BOSCH REXROTH
R900205518
$1,057.65 USD
- BOSCH REXROTH
- Material:R900205518
- Model:2FRM6B36-3X/6QMV
Quantity in stock: 0
The Bosch Rexroth 2FRM6B36-3X/6QMV (R900205518) is a high-performance, mechanically actuated industrial hydraulic valve designed for reliable control of flow to a set value. This valve operates without a check valve and features direct actuation, with the ability to lock the rotary knob, which includes a scale for precise adjustments. The spool symbol indicates the flow direction from A to B and B to A. It has been engineered for maximum pressure sustainability within its product group and offers multiple ports for connectivity. The 2FRM6B36-3X/6QMV valve is characterized by its mechanical actuation and subplate mounting capability, with connection diagrams adhering to ISO standards. The number of switching positions and its weight are specified by Bosch Rexroth standards. This valve uses FKM seals and is compatible with a variety of hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, HFDR. The core function of this valve is to maintain a constant flow regardless of pressure and temperature changes. It comprises several components including housing, rotary knob, orifice bush, and pressure compensator. The absence of an external closing mechanism and check valve simplifies the design while ensuring consistent performance. For applications requiring controlled flow in both directions, an additional rectifier sandwich plate type ZS can be mounted below the 2FRM6B36-3X/6QMV valve. This versatility makes it suitable for various hydraulic systems where steady flow rates are crucial. The product also offers different adjustment types such as a rotary knob with scale or a lockable version thereof. In summary, the Bosch Rexroth 2FRM6B36-3X/6QMV is designed for precise control in demanding hydraulic applications where consistent flow rates are needed despite varying pressures and temperatures.
Size 6, A → B, B → A, mechanically actuated
Industrial hydraulic valve in a high performance range. Reliable control of the flow to setting value.
Unpacked Weight: 1.017 kg
General information
The flow control valve type 2 FRM is a 2-way flow control valve.
It is used for maintaining a constant flow, independent of pressure and temperature.
The valve basically consists of housing (1), rotary knob (2), orifice bush (3), pressure compensator (4) and an optional check valve.
Flow control valve type 2FRM 6 B…MV
(without external closing, without check valve)
The flow from channel A to channel B is throttled at the throttling point (5). The throttle cross-section is set by turning the rotary knob (2). To ensure a pressure-independent and constant flow in channel B, a pressure compensator (4) is fitted downstream of the throttling point (5).
The compression spring (6) presses the pressure compensator (4) downwards against its stop and keeps the pressure compensator (4) in the open position when there is no flow through the valve. When fluid flows through the valve, the pressure acting in channel A applies a force to the pressure compensator (4) via orifice (7).
The pressure compensator (4) moves into the controlled position until the forces balance. If the pressure in channel A rises, the pressure compensator (4) moves in the closing direction until the forces are balanced again. Due to this continuous compensation of the pressure compensator (4), a constant flow is obtained.
In order to control a flow through the valve in both directions, a rectifier sandwich plate type Z4S 6 may be fitted below this flow control valve.
Type 2FRM 6 B76-3X/.MV
| Without check valve |
| Direct actuated |
| Without closing of the pressure compensator |
| Lockable rotary knob with scale |
| Maximum operating pressure 315 bar |
| Size 6 |
| Maximum flow 32 l/min |
| Component series 3X |
| Data Sheet | Download Data Sheet |
| Manual | Download Manual |
| Manual | Download Manual |
| Manual | Download Manual |
| Spool symbol | A → B, B → A |
| Max. pressure | 315 |
| Productgroup ID | 9,10,11,12,13,14 |
| Number of ports | 4 |
| Type of actuation | with mechanical actuation |
| Size | 6 |
| Max. flow | 6 |
| Type of connection | Subplate mounting |
| Connection diagram | ISO 6263-03-02-*-13 |
| Number of switching positions | 2 |
| Weight | 1.017 |
| Seals | FKM |
| Hydraulic fluid | HL,HLP,HLPD,HVLP,HVLPD,HETG,HEES,HEPG,HFDU,HFDR |
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01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
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2FRM |
6 |
6 |
– |
3X |
/ |
V |
* |
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01 |
2-way flow control valve |
2FRM |
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02 |
Size 6 |
6 |
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03 |
without closing of the pressure compensator |
B |
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Adjustment type |
||
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04 |
Lockable rotary knob with scale 1) |
3 |
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Rotary knob with scale |
7 |
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05 |
Zero position of the marking at port P |
6 |
|
06 |
Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) |
3X |
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Flow (A → B) |
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07 |
up to 0.2 l/min |
0,2Q |
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up to 0.6 l/min |
0,6Q |
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up to 1.5 l/min |
1,5Q |
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up to 3.0 l/min |
3Q |
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up to 6.0 l/min |
6Q |
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up to 10 l/min |
10Q |
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up to 16 l/min |
16Q |
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up to 25.0 l/min |
25Q |
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up to 32.0 l/min |
32Q |
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|
08 |
With check valve |
R |
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Without check valve |
M |
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Seal material |
||
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09 |
FKM seals (other seals upon request) |
V |
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Observe compatibility of seals with hydraulic fluid used. |
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|
10 |
Further details in the plain text |
* |
| 1) Key with material no. R900008158 is included in the scope of delivery. |
Preferred types and standard units are contained in the EPS (standard price list).
