4WREE 6 W1-32-2X/G24K31/F1V
Rexroth
R900933476
直动式比例换向阀，带电气位置反馈及集成电子装置（OBE）。
控制流向及流量大小。
由带中心螺纹及可拆卸线圈的比例电磁铁驱动。
用于底板安装，油口布置符合ISO 4401。
弹簧对中的控制阀芯。
二位四通及三位四通比例换向阀为板式直动结构，由带中心螺纹、可拆卸线圈的比例电磁铁驱动，电磁铁通过集成电子装置控制。
该阀主要组成如下：
带连接面的阀体（1）
带压缩弹簧（3 和 4）及弹簧座（5 和 6）的控制阀芯（2）
带中心螺纹的电磁铁（7 和 8）
位置传感器（9）
集成电子装置（13）
电气零点调节（12），可通过 Pg7 接口操作
电磁铁（7、8）断电时，位于弹簧座（5、6）之间的压缩弹簧（3、4）使控制阀芯（2）保持中位。
通过控制一个比例电磁铁来直接驱动控制阀芯（2），例如电磁铁“b”（8）
→ 控制阀芯（2）按电气输入信号的比例向左移动。
→ P至A、B至T通过孔口式控制截面接通，具有渐进式。
流量特性。
电磁铁（8）断电
→ 控制阀芯（2）由压缩弹簧（3）推回中位。
断电状态下，控制阀芯（2）由电磁铁的复位弹簧保持在机械中位。对于阀芯机能符号“V”，该位置并不等于液压中位！电气阀控回路闭合后，控制阀芯才定位于液压中位。
不得打开PG接头（11）。禁止机械调整其下方的调节螺母，否则会损坏阀！
该版本功能与三阀位版本基本相同，但二阀位版本仅配电磁铁“a”（7），第二个比例电磁铁的位置装有螺塞（10）。
由于结构原理所限，阀存在固有的内泄漏，且内泄漏可能在使用周期内增加。
不得使回油管路排空；相应安装条件下必须安装预紧阀，预紧压力约2 bar。
01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | ||
4 | WRZ | ‒ | 7X | / | 6E | G24 | * |
01 | 4 main ports | 4 |
02 | Proportional directional valve with electro-hydraulic operation and external electronics | WRZ |
03 | Size 10 | 10 |
Size 16 | 16 | |
Size 25 | 25 | |
Size 32 | 32 | |
Size 52 | 52 | |
04 | Symbols; for the possible version, see "Symbols/Circuit diagrams" | E; E1-; E3-; W6-; W8-; W9-; EA; W6A |
Rated flow NG10 | ||
05 | 25 l/min | 25 |
50 l/min | 50 | |
90 l/min | 85 | |
Rated flow NG16 | ||
05 | 100 l/min | 100 |
125 l/min | 125 | |
150 l/min | 150 | |
180 l/min | 180 | |
Rated flow NG25 | ||
05 | 220 l/min | 220 |
325 l/min | 325 | |
Rated flow NG32 | ||
05 | 360 l/min | 360 |
520 l/min | 520 | |
Rated flow NG52 | ||
05 | 1000 l/min | 1000 |
06 | Component series 70 ... 79 (70 ... 79: unchanged installation and connection dimensions) | 7X |
07 | For subplate mounting | no code |
For flange connection (only NG 52) | F | |
08 | Pilot control valve NG6 | 6E |
09 | Supply voltage 24 V | G24 |
10 | Without manual override | no code |
With concealed manual override | N9 1) | |
11 | Without special type of protection | no code |
Sea water-resistant | J 2) | |
Pilot oil supply and return | ||
12 | External pilot oil supply, external pilot oil return | no code |
Internal pilot oil supply, external pilot oil return | E | |
Pilot oil supply internal, pilot oil return internal | ET | |
External pilot oil supply, internal pilot oil return | T | |
Electrical connection | ||
13 | Without mating connector, with connector according to DIN EN 175301-803, separate order | K43) |
Without mating connector, connector according to DIN EN 175201-804 | K31 3) | |
14 | Without pressure reducing valve | no code |
With pressure reducing valve ZDR 6 DP0-4X/40YM-W80 (fixedly set) | D3 | |
15 | NBR seals | M |
FKM seals | V | |
16 | Further details in the plain text | * |
1) | With version “J” → “N” instead of “N9” | |
2) | For data regarding the seawater-resistant version refer to data sheet 29115-M | |
3) | For version "J" = seawater-resistant only "K31" | |
