BOSCH REXROTH
R900221130
$1,269.07 USD
- BOSCH REXROTH
- Material:R900221130
- Model:2FRM6SB36-3X/3QRV
Quantity in stock: 0
The Bosch Rexroth 2FRM6SB36-3X/3QRV (R900221130) is a highly efficient industrial hydraulic valve designed for precise flow control in various applications. This direct-actuated valve provides reliable control of fluid flow to a set value, ensuring consistent performance regardless of pressure fluctuations. It features a lockable rotary knob with scale, allowing for accurate adjustments and a check valve to ensure unidirectional flow. With its spool symbol indicating functionality for both A to B and B to A flows, the 2FRM6SB36-3X/3QRV excels in applications where maintaining a constant flow is critical. The pressure compensator within the valve operates without closure, contributing to its ability to deliver steady flow rates even under varying pressure conditions. This makes it