Z2S 22 A1-5X/
R900433037 Z2S 22 B1-5X/
R900433058 ZDR 10 DB1-5X/75YM
R900433209 MS 5 A2X/V
R900433216 DBDS 6 G1X/315V
R900433262 ZDR 10 VP4-3X/50YM
R900433263 ZDR 10 VP4-3X/100YM
R900433335 ZDB 6 VA3-4X/100V
R900433336 ZDB 6 VB3-4X/100V
R900433346 DR 6 DP2-5X/75YM/12
R900433350 ZDR 6 DP2-4X/210YM/12
R900433356 DZ 6 DP2-5X/75YM/12
R900433389 F 15 P3-2X/25L
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
R900433807 DBDH 10 K1X/630
R900433817 DB 20 K2-1X/50XYU
R900433818 ZDB 6 VP3-4X/315V
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
R900434208 FMR 30 P13-1X/O
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
R900434583 ZDR 10 VA5-3X/50Y
R900434650 DL 30 D3P1X/S2
R900434675 Z2S 16-2-5X/V
R900434689 DBDA 15 G1X/50
R900434780 Z2S 10A3-3X/SO40
R900434781 Z2S 10B3-3X/SO40
R900434782 Z2S 6B3-6X/SO60
R900434785 DR 10 K4-3X/100YMV
R900434793 Z2S 10-1-3X/SO30
R900434798 Z2S 10-1-3X/V SO30
R900434799 Z2S 10-2-3X/SO30
R900434800 Z2S 10B1-3X/SO30
R900434820 DBDH 10 P1X/400
R900434836 4TH 7 A05-1X/M01-008
R900434971 MH2DBV 32 P2-1X/420YM
R900434972 MH2DBVV 32 BP2-1X/420YM
R900434979 F 10 P1-3X/10L SO203
R900434980 S 15 A1.0/SO 68
R900435016 DBDS 10 P1X/200V
R900435042 Z2DB 10 VC1-4X/200
R900435108 DBD. 30 P1X/ ...
R900435222 DBDH 10 K1X/25
R900435291 FMR 15 G14-1X/O
R900435309 H-4WH 32 G6X/SO624
R900435367 DBDA 15 G1X/25
R900435384 FMR 20 G23-1X/O
R900435450 DBDS 6 P1X/315V
R900435504 DR 6 DP2-5X/150YMV/12
R900435525 Z2S 10B2-3X/
R900435578 HED 1 KA4X/350KL24
R900435663 G 409/01
R900435680 DR 6 DP2-5X/210YMV
R900435686 DR 6 DP2-5X/150YMV
R900435735 MH2WH 06 AG1X/003NM14
R900435755 DBDR 6 G1X/200
R900435824 4WS2EM10-4X/20B2ET315K8DM
R900435960 ZDR 6 DP7-4X/210YM
R900435968 Z2S 22-4-5X/
R900436019 4WH 6 C5X/SO82
R900436044 DBDA 20 G1X/100
R900436165 2FRM 5-3X/1,2Q SO237
R900436495 Z2S 22-1-5X/V
R900436516 DBDS 30 G1X/315V
R900436537 ZDR 10 VA5-3X/100Y
R900436586 DR 6 DP3-5X/150YMV
R900436608 DBDH 10 P1X/630
R900436618 G 431/01
R900436645 S 20 A1.0/J
R900436686 MHB 10 SFM1X/00Z315T15V15
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
Z2S22-1-51/ REXROTH液压锁
