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手動換向閥是手動杠桿操作的方向控制閥門，在液壓系統中起換向（改變液流方向）和開關（接通或切斷液流）作用。閥芯在閥體內的定位方式有彈簧鋼球定位和彈簧自動復位兩種。根據閥芯在閥體內停留的工作位置可分二位和三位。三位四通換向閥當閥芯處于左位或右位時液流方向分別為交叉相通（P口→B口，A口→T口）或直通（P口→A口，B口→T口），閥芯中位時有各種通油形式（即滑閥機能）。二位四通換向閥只有左位或右位，中間過渡位置也可以有各種通油形式。本型號為改進型換向閥，具有體積小，流通能力更大，可靠性好等優點，廣泛應用于工程機械，煤礦機械，化工機械，輕工機械，機床機械出口配套。
型號說明
具體參數
| 型號 | 額定流量 L/min | 額定壓力 Mpa | 溫度范圍 | 重量 |
| 34S*-H10B | 32 | 31.5 | —20~80 | 4.5 |
| 34S*-H20B | 125 | 12 | ||
| 34S*-H32B | 315 | 22.5 |
| 型號 | A | A1 | A2 | A3 | A4 | A5 | A6 | A7 | B | B1 | B2 | B3 | B4 |
| 34S*-H20B-* | 314 | 155 | 130.2 | 100.8 | 77 | 53.2 | 29.4 | 5.6 | 118 | 92.1 | 74.6 | 46 | 17.5 |
| 34S*-H32B-* | 457 | 228.5 | 190.5 | 147.6 | 114.3 | 76.2 | 41.3 | 0 | 198 | 158.8 | 123.8 | 79.4 | 35 |
| 型號 | E | F | G | H | H1 | H2 | S | D | D1 | d | d1 | I | C | M |
| 34S*-H20B-* | 50 | 64.4 | 40 | 280 | 86 | 40 | 85 | Φ20 | Φ32 | Φ6 | Φ20 | 18 | 53.2 | M12*60 |
| 34S*-H32B-* | 74 | 92 | 55 | 321 | 120 | 54 | 94.5 | Φ30 | Φ40 | Φ8 | Φ20 | 31 | 82.5 | M20*80 |
DBDS10K-1X/400 ,DBDS6K1/315 ,DBDS10K1X/400 ,DBDS10G-1X/200,DBDS20K1X/200 ,DBDS20K1X/50
DBDS10K1X/315 ,DBDS10K18/25 ,DBDS6K-1X/100 ,DBDS10P1X/400 ,DBDS6K1X/315,DBDS10K1X/315
DBDS10P1X/200,DBDS6K121X/100 ,DBDS10-P-1X/200,DBDS10K18/25 ,DBDS10-P-1X/200,DBDS10K18/25
DBDS20P10 ,DBDS10P1X/200 ,DBDS10G12/200,DBDS20K1X/50,DBDS6K1/315,DBDS6P1X/ 315
DBDS20P1X/315,DBDS10P1X/315,DBDS6P1X/315 ,DBDH10P-1X/200 ,DBDS10G-1X/200V,DBDS10G-1X/25
DBDS10K-1X/200 ,DBDS10K-1X/315 ,DBDS10K-1X/315,DBDS20G-1X/315V ,DBDS20K-1X/200,DBDS20K-1X/315
DBDS20P-10/31.5,DBDS10-P1X/315 ,DBDS10K1X/400 ,DBDS10K1X/400 ,DBDS10G-1X/200,DBDH10G10/200
DBDS-20K-1X/315,DBDS10K1-1X/315,DBDS10K1-1X/100,DBDS6K-1X/100 ,DBDS6K-1X/100 ,DBDS10K1X/315
DBDS10K1X/315 ,DBDS6K-1X/100 ,DBDS6K-1X/100 ,DBDS20P1X/250 ,DBDS10K1X/315 ,DBDS10K18/25
DBDS6K1X/100 ,DBDS6K-1X/100,DBDS6G10/400 ,DBDS10P1X/200 ,DBDS6K121X/100,DBDS10G-1X/200
DBDS10-P-1X/200,DBDS10K18/25 ,DN10DBDS-10K10/315,DBDS6K1X/315 ,DBDS10P1X/200 ,DBDS6K121X/100
DBDS10-P-1X/200,DBDS10K18/25,DBDS6P1X/ 315 ,DBDS10-P-1X/200 ,DBDS10K18/25 ,DBDS10P1X/200
DBDS6K121X/100,DBDS10-P-1X/200,DBDS10K18/25 ,DBDS10-P-1X/200 ,DBDS10K18/25 ,DN10DBDS-10K10/315
DBDS6K1X/315 ,DBDH10P/400 ,DBDH6P1X/315,DBDS30G1X/315 ,DBDS10P1X/200,DBDS6G1X/315
