BOSCH REXROTH
R900905886
- BOSCH REXROTH
- Material:R900905886
- Model:2FRM6K2-1X/6QRV
Due to extremely high demand, please call 877-366-7226 for availability
The Bosch Rexroth 2FRM 6 K2-1X/6QRV (R900905886) is a screw-in cartridge valve designed for precise flow regulation within hydraulic systems. This way flow control valve is pressure compensated with a reverse flow check, ensuring consistent performance and stability in fluid handling applications. It boasts a maximum operating pressure of 315 bar (4569 psi) and can handle a maximum flow rate of 6 liters per minute (1.59 gpm), making it suitable for a variety of demanding environments. This particular model features an integrated grub screw with an internal hexagon for adjustment, providing users with precise control over the hydraulic flow rates. The valve's cavity is designated as Mx, and it employs FKM sealing material known for its chemical resistance and high-temperature tolerance. Its normal position is 'normally open', which means that the valve allows free flow until actuated to change its state. The 2FRM 6 K2-1X/6QRV valve operates as a pilot-operated poppet spool type, ensuring reliable operation even under varying operational conditions. It fits into the product family classification of "Flow regulator – 3 ways, pressure compensated" and has been designed to work efficiently with hydraulic fluids such as HL, HLP, HEES, and HEPG. In terms of construction and ease of installation, this Bosch Rexroth model is compact with a weight of just 0.4 kg, facilitating straightforward integration into hydraulic circuits. The included check valve allows for free return flow from channel B to channel A without additional external components. Overall, the Bosch Rexroth 2FRM 6 K2-1X/6QRV valve represents a reliable component for those needing accurate flow control in their hydraulic systems while also benefiting from its integrated check valve feature for simplified system design and reduced potential points of failure.
2-way flow control valve
Unpacked Weight: 0.2 kg
The valve type 2FRM.K2 is a 2-way flow control valve for block design installation. It is used for pressure and temperature-independent flow stabilization.
The valve basically consists of housing (1), adjustment type (2), throttling point (3), throttle bolt (4), pressure compensator (5) and check valve (6).
The flow from channel A to channel B is throttled at the throttling point (3). The throttle cross-section is set by rotation of the adjustment type (2) between the throttling point (3) and the throttle bolt (4).
For pressure-independent flow stabilization in channel B, a pressure compensator (5) is connected downstream to the throttling point (3).
The pressure compensator (5) is pressed by the compression spring (7) against the plug screw (8) and remains in open position if there is no flow through the valve. When there is a flow through the valve, the pressure in channel A applies a force on the pressure compensator (5). It is set to control position until the forces are balanced. If the pressure in channel A rises, the pressure compensator (5) moves in closing direction until the forces are balanced again. Due to this continuous compensation of the pressure compensator, a constant flow is obtained.
The free return flow from channel B to channel A is directed via the check valve (6).
| Screw-in cartridge valve |
| Maximum operating pressure 315 bar (4568 psi) |
| Maximum flow 6 l/min (1,6 gpm) |
| Cavity M22x1,5 |
| Data Sheet | Download Data Sheet |
| Max. pressure | 315 |
| Adjustment options | Grub screw with internal hexagon |
| Product family classification | Flow regulator 2 ways, pressure compensated with reverse flow check |
| Productgroup ID | 9,10,11,12,13,14 |
| Ports number | 2 |
| Sealing material | FKM |
| Cavity | M22x1,5 |
| Product type | 2FRM.K |
| Max. flow | 6 |
| Type of connection | Screw-in cartridge valve |
| Normal position | Normally open |
| Nominal flow | 6 |
| Direct - Pilot | Pilot operated |
| Product family | Flow regulator |
| Spool Poppet | Spool type |
| Weight | 0.2 |
| Hydraulic fluid | HL,HLP,HEES,HEPG |
|
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
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|
2FRM |
K |
2 |
– |
1X |
/ |
R |
V |
* |
|
01 |
2-way flow control valve |
2FRM |
|
02 |
Size 6 |
6 |
|
Size 10 |
10 |
|
|
03 |
Cartridge valve |
K |
|
Adjustment type |
||
|
04 |
Internal hexagon |
2 |
|
05 |
Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions) |
1X |
|
Flow (A → B) |
||
|
06 |
up to 6.0 l/min (size 6) |
6Q |
|
up to 32.0 l/min (size 6) |
32Q |
|
|
up to 60.0 l/min (size 10) |
60Q |
|
|
07 |
With check valve |
R |
|
Seal material |
||
|
08 |
FKM seals (other seals upon request) |
V |
|
Observe compatibility of seals with hydraulic fluid used. (Other seals upon request) |
||
|
09 |
Further details in the plain text |
|
Preferred types and standard units are contained in the EPS (standard price list).
