BOSCH REXROTH
R900619739
Valve Assemblies
Module program: IH 20 -equiped
BOSCH REXROTH
MATERIAL: R900619739
SUMMARY: Module program: IH 20 -equiped
Quantity in stock: 0
General information
Function
The type IH20 control system (complete assembly) can be realized individually from different modules and additional vertical stackings. Functionality will differ according to the selected modules, valves etc.
This data sheet describes the properties of the individual modules with frame sizes A and B of the premium and standard programs which are primarily designed for direct operated or for internally pilot-operated directional valves.
Other functions (modules) in these frame sizes and modules for larger nominal volume flows (frame sizes C and D) are available on request.
The maximum volume flows possible for the individual frame sizes depend on the admissible flow velocities of the relevant application and the existing thread connections and/or connection flanges at the IH 20 modules. Actuator ports are usually located on the back.
System set-up
The type IH20 control system (complete assembly) usually consists of the following elements:
▶ Inlet segment
▶ Intermediate segment(s)
▶ Sandwich plates, valves etc.
|
1 |
Inlet segment left |
|
2 |
2-way cartridge valves (logic) |
|
3 |
Accumulator segment |
|
4 |
Check function in P |
|
5 |
Valve segment |
|
6 |
Pump inlet segment |
|
7 |
Inlet segment right |
|
8 |
Threaded bolt |
general
|
Ambient temperature range |
NBR seals |
°C |
-30 … +50 |
|
FKM seals |
°C |
-20 … +50 | |
|
Installation position 1) |
any, preferably horizontal | ||
|
Surface protection |
Galvanic coating DIN 50979 - Fe//Zn8//Cn//T0 | ||
|
Material |
EN-JS1030/EN-GJS-400-15 (0.7040/GG-40) | ||
| 1) | Observe the valve details |
hydraulic
|
Maximum operating pressure |
Ports A, B, P, X |
bar |
315 | |
|
Ports T, Y, L |
bar |
100 | ||
|
Nominal flow |
Frame size |
A | B | |
|
|
l/min |
50 | 200 | |
|
Hydraulic fluid temperature range |
NBR seals |
°C |
-30 … +80 | |
|
FKM seals |
°C |
-15 … +80 | ||
|
Viscosity range 1) |
mm²/s |
2.8 … 500 | ||
|
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1) 2) |
Class 20/18/15 | |||
| 1) | Observe the valve details |
| 2) | 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 |
Data sheet |
|
Mineral oils |
HL, HLP |
FKM, NBR |
DIN 51524 |
90220 |
| Important information on hydraulic fluids: | |
| ▶ For more information and data on the use of other hydraulic fluids, please refer to data sheet 90220 or contact us! | |
| ▶ There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! | |
| ▶ The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature. |
For applications outside these parameters, please consult us!