M-3SEW6U3X/420MG24N9K4
Rexroth
R900566283
二位二通、二位三通或二位四通型式。
油口布置符合DIN 24340 A型。
油口布置符合ISO 4401-03-02-0-05。
气隙式直流电磁铁，线圈可拆卸。
电磁线圈可旋转90°。
更换线圈无需打开耐压密封腔。
采用独立电气连接。
可选辅助操纵装置。
感应式位置开关及接近传感器，非接触检测。
概述
SEW型换向阀是电磁驱动的座阀换向阀，用于控制流动的启动、停止及方向。
该阀主要由阀体（1）、电磁铁（2）、淬硬阀系统（3）以及作为关闭元件的球或阀芯（4）组成。
基本原理
初始位置时，球体/阀芯（4）由弹簧（9）压向阀座；切换后则由电磁铁（2）压向阀座。电磁铁（2）的力经弯角杠杆（6）和钢球（7）传至两侧均密封的操作推杆（8）。两个密封件之间的腔体与 P 口连通，因此，阀系统（3）相对于操作力（电磁铁力或复位弹簧力）实现压力平衡。由此，阀可用于最高 630 bar 的压力。
注意事项！
二位三通座阀式换向阀采用“阀芯负遮盖”。因此，T 口必须始终接通。也就是说，在切换过程中，从一个阀座开始开启至另一个阀座完全关闭，P–A–T 各油口会相互连通。不过，这一过程持续时间极短，在几乎所有应用中都不会产生明显影响。
手动应急操作（10）可在电磁铁未通电时切换阀。
必须确保不超过所规定的最大流量！必要时，应安装用于限制流量的节流插装件，参见功能说明。
M-3SEW 6 U …型。
M-2SEW 6 N …型。
在二位三通座阀式换向阀下方安装Plus-1叠加板，可实现二位四通座阀式换向阀功能。
Plus-1 叠加板的功能
初始位置：
主阀未动作时，弹簧（9）使球（4.1）压在阀座（11）上，P口封闭，A与T相通。另有控制管路从A连接至控制阀芯（12）的大端面，使其向油箱卸压。P口压力将球（13）压向阀座（14），因此P与B相通，A与T相通。
过渡位置：
主阀动作时，阀芯（4.2）克服弹簧（9）移向阀座（15）并压紧。过程中T口封闭，P、A、B短暂互通。
切换位置：
P 与 A 连通。泵压经 A 口作用于控制阀芯（12）的大面积上，将钢球（13）压在阀座（16）上，从而使 B 与 T 连通、P 与 A 连通。Plus-1 叠加板中的钢球（13）具有“正遮盖”。
注意事项！
如果差动缸的环形面积一侧未连接至 A 口，切换时可能因压力放大而在 B 口产生压力峰值。该峰值可能超过允许的最大工作压力。
M-4SEW 6 Y …型。
若运行条件导致切换过程中可能出现超过阀性能极限的流量，则必须使用节流插芯。
示例：
蓄能器运行，
作为内部先导取油的先导控制阀使用。
二位二通和二位三通座阀式换向阀
节流插芯装入座阀的P口。
。
二位四通座阀式换向阀（见功能说明）
节流插芯装入Plus-1板的P口。
单向阀插芯允许油液由P自由流向A，并以无泄漏方式封闭由A至P的流动。
二位二通和二位三通座阀式换向阀（见功能说明）
单向阀插芯装入座阀的P口。
二位四通座阀式换向阀（见功能说明）
单向阀插芯装入Plus-1板的P口。
01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | ||
M | – | SEW | 6 | 3X | / | M | K4 | / | * |
01 | Mineral oil | M | |||
02 | 2 main ports | 2 | |||
3 main ports | 3 | ||||
4 main ports | 4 | ||||
03 | Seat valve, direct operated | SEW | |||
04 | Size 6 | 6 | |||
05 | Symbols | Main ports | ● = available | ||
2 | 3 | 4 | |||
| | ● | – | – | P | |
| | ● | – | – | N | |
| | – | ● | – | U | |
| | – | ● | – | C | |
| | – | – | ● | D | |
| | – | – | ● | Y | |
06 | Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) | 3X | |||
07 | Operating pressure 420 bar | 420 bar | |||
Operating pressure 630 bar | 630 bar | ||||
08 | High-power solenoid (air-gap) with detachable coil | M | |||
09 | Nominal voltage 96 V at DC solenoid with operation with AC voltage mains (AC voltage mains 110 V/120 V - 50/60 Hz with an admissible voltage tolerance of +/- 10 %) | G96 | |||
Nominal voltage 110 V at DC solenoid with operation with AC voltage mains (AC voltage mains 110 V/120 V – 50/60 Hz with an admissible voltage tolerance of +/-10 %) | G110 | ||||
Nominal voltage 205 V at DC solenoid with operation with AC voltage mains (AC voltage mains 230 V - 50/60 Hz with an admissible voltage tolerance of +/- 10 %) | G205 | ||||