DBDS10K1X/315,DBDS20K1X/315 ,DBDS20P1X/200,DBDS20P10 ,DBDS 30 P1X/200V,DBDS 30 K1X/315V
DBDS 30 K1X/315,DBDS 30 K1X/25,DBDS 25 G1X/315,DBDA 20 P1X/25,DBDA 20 G1X/25,DBDA 20 K1X/100
DBDA 20 K1X/25V,DBDH 20 K1X/50,DBDA 15 G1X/25,DBDA 10 P1X/ ,DBDA 10 G1X/630V,DBDA 10 G1X/25V
DBDA 10 K1X/400,DBDH 10 P1X/50V,DBDH 10 G1X/315V,DBDS 10 P1X/25V,DBDS 10 K1X/315V,DBDA 6 P1X/25
DBDA 6 G1X/315V,DBDS 6 P1X/200V,DBDS 6 G1X/315,DBDH 25 G1X/50,DBDS 20 P1X/315,DBDS 20 P1X/100
DBDS 20 G1X/400V,DBDS 20 G1X/315V,DBDS 20 K1X/25,DBDH 15 G1X/100V,DBDH 10 P1X/315,DBDH 6 P1X/50V
DBDH 6 K1X/400,DBDH 6 K1X/315,DBDS 6 P1X/100,DBDS 20 G1X/100V,DBDH 10 K1X/50,DBDS 6 P1X/50V
DBDS 6 K1X/200,DBDS 10 P1X/50,DBDS 10 G1X/315V,DBDA 6 G1X/400V DBDS10K-1X/400
DBDS6K1/315 ,DBDS10K1X/400 ,DBDS10G-1X/200,DBDS20K1X/200 ,DBDS20K1X/50,DBDS10K1X/315
DBDS10K18/25 ,DBDS6K-1X/100 ,DBDS10P1X/400,DBDS6K1X/315,DBDS10K1X/315,DBDS10P1X/200,DBDS6K121X/100
DBDS10-P-1X/200,DBDS10K18/25 ,DBDS10-P-1X/200,DBDS10K18/25,DBDS20P10 ,DBDS10P1X/200
DBDS10G12/200,DBDS20K1X/50,DBDS6K1/315,DBDS6P1X/ 315,DBDS20P1X/315,DBDS10P1X/315
DBDS6P1X/315 ,DBDH10P-1X/200 ,DBDS10G-1X/200V,DBDS10G-1X/25,DBDS10K-1X/200 ,DBDS10K-1X/315
DBDS10K-1X/315,DBDS20G-1X/315V ,DBDS20K-1X/200,DBDS20K-1X/315 ,DBDS20P-10/31.5,DBDS10-P1X/315
DBDS10K1X/400 ,DBDS10K1X/400 ,DBDS10G-1X/200,DBDH10G10/200 ,DBDS-20K-1X/315,DBDS10K1-1X/315
DBDS10K1-1X/100,,DBDS6K-1X/100 ,DBDS6K-1X/100 ,DBDS10K1X/315,DBDS10K1X/315 ,DBDS6K-1X/100
DBDS6K-1X/100 ,DBDS20P1X/250 ,DBDS10K1X/315 ,DBDS10K18/25 ,DBDS6K1X/100 ,DBDS6K-1X/100 ,DBDS6G10/400 ,DBDS10P1X/200 ,DBDS6K121X/100,,DBDS10G-1X/200 ,DBDS10-P-1X/200 ,DBDS10K18/25 ,DN10DBDS-10K10/315,DBDS6K1X/315 ,DBDS10P1X/200 ,DBDS6K121X/100 ,DBDS10-P-1X/200,DBDS10K18/25 ,DBDS6P1X/ 315 ,DBDS10-P-1X/200 ,DBDS10K18/25 ,DBDS10P1X/200 ,DBDS6K121X/100,,DBDS10-P-1X/200 ,DBDS10K18/25 ,DBDS10-P-1X/200 ,DBDS10K18/25 ,DN10DBDS-10K10/315 ,DBDS6K1X/315 ,DBDH10P/400 ,DBDH6P1X/315,DBDS30G1X/315
DBDS10P1X/200,DBDS6G1X/315 ,DBDS10K1X/315,DBDS20K1X/315 ,DBDS20P1X/200,DBDS20P10 ,DBDS 30 P1X/200V,DBDS 30 K1X/315V,DBDS 30 K1X/315,DBDS 30 K1X/25,DBDS 25 G1X/315,DBDA 20 P1X/25
DBDA 20 G1X/25,DBDA 20 K1X/100,DBDA 20 K1X/25V,DBDH 20 K1X/50,DBDA 15 G1X/25,DBDA 10 P1X/
DBDA 10 G1X/630V,DBDA 10 G1X/25V,DBDA 10 K1X/400,DBDH 10 P1X/50V,DBDH 10 G1X/315V,DBDS 10 P1X/25V
