BOSCH REXROTH
0811403112
$2,465.15 USD
- BOSCH REXROTH
- Material:0811403112
- Model:3FREX6B-1X/75L2G24-25N9Z4MM
Quantity in stock: 0
The Bosch Rexroth 3FREX6B-1X/75L2G24-25N9Z4MM (0811403112) is a sophisticated proportional flow control valve designed for precise fluid handling in hydraulic systems. This direct-operated valve falls within the NG6 and NG10 size categories, ensuring compatibility with standard porting patterns as per ISO 4401 for subplate mounting. Its operation is controlled by a proportional solenoid, which allows for fine-tuning of the flow rate, with an impressively low hysteresis of less than 5%, ensuring consistent and accurate control of the hydraulic fluid. This particular model can be adjusted through changes in the solenoid current, enabling users to manage flow rates effectively. The valve's versatility is highlighted by its dual function; it can operate as a 2-way flow control valve when configured with the "NO" (normally open) symbol and as either a 2-way or 3-way flow control valve when using the "NC" (normally closed) symbol. In its 3-way configuration, residual flow is directed via port P, while in a 2-way setup, ports A to B are operational with ports P and T closed. The Bosch Rexroth proportional flow control valves are designed without position control but come equipped with various amplifier electronics options to cater to different system requirements. These valves are integral components for applications requiring precise fluid management and are particularly suitable where system stability and response sensitivity are critical. Their robust design and flexible configuration options make them ideal for use in advanced hydraulic circuits that demand high levels of reliability and performance.
Proportional flow control valves of type 3(2)FREX without position control are offered in sizes 6 and 10. Operation is effected by means of proportional solenoid. The hysteresis is < 5 %. The valve amplifier electronics are available in different designs. The “NO” (normally open) symbol can only be used as 2-way flow control valve (type 2FREX). The “NC” (normally closed” symbol can be used as 3-way or 2-way flow control valve. Due to the valve housing, the residual flow in the 3-way version is guided via port P. For the 2-way version, the following is true: A to B (P and T are closed).
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01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
11 |
12 |
13 |
14 |
15 |
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FRE |
X |
B |
‒ |
1X |
/ |
L |
G24 |
‒ |
25 |
Z4 |
M |
M |
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01 |
3-way |
3 |
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2-way |
2 |
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|
02 |
Proportional flow control valve, without position control |
FRE |
|
03 |
Without inductive position transducer |
X |
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04 |
Size 6 |
6 |
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Size 10 |
10 |
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|
05 |
Without external closing of the pressure compensator |
B |
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06 |
Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) - Size 10 |
1X |
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Nominal flow |
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|
07 |
Size 6 |
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7,5 l/min |
7,5 |
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15 l/min |
15 |
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35 l/min |
35 |
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Size 10 |
||
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60 l/min |
60 |
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70 l/min |
70 |
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Flow characteristic |
||
|
08 |
Linear |
L |
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09 |
Command value presetting + 10 V, Qmin (NO) |
1 |
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Command value presetting + 10 V, Qmax (NC) |
2 |
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Supply voltage of the control electronics |
||
|
10 |
Direct voltage 24 V |
G24 |
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Solenoid type (current) |
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11 |
Solenoid current maximum 2.5 A |
25 |
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12 |
Concealed manual override |
N9 |
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Manual override, screwable with lock nut |
N12 |
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Electrical connection |
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13 |
Connector according to DIN 43650-AM2 |
Z4 |
|
14 |
Without check valve |
M |
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Seal material |
||
|
15 |
NBR seals |
M |
For applications outside these parameters, please consult us!
general
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Type |
3(2)FREX | ||
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Size |
6 | 10 | |
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Component series |
1X | ||
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Installation position |
Any | ||
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Weight |
kg |
2 | 5.8 |
|
Ambient temperature range |
°C |
-20 … +50 | |
hydraulic
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Type |
3(2)FREX | |||
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Size |
6 | 10 | ||
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Maximum operating pressure |
bar |
250 | ||
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Maximum operating pressure |
Port A |
bar |
250 | |
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Port B |
bar |
250 | ||
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Hydraulic fluid temperature range |
°C |
-20 … +80 | ||
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Viscosity range |
mm²/s |
10 … 800 | ||
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Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) |
Class 18/16/13 according to ISO 4406 (c) | |||
|
Hysteresis |
% |
≤ 5 | ||
|
Range of inversion |
% |
≤ 3 | ||
| 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. |
electrical
|
Type |
3(2)FREX | ||
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Maximum solenoid current |
A |
2.5 | |
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Solenoid coil resistance |
Cold value at 20 °C |
Ω |
3 |
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Duty cycle |
% |
100 | |
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Protection class according to DIN EN 60529 |
IP65 (with mating connector mounted and locked) | ||