general
|
Size |
6 | 10 | |
|
Weight |
kg |
0.19 | 0.6 |
|
Installation position |
any | ||
|
Ambient temperature |
°C |
-20 … +50 | |
hydraulic
|
Size |
6 | 10 | |||
|
Maximum operating pressure |
Anschluss A |
bar |
315 | 210 | |
|
Pressure differential Δp with free return flow B → A |
See characteristic curves | ||||
|
Minimum pressure differential |
bar |
18 | |||
|
Pressure stable (qV max) up to Δp = 315 bar / 210 bar |
% |
± 3 | |||
|
Flow |
Pv max |
l/min |
6 | 32 | 60 |
|
Pv min |
l/min |
0.05 | 0.25 | 0.5 | |
|
Hydraulic fluid |
see table | ||||
|
Hydraulic fluid temperature range |
°C |
-20 … +80 | |||
|
Viscosity range |
mm²/s |
10 … 800 | |||
|
Maximum admissible degree of contamination of the hydraulic fluid 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 oil |
HL, HLP |
FKM, NBR |
DIN 51524 |
|
|
Bio-degradable |
Insoluble in water |
HEES (synthetic esters) |
FKM |
VDMA 24568 |
|
HETG (rape seed oil) |
FKM, NBR |
|||
|
Soluble in water |
HEPG (polyglycols) |
FKM |
VDMA 24568 |
|
|
Other hydraulic fluids on request |
||||
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Size 6
Δp-qV characteristic curve via check valve (B → A) orifice closed
Size 6
Flow qV depending on inlet pressure p
Size 10
Δp-qV characteristic curve via check valve (B → A) orifice closed
Size 10
Flow qV depending on inlet pressure p
Detailed
simple
|
NG |
L1 |
L2 |
L3 |
L4 |
ØD1 |
|
mm |
mm |
mm |
mm |
mm |
|
| 6 | 25 | 29 | 33.5 | 77 | 6 |
| 10 | 36 | 41 | 45.5 | 109 | 6 |
|
1 |
Internal hexagon SW3 |
|
2 |
NG6: Hexagon SW27; MA = 40 Nm |
|
NG10: Hexagon SW41; MA = 120 Nm |
Mounting cavity according to DIN ISO 7789
Dimensions in mm
Mounting cavity according to DIN ISO 7789
Dimensions in mm
|
NG |
L1 |
L2 |
L3 |
L4 |
L5 |
L6 1) |
L7 |
ØD1 |
ØD2 |
D3 |
ØD4 |
ØD5 |
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|
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
|||
| 6 | 0.5 | 2.4 | + 0.4 | 17 | 24 | - 4 | 28 | ± 0.1 | 38.5 | 45 | + 0.2 | 34 | 23.8 | ± 0.1 | M22 x 1,5 | 19 | H7 | 7 |
| 10 | 0.5 | 3.1 | + 0.4 | 23 | 32 | - 4 | 39 | ± 0.4 | 55 | 65 | - | 46 | 35.4 | ± 0.1 | M33 x 2 | 29 | H8 | 11 |
| 1) | Depth of fit |
|
1 |
according to DIN 3852-W |