general
|
Size |
6 | |
|
Weight (approx.) |
kg |
1.3 |
|
Installation position |
any | |
|
Ambient temperature range |
°C |
-20 … +50 |
hydraulic
|
Size |
6 | ||||||||||
|
Maximum operating pressure 1) |
Anschluss A |
bar |
315 | ||||||||
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Pressure differential Δp with free return flow B → A |
See characteristic curves | ||||||||||
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Minimum pressure differential |
bar |
6 … 14 | |||||||||
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Pressure stable (qV max) to Δp = 315 bar |
% |
± 2 | |||||||||
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Maximum flow |
l/min |
0.2 | 0.6 | 1.5 | 3 | 6 | 10 | 16 | 25 | 32 | |
|
Minimum flow |
up to 100 bar |
l/min |
0.01 | 0.03 | 0.05 | 0.07 | 0.1 | 0.25 | |||
|
up to 315 bar |
l/min |
0.03 | 0.05 | 0.07 | 0.1 | 0.05 | |||||
|
Hydraulic fluid |
Mineral oil (HL, HLP) according to DIN 51524, other hydraulic fluids on request | ||||||||||
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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 2) |
Class 20/18/15 according to ISO 4406 (c) | ||||||||||
| 1) | In applications with rectifier sandwich plate up to 210 bar |
| 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. |
For applications outside these parameters, please consult us!
(measured with HLP46, ϑOil = 40 ±5 °C)
Flow dependent on the scale setting (flow control A → B)
Δp-qV characteristic curve via check valve (B → A) orifice closed
pE-qV characteristic curve
Temperature dependency at Δp = 20 bar
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simplified |
Detailed |
|
|
without check valve; without external closing Type 2FRM 6 B…MV |
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with check valve; without external closing Type 2FRM 6 B…RV |
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Subplate mounting – version “A” and “B”
Dimensions in mm
|
1 |
Adjustment type "3" (lockable rotary knob with scale) |
|
2 |
Adjustment type "7" (rotary knob with scale) |
|
3 |
Identical seal rings for ports A, B, P, and T |
|
4 |
Space required to remove the key |
|
5 |
Bore Ø3 mm at version "B" not bored (without external closing) |
|
6 |
Name plate |
|
7 |
Position of the marking at port P |
|
8 |
Porting pattern according to DIN 24340 form A |
Subplate mounting:
Valve mounting screws (separate order)
without rectifier sandwich plate4 hexagon socket head cap screws
ISO 4762 - M5 x 30 - 10.9-flZn-240h-L
at friction coefficient μtotal = 0.09 to 0.14,
Tightening torque MA = 7 Nm ± 10 %,
Material no. R913000316
with rectifier sandwich plate4 hexagon socket head cap screws
ISO 4762 - M5 x 70 - 10.9-flZn-240h-L
at friction coefficient μtotal = 0.09 to 0.14,
Tightening torque MA = 7 Nm ± 10 %,
Material no. R913000325
Subplates (separate order)
Type G 341/01 (G1/4)
Type G 342/01 (G3/8)
Type G 502/01 (G1/2)