Connection to the AC voltage mains via control with rectifier. Further ordering codes for other voltages are provided in the Technical data | |||||
10 | With concealed manual override (standard) | N9 | |||
Without manual override | no code | ||||
Electrical connection | |||||
11 | Individual connection | ||||
Without mating connector; connector DIN EN 175301-803 | K41) | ||||
Spool position monitoring | |||||
12 | Without position switch | no code | |||
Inductive position switch type QM | |||||
Monitored spool position "a" | QMAG24 2) | ||||
Monitored spool position "b" | QMBG25 2) | ||||
13 | Without check valve insert, without throttle insert | no code | |||
With check valve insert | P | ||||
Throttle Ø 1.2 mm | B12 | ||||
Throttle Ø 1.5 mm | B15 | ||||
Throttle Ø 1.8 mm | B18 | ||||
Throttle Ø 2.0 mm | B20 | ||||
Throttle Ø 2.2 mm | B22 | ||||
Other orifices on request | |||||
Seal material | |||||
14 | NBR seals | no code | |||
FKM seals | V | ||||
Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) | |||||
15 | Without locating hole | no code | |||
With locating hole and locking pin ISO 8752-3x8-St | /62 | ||||
16 | Further details in the plain text | * | |||
1) Mating connectors, separate order.
2) Version “420” only
Notice!
For other types of actuation (e.g. pneumatic, hydraulic, rotary knob, rotary knob with lock, stylus, touching lever, roller actuation), see data sheet 22340 or contact us!
Size | 6 | ||
Weight | 2/2 directional seat valve | kg | 1.5 |
3/2 directional seat valve | kg | 1.5 | |
4/2 directional seat valve | kg | 2.3 | |
Installation position | any | ||
Ambient temperature range | NBR seals | °C | -30 … +50 |
FKM seals | °C | -20 … +50 | |
Size | 6 | ||
Maximum operating pressure | Port P | bar | 420 630 |
Port A | bar | 420 630 | |
Port B | bar | 420 630 | |
Maximum flow | l/min | 25 | |
Hydraulic fluid | see table | ||
Hydraulic fluid temperature range | NBR seals | °C | -30 … +80 |
FKM seals | °C | -20 … +80 | |
Viscosity range | mm²/s | 2.8 … 500 | |
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) | Class 20/18/15 according to ISO 4406 (c) | ||
| 1) | The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter. |
Hydraulic fluid | Classification | Suitable sealing materials | Standards | |
Mineral oils | HL, HLP, HLPD, HVLP, HVLPD | NBR, FKM | DIN 51524 | |
Bio-degradable | Insoluble in water | HETG | NBR, FKM | VDMA 24568 |
HEES | FKM | |||
Soluble in water | HEPG | FKM | VDMA 24568 | |
Containing water | Water-free | HFDU, HFDR | FKM | ISO 12922 |
Containing water | HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) | NBR, HNBR | ISO 12922 | |
Important information on hydraulic fluids!
