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单向阀又称止回阀或逆止阀。用于液压系统中防止油流反向流动,或者用于气动系统中防止压缩空气逆向流动。
单向阀Check Valve
单向阀又称止回阀或逆止阀。用于液压系统中防止油流反向流动,或者用于气动系统中防止压缩空气逆向流动。
单向阀有直通式和直角式两种。直通式单向阀用螺纹连接安装在管路上。直角式单向阀有螺纹连接、板式连接和法兰连接三种形式。液控单向阀也称闭锁阀或保压阀，它与单向阀相同，用以防止油液反向流动。但在液压回路中需要油流反向流动时又可利用控制油压，打开单向阀，使油流在两个方向都可流动。液控单向阀采用锥形阀芯，因此密封性能好。在要求封闭油路时，可用此阀作为油路的单向锁紧而起保压作用。液控单向阀控制油的泄漏方式有内泄式和外泄式二种。在油流反向出口无背压的油路中可用内泄式；否则需用外泄式，以降低控制油压力。
力士乐进口节流压力补偿器ZDC25P-21/M力士乐REXROTH比例，高响应和伺服阀配件
力士乐REXROTH压力补偿器
力士乐REXROTH进口节流压力补偿器，直动式ZDC 6
0811401202 ZDC6XA-1X/8M-292
0811401203 ZDC6XB-1X/8M-293
0811401208 ZDC6XP-1X/14M
R901140492 ZDC6XP-1X/25M-291
0811401200 ZDC6XP-1X/8M
0811401201 ZDC6XP-1X/8M-287
力士乐REXROTH进口节流压力补偿器，直动式ZDC 10...32
R900346500 ZDC10P-2X/JM
R901423358 ZDC10P-2X/JV
R900488023 ZDC10P-2X/M
R900351506 ZDC10P-2X/M-197
R900532225 ZDC10P-2X/M-206
R900508496 ZDC10P-2X/M-450
R900333131 ZDC10P-2X/V
R900525402 ZDC10P-2X/V-156
R900382167 ZDC10P-2X/XJM
R900940793 ZDC10P-2X/XJM-156
R900572247 ZDC10P-2X/XLM
R900565236 ZDC10P-2X/XLV
R900488820 ZDC10P-2X/XM
R900385284 ZDC10P-2X/XM-153
R900370145 ZDC10P-2X/XM-197
R900504040 ZDC10P-2X/XM-206
R900514134 ZDC10P-2X/XM-283
R900371646 ZDC10P-2X/XV
R900537656 ZDC10PT-2X/JM
R900490488 ZDC10PT-2X/M
R900484644 ZDC10PT-2X/V
R900445772 ZDC10PT-2X/XJM
R900948651 ZDC10PT-2X/XLM
R900340757 ZDC10PT-2X/XM
0811401218 ZDC10XP-1X/12XLM-290
R900372010 ZDC16P-2X/JM
R900382169 ZDC16P-2X/JM
R900461186 ZDC16P-2X/JM-206
R900489668 ZDC16P-2X/M
R900373350 ZDC16P-2X/M-156
R900390678 ZDC16P-2X/M-206
R900475993 ZDC16P-2X/M-263
R900558988 ZDC16P-2X/M=LB
R900489670 ZDC16P-2X/V
R900578482 ZDC16P-2X/V-156
R900461181 ZDC16P-2X/XJM
R900481032 ZDC16P-2X/XJM-206
R900489669 ZDC16P-2X/XM
R900428146 ZDC16P-2X/XM-153
R900380465 ZDC16P-2X/XM-197
R900510906 ZDC16P-2X/XM-206
R900373200 ZDC16P-2X/XM-263
R900584022 ZDC16P-2X/XMR-206
R900489671 ZDC16P-2X/XV
R900591116 ZDC16P-2X/XV-206
R900336562 ZDC16PT-2X/M
R900929476 ZDC16PT-2X/M-205
R900598070 ZDC16PT-2X/M-206
R900344131 ZDC16PT-2X/XJM
R900341073 ZDC16PT-2X/XM
R900368692 ZDC16PT-2X/XM-205
R979005983 ZDC16-P-2X/XM-SO41-6873
R900382205 ZDC25P-2X/JM
R901423357 ZDC25P-2X/JV
R900344369 ZDC25P-2X/M
R900383141 ZDC25P-2X/M-206
R900558990 ZDC25P-2X/M-206=LB
R900460622 ZDC25P-2X/M-263
R900501958 ZDC25P-2X/M-282
R900503659 ZDC25P-2X/M-283
R900558989 ZDC25P-2X/M=LB
R900340362 ZDC25P-2X/V
R900534692 ZDC25P-2X/V-206
R900382170 ZDC25P-2X/XJM
R900581816 ZDC25P-2X/XJM-206
R900948365 ZDC25P-2X/XJV
R900341982 ZDC25P-2X/XM
R900489027 ZDC25P-2X/XM
R900507374 ZDC25P-2X/XM-206
R900388292 ZDC25P-2X/XM-263
R900489028 ZDC25P-2X/XV
R900453739 ZDC25PT-2X/JM
R900348353 ZDC25PT-2X/M
R900349925 ZDC25PT-2X/M-156
R900356119 ZDC25PT-2X/M-205
R900356694 ZDC25PT-2X/M-206
R901192167 ZDC25PT-2X/V
R900355434 ZDC25PT-2X/XM
R900369118 ZDC25PT-2X/XM-205
R900575336 ZDC32P-2X/JM
R900588202 ZDC32P-2X/JM-206
R900344370 ZDC32P-2X/M
R900392685 ZDC32P-2X/M-205
R900519523 ZDC32P-2X/M-284
R900599013 ZDC32P-2X/M-206
R900923263 ZDC32P-2X/M-283
R900437430 ZDC32P-2X/V
R900550289 ZDC32P-2X/V-283
R900461179 ZDC32P-2X/XJM
R900513246 ZDC32P-2X/XJM-206
R900352039 ZDC32P-2X/XM
R900438930 ZDC32P-2X/XM-223
R900506678 ZDC32P-2X/XM-206
R900501957 ZDC32P-2X/XM-282
R900503658 ZDC32P-2X/XM-283
R900586948 ZDC32P-2X/XV
R900579217 ZDC32P-2X/XV-283
R900922729 ZDC32P-2X/XV-285
R976707213 ZDC10P-2X/XMSO57-073
力士乐进口节流压力补偿器ZDC25P-21/M单向阀是流体只能沿一个方向流通，另一方向不能通过的阀。单向阀就是止回阀 止回阀只供防止各类管路或设备上流体介质逆流的单向启闭阀。 止回阀用途广泛，有很多种类，下面说的是供水和热力常用的止回阀： 1、弹簧式：液体由下而上，依靠压力顶起弹簧控制的阀瓣，压力消失后，弹簧力将阀瓣压下，封闭液体倒流。常用于通径较小的止回阀。 2、重力式：和弹簧式相似，依靠阀瓣的自身重力封闭，防止倒流。 3、旋启式：液体在阀体内直通，依靠压力顶开一侧的旋转阀瓣，压力失去后，阀瓣依靠自重回位，反向的液体压力封闭阀瓣。 其它的单向阀（止回阀），如排污的止回阀，人防的防爆阀和液体使用的止回阀的原理是大同小异
力士乐进口节流压力补偿器ZDC25P-21/M
R900344369 ZDC 25 P-2X/M
R900344370 ZDC 32 P-2X/M
R900344425 DB 10 G2-4X/100V W65
R900344473 DBDS 10 K1X/25J
R900344532 DBDH 6 K1X/100 SO61
R900344549 M-SR 10 KE05-1X/
R900344568 4WH 6 D5X/SO82
R900344778 M-SR 25 KE05-1X/
R900344782 DBDS 6 K1X/100 SO60
R900344919 M-SR 30 KE05-1X/
R900345141 L-DB 125 F2-3X/16
R900345159 DB 20 K2-1X/50YU
R900345310 DBDH 6 G1X/200/12
R900345319 S 8 A2.0//12
R900345330 DBGT-1X/50E1
R900345372 M-SR 15 KE05-1X/
R900345502 DBDS 20 G1X/200/12
R900345547 ERSATZTEIL SM 12 L10/ABSTREIFER/19093500
R900345609 PR4-1X/0,63-700WA01M01
R900345624 3WH 6 A5X/SO329
R900345743 M-SR 30 KE02-1X/
R900345744 M-SR 20 KE02-1X/
R900345745 M-SR 10 KE02-1X/
R900345792 DB 20 K2-1X/200XY SO31
R900345936 PR4-1X/0,63-700WG01M01
R900345961 M-SR 30 KE30-1X/
R900346009 4WMR 6 D5X//B08
R900346049 KOLBEN SP 12 L10/EA70-70 /07256008
R900346082 M-SR 15 KE30-1X/
R900346083 M-SR 8 KE05-1X/
R900346230 DR 20-5-4X/200YV
R900346244 DBD. 10 G1X/ ... /12
R900346343 M-SR 10 KE50-1X/V
R900346391 M-SR 25 KE30-1X/
R900346478 PR4-1X/0,40-700WA01V01
R900346552 SCB 32 AZ1X/M
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
R900347261 S 20 A5.0//12
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
R900347547 S 25 A2.0//12
R900347548 DR 10 G5-4X/200YM/12
R900347593 DB 20 G2-4X/200/12 W65
R900347608 DB 20 K2-1X/315XYU
R900347638 DBDS 30 K1X/100 SO60
R900347641 DBDS 6 K1X/25J
R900347681 S 30 A5.0//12
R900347716 LC 25 DB20D2X/
R900347727 4WMM 6 D5X/F SO329
R900347830 4WH 6 D5X/SO71
R900347868 DBDH 6 K1X/315J
R900348007 S 10 A0.0//12
R900348076 W-DBDS 30 K1X/315
R900348110 4WMM 6 UA5X/F
R900348143 M-SR 8 KE15-1X/
R900348176 3WH 6 A5X/O/V
R900348265 GEHAEUSE SP 12 L30/.MM01 /19219501
R900348318 M-SR 20 KE50-1X/
R900348329 M-SR 8 KE30-1X/
R900348351 L-DB 50 F2-3X/16
R900348353 ZDC 25 PT-2X/M
R900348453 M-SR 25 KE15-1X/
R900348479 G 45/12
R900348531 DBETB-1X/230G24K4M
R900348532 DBETB-1X/80G24K4M
R900348632 M-SR 10 KE05-1X/V
R900348666 M-SR 30 KE15-1X/
R900348667 M-SR 20 KE15-1X/V
R900348818 M-SR 15 KE50-1X/
R900348943 M-SR 15 KE02-1X/
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
R900349973 M-SR 30 KE50-1X/
R900350107 MHDBN 16 K0-1X/420XM
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
力士乐进口节流压力补偿器ZDC25P-21/M