DBDS 10 K1X/315V,DBDA 6 P1X/25,DBDA 6 G1X/315V,DBDS 6 P1X/200V,DBDS 6 G1X/315,DBDH 25 G1X/50
DBDS 20 P1X/315,DBDS 20 P1X/100,DBDS 20 G1X/400V,DBDS 20 G1X/315V,DBDS 20 K1X/25,DBDH 15 G1X/100V
DBDH 10 P1X/315,DBDH 6 P1X/50V,DBDH 6 K1X/400,DBDH 6 K1X/315,DBDS 6 P1X/100,DBDS 20 G1X/100V
DBDH 10 K1X/50,DBDS 6 P1X/50V,DBDS 6 K1X/200,DBDS 10 P1X/50,DBDS 10 G1X/315V,DBDA 6 G1X/400V
DBDH 6 G1X/315V,DBDS 6 P1X/315V,DBDS 6 P1X/200,DBDS 30 G1X/200V,DBDS 30 G1X/100,DBDH 25 G1X/100V
DBDS 25 G1X/315V,DBDS 25 G1X/315V,DBDA 20 G1X/50V,DBDA 20 K1X/50V,DBDS 20 G1X/400,DBDS 20 K1X/50
DBDS 15 G1X/400,DBDA 10 P1X/25V,DBDH 10 P1X/50,DBDH 10 G1X/400,DBDS 10 P1X/630V,DBDS 10 G1X/25V
DBDS 10 K1X/25,DBDA 8 G1X/25V,DBDH 8 G1X/400,DBDH 6 P1X/100V,DBDS 6 P1X/50,DBDS 6 K1X/50
DBDH 30 G1X/25,DBDH 30 K1X/25,DBDS 30 G1X/50,DBDS 30 K1X/200,DBDA 20 P1X/100,DBDH 20 P1X/25
DBDS 20 P1X/315,DBDS 20 P1X/50,DBDS 20 K1X/50V,溢流閥DBDS10K-1X/200 DBDS6K-1X/100
DBDS6K-1X/100,DBDS20D1X/315 ,DBDS20K1X/200 ,DB10-5X/100 ,B20-2-5X/315,DBW20B2N-52/100-6EG110N9K4 ,DBW30B2N-52/100-6AG-110N9K4,DBDS 20K1X/400 ,DB20-2-5X/315 DB30-2-5X/350
DBDS 30P1X/200 ,DB30G2- ,DB30-2-5X/350 DBDS20K1X/200,ZDB 10 VB2-4X/200V
DBDS20K1X/200 ,DB30-2-5X/100U DB10-2-5X/100U,,電磁溢流閥DBW30-B2-5X/350-6EG24-,DBW20A2-5X/200EG24N9K4 ,DBW20A2-5X/200EG24N9K4+Z5L ,DBW30R2-5X/1006AG110NK4 ,DBW30B2-5X/1006AG110NK4 ,DBW20B2-5X/1006AG110NK4
DBW10B2-5X/1006AG110NK4 , ZDB6VP2-4X/100V Z2DB6VC2-4X/100V ,
ZDB10VA2-4X/100V ZDB10VB2-4X/100V ,ZDB10VB2-4X/100V ,ZDB6VB2-4X/100V ,ZDB10VA2-4X/100V ZDR10DA2-5X/75Y, 減壓閥DR6DP2-5X/75YM DR-10-5-5X/100YM,DR-10-5-5X/100YM
ZDR 6 DPO-45/40YM W80 ,ZDR10DB2-5X/210YM ,DR10-5-3X/200YM ,DR20-5-3X/200Y DR20-5-3X/200YM
DR20-5-3X/200YM ,DR20-5-5X/200Y DR20-5-5X/200YM ,DR20-5-5X/200YM ,ZDR10DB2-5X/75YM ZDR10DP2-5X/75YM ,ZDR10DP2-5X/75YM,DR30-5-5X/200YM,DR3U20D5-5X/150Y6EG24N9K4+Z5L
單向減壓閥DR30-5-5X/100Y ,疊加式減壓閥ZDRK10VP5-1X/100YMV ,ZDR6DB2-4X/75YM ,ZDR6DP2-4X/75YM ZDR6DA2-4X/150YM ,ZDR6DA2-4X/150YM,ZDR6D-4X/25YM ,ZDR10DB2-5X/75YM ZDR10DP2-5X/150YM
ZDR10DP2-5X/150YM ,ZDR10DP2-5X/75YM ,ZDR6DB2-4X/150YM ZDR6DP2-4X/150YM
ZDR6DP2-4X/150YM ,ZDR6DP2-4X/75YM ,Z2DB6VC2-4X/100V ZDB10VB2-4X/100V
ZDB10VB2-4X/100V ,ZDB6VB2-4X/100V ZDR6DB2-5X/75YM ,ZDR6DB2-5X/75YM ,ZDR10DA2-5X/150Y ZDR6DA2-4X/150Y,ZDR6DA2-4X/150Y ,ZDR6DP2-5X/150YMSV30PA1-4X/
ZDR10VB5-3X/100Y,板式減壓閥DR-JO-5-5X/50YM ,