Flame-resistant – containing water:
| ||||
Voltage type | Direct voltage | AC voltage | ||
Available voltages | V | 12 / 24 / 42 / 96 / 110 / 205 / 220 1) | 110 / 120 / 230 | |
Voltage tolerance (nominal voltage) | % | ± 10 | ||
Power consumption | W | 30 | ||
Duty cycle | % | 100 | ||
Switching time according to ISO 6403 | ON (without rectifier) | ms | 25 … 40 | |
ON (with rectifier) | ms | 30 … 55 | ||
OFF (without rectifier) | ms | 10 … 15 | ||
OFF (with rectifier) | ms | 35 … 55 | ||
Maximum switching frequency | Operating pressure ≤350 bar | 1/h | 15000 | |
Operating pressure >350 bar | 1/h | 3600 | ||
Protection class according to EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | |||
Maximum surface temperature of the coil 2) | °C | 120 | ||
| 1) | Special voltages available upon request |
| 2) | Surface temperature > 50 °C, provide contact protection. |
电气连接时，应按规定连接保护接地导线（PE，接地）。
Connection voltage (DC voltage) | V | 24 | ||
Voltage tolerance (connection voltage) | +30 %/-15 % | |||
Admissible residual ripple | % | ≤ 10 | ||
Max. load capacity | mA | 400 | ||
Switching outputs | PNP transistor outputs, load between switching outputs and GND | |||
Pinout | 1 | V | 24 | |
2, 4 | Switching output | mA | 400 | |
3 | Earthing (GND) | V | 0 | |
电气连接通过带 M12 x 1 连接螺纹的 4 极配套连接器实现，连接器需单独订购。
| High-performance version | Reduced power consumption “SO407” | |||
M12x1 plug-in connections 1) | K72L | |||
Available voltages 2) | V | 24 | ||
Limited switch-off voltage peak | V | -44 … -55 | ||
Voltage tolerance (nominal voltage) | % | ± 10 | ||
Power consumption | W | 30 | 8 | |
Duty cycle | % | 100 | ||
Switching time according to ISO 6403 | ON (without rectifier) | ms | 25 … 40 | - |
ON (with rectifier) | ms | 30 … 55 | - | |
ON (spool symbol “C”) | ms | - | 50 | |
ON (spool symbol “U”) | ms | - | 55 | |
OFF (without rectifier) | ms | 10 … 15 | - | |
OFF (with rectifier) | ms | 35 … 55 | - | |
OFF (spool symbol “C”) | ms | - | 50 | |
OFF (spool symbol “U”) | ms | - | 15 | |
Maximum switching frequency | Standard | 1/h | 15000 | 7200 |
Protection class according to EN 60529 3) | IP40 | |||
Protection class according to DIN EN 61140 | III | |||
Maximum coil temperature | °C | 150 4) | 110 5) | |
| 1) | Mating connectors according to IEC 60947-5-2, separate order, see data sheet 08006 |
| 2) | Connection to functional low voltage with secure separation only = PELV/SELV |
| 3) | Only with the use of the mating connectors indicated by us and with correct installation. |
| 4) | Due to the surface temperatures of the solenoid coils, the standards ISO 13732-1 and EN 982 need to be adhered to! |
| 5) | Due to the surface temperatures occurring at the solenoid coils, the European standards ISO 13732-1 and EN 982 need to be adhered to. |
Dimensions in mm
Dimensions in mm
1 | Solenoid “a” |
2 | Concealed manual override “N9” |
3 | Mating connector without circuitry (separate order) |
4 | Mating connector without circuitry (separate order) |
5 | Space required to remove the coil |
6 | Space required to remove the mating connector |
8 | Name plate |
9 | Mounting nut, tightening torque MA = 4 Nm |
10 |
|
11 | Identical seal rings for ports A, B, and T; seal ring for port P |
13 | Porting pattern according to ISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, included in the scope of delivery) |
14 | Valve mounting screws |
Dimensions in mm
Dimensions in mm
1 | Solenoid “a” |
2 | Concealed manual override “N9” |
3 | Mating connector without circuitry (separate order) |
4 | Mating connector without circuitry (separate order) |
5 | Space required to remove the coil |
6 | Space required to remove the mating connector |
8 | Name plate |
9 | Mounting nut, tightening torque MA = 4 Nm |
10 |
|
11 | Identical seal rings for ports A, B, and T; seal ring for port P |
12 | Porting pattern according to DIN 24340, form A |
14 | Valve mounting screws |
Dimensions in mm
Dimensions in mm
1 | Solenoid “a” |
2 | Concealed manual override “N9” |
3 | Mating connector without circuitry (separate order) |
4 | Mating connector with circuitry (separate order, see page data separate order, see data sheet 08006) |
5 | Space required to remove the coil |
6 | Space required to remove the mating connector |
7 | Plus-1 plate |
8 | Name plate |
9 | Mounting nut, tightening torque MA = 4 Nm |
11 | Identical seal rings for ports A, B, and T; seal ring for port P |
12 | Porting pattern according to DIN 24340, form A |
13 | Porting pattern according to ISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, included in the scope of delivery) |
14 | Valve mounting screws |
Valve mounting screws (separate order)
2/2 and 3/2 directional seat valve
Version “420”:
4 hexagon socket head cap screws metric
ISO 4762 - M5 x 45 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
tightening torque MA = 7 Nm ± 10 %,
material no. R913000140
or
4 hexagon socket head cap screws
ISO 4762 - M5 x 45 - 10.9 1)
(friction coefficient μges = 0.12 to 0.17);
tightening torque MA = 8,1 Nm ± 10 %
4 hexagon socket head cap screws UNC
10-24 UNC x 1 3/4” ASTM-574 1)
(friction coefficient μtotal = 0.19 to 0.24 according to ASTM-574);
tightening torque MA = 11 Nm ± 15 %,
(friction coefficient μtotal = 0.12 to 0.17 according to ISO 4762);
tightening torque MA = 8 Nm ± 10 %,
material no. R978802649
version “630”:
4 hexagon socket head cap screws metric
ISO 4762 - M6 x 45 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
tightening torque MA = 12,5 Nm ± 10 %,
material no. metric R913000258
or
4 hexagon socket head cap screws
ISO 4762 - M6 x 45 - 10.9 1)
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 15,5 Nm ± 10 %
4 hexagon socket head cap screws UNC
1/4-20 UNC x 1 3/4” ASTM-574 1)
(friction coefficient μtotal = 0.19 to 0.24 according to ASTM-574);
tightening torque MA = 20 Nm ± 15 %,
(friction coefficient μtotal = 0.12 to 0.17 according to ISO 4762);
tightening torque MA = 14 Nm ± 10 %,
material no. R978800711
4/2 directional seat valve
version “420”:
4 hexagon socket head cap screws metric
ISO 4762 - M5 x 90 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
tightening torque MA = 7 Nm ± 10 %,
material no. R913000222
oder
4 hexagon socket head cap screws
ISO 4762 - M5 x 90 - 10.9 1)
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 8,1 Nm ± 10 %
4 hexagon socket head cap screws UNC
10-24 UNC x 3 1/2” 1)
(friction coefficient μtotal = 0.19 to 0.24 according to ASTM-574);
tightening torque MA = 11 Nmv± 15 %,
(friction coefficient μtotal = 0.12 to 0.17 according to ISO 4762);
tightening torque MA = 8 Nm ± 10 %,
material no. R978800696
version “630”:
4 hexagon socket head cap screws metric
ISO 4762 - M6 x 90 - 10.9-flZn-240h-L
(friction coefficient μtotal = 0.09 to 0.14);
tightening torque MA = 12,5 Nm ± 10 %,
material no. R913000259
or
4 hexagon socket head cap screws
ISO 4762 - M6 x 90 - 10.9 1)
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 15,5 Nm ± 10 %
4 hexagon socket head cap screws UNC
1/4-20 UNC x 3 1/2” 1)
(friction coefficient μtotal = 0.19 to 0.24);
tightening torque MA = 20 Nm ± 15 %,
(friction coefficient μtotal = 0.12 to 0.17);
tightening torque MA = 14 Nm ± 10 %,
material no. R978800717
1) Not included in the Rexroth delivery range
Size | H |
mm | |
| 6 | 23 |
| 10 | 32.5 |
The dimensions are nominal dimensions which are subject to tolerances.
Dimensions in mm
Dimensions in mm
Dimensions in mm
Dimensions in mm
| 1) | For dimensions, see valve dimensions |
