BOSCH REXROTH
R900217537
$980.82 USD
- BOSCH REXROTH
- Material:R900217537
- Model:2FRM6A76-3X/32QMV
Quantity in stock: 0
The Bosch Rexroth 2FRM6A76-3X/32QMV (R900217537) is a sophisticated flow control valve designed to ensure a consistent flow rate, regardless of fluctuations in pressure and temperature. This particular model features a durable housing, an adjustable rotary knob, an orifice bush, and a pressure compensator. Additionally, it includes an optional check valve for enhanced functionality. The 2FRM6A76-3X/32QMV is equipped with external closing capabilities through channel P, allowing for the pressure compensator to be held in a closed position against the compression spring. This feature allows for smooth startup and operation by avoiding abrupt flow jumps when the directional valve transitions to allow flow from P to B. This valve is specifically designed for supply control applications and offers reliable performance with its porting pattern according to DIN form A. It requires separate order subplates for installation. Users can benefit from various adjustment options including a rotary knob with scale or a lockable rotary knob with scale, depending on specific requirements. It's important to consider that there will be a pressure loss from port P upstream of the directional valve to port A upstream of the flow control valve, which may result in reduced flow. The 2FRM6A76-3X/32QMV has been engineered for precision and durability, supporting maximum operating pressures up to bar levels and accommodating maximum flow rates measured in liters per minute as specified in its technical data. This model is part of Component series X by Bosch Rexroth, which is known for its high-quality hydraulic components suitable for various applications requiring precise fluid control.
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 (8).
Flow control valve type 2FRM 6 A…RV
(with external closing, with check valve)
In principle, the function of this valve is the same as that of valve type 2FRM 6 B…MV.
However, the flow control valve is provided with the possibility of an external closing of the pressure compensator (4) via channel P (9). The external pressure acting in channel P (9) via orifice (10), holds the pressure compensator (4) in closed position against the compression spring (6). When the connected directional valve (11) is switched over to permit flow from P to B, control is achieved as with type 2FRM 6 B. Thus, a start-up jump is avoided.
The version with pressure compensator closing can only be used for supply control.
The free return flow from channel B to channel A is directed via the check valve (8).
Attention!
The pressure loss of port P upstream of the directional valve to port A upstream of the flow control valve makes itself felt by a reduced flow.
Type 2FRM 6 A76-3X/..RV
01 |
02 |
03 |
04 |
05 |
06 |
07 |
08 |
09 |
10 |
||
2FRM |
6 |
6 |
– |
3X |
/ |
V |
* |
01 |
2-way flow control valve |
2FRM |
02 |
Size 6 |
6 |
03 |
with closing of the pressure compensator (suppression of the start-up jump) |
A |
Adjustment type |
||
04 |
Lockable rotary knob with scale 1) |
3 |
Rotary knob with scale |
7 |
|
05 |
Zero position of the marking at port P |
6 |
06 |
Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions) |
3X |
Flow (A → B) |
||
07 |
up to 0.2 l/min |
0,2Q |
up to 0.6 l/min |
0,6Q |
|
up to 1.5 l/min |
1,5Q |
|
up to 3.0 l/min |
3Q |
|
up to 6.0 l/min |
6Q |
|
up to 10 l/min |
10Q |
|
up to 16 l/min |
16Q |
|
up to 25.0 l/min |
25Q |
|
up to 32.0 l/min |
32Q |
|
08 |
With check valve |
R |
Without check valve |
M |
|
Seal material |
||
09 |
FKM seals (other seals upon request) |
V |
Observe compatibility of seals with hydraulic fluid used. |
||
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 | ||||||||
Pressure differential Δp with free return flow B → A |
See characteristic curves | ||||||||||
Minimum pressure differential |
bar |
6 … 14 | |||||||||
Pressure stable (qV max) to Δp = 315 bar |
% |
± 2 | |||||||||
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 | ||||||||||
Hydraulic fluid temperature range |
°C |
-20 … +80 | |||||||||
Viscosity range |
mm²/s |
10 … 800 | |||||||||
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
simplified |
Detailed |
|
without check valve; with external closing Type 2FRM 6 A…MV |
|
|
with check valve; with external closing Type 2FRM 6 A…RV |
|
|
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)