Type | 4WREE | ||
Size | 6 | 10 | |
Installation position | any, preferably horizontal | ||
Ambient temperature range | °C | -20 … +50 | |
Storage temperature range | °C | -20 … +80 | |
Weight | kg | 2.4 | 6.5 |
MTTFD values according to EN ISO 13849 1) | y | 150 | |
| 1) | With control spool types E, E1, EA, W, W1, WA; in longitudinal control spool direction, there is sufficient positive overlap without shock/vibration load; observe the installation orientation with regard to the main direction of acceleration. |
Size | 6 | 10 | ||
Maximum operating pressure | bar | 315 | ||
Maximum operating pressure | Port P | bar | 315 | |
Port T | bar | 210 | ||
Anschluss A | bar | 315 | ||
Port B | bar | 315 | ||
Maximum flow | l/min | 80 | 180 | |
Nominal flow | l/min | 4 8 16 32 | 25 50 75 | |
Hydraulic fluid | see table below | |||
Hydraulic fluid temperature range | °C | -20 … +80 | ||
preferably | °C | +40 … +50 | ||
Viscosity range | mm²/s | 20 … 380 | ||
preferably | mm²/s | 30 … 46 | ||
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) | |||
Hysteresis | % | ≤ 0.1 | ||
Range of inversion | % | ≤ 0.05 | ||
Response sensitivity | % | ≤ 0.05 | ||
Zero shift upon change of | Hydraulic fluid temperature | %/10 K | ≤ 0.15 | |
Operating pressure | %/100 bar | ≤ 0.1 | ||
| 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 and related hydrocarbons | HL, HLP | NBR / FKM | DIN 51524 |
Flame-resistant - containing water | HFC (Fuchs HYDROTHERM 46M, Petrofer Ultra Safe 620) | NBR | ISO 12922 |
Important information on hydraulic fluids: For more information and data on the use of other hydraulic fluids please contact us. There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The flash point of the process and operating medium used must be 40 K over the maximum solenoid surface temperature. Flame-resistant - containing water: | |||
Size | 6 | 10 | ||
Voltage type | Direct voltage | |||
Maximum current consumption | of the amplifier | A | 2 | |
of the amplifier (impulse current) | A | 3 | ||
Solenoid coil resistance | Cold value at 20 °C | Ω | 2.65 | 4.55 |
Maximum hot value | Ω | 4.05 | 6.82 | |
Actuated time | % | 100 | ||
Maximum coil temperature 1) | °C | 150 | ||
Protection class according to DIN EN 60529 | IP65 (If a suitable and a correctly mounted mating connector are used.) | |||
Power supply | V | 24 | ||
Supply voltage range | V | 19,4 … 35 | ||
Earthing (GND) | V | 0 | ||
Command value input | "A1" | V | ± 10 | |
Command value input range | "F1" | mA | 4 … 20 | |
Actual value output | "A1" | V | ± 10 | |
Actual value output range | "F1" | mA | 4 … 20 | |
| 1) | Due to the surface temperatures occurring at solenoid coils, the European standards ISO 13732-1 and ISO 4413 need to be adhered to. |
NG6
NG10
NG6
NG6
NG6
NG6
NG10
NG10
NG10
NG6
NG6
NG10
NG10
NG6
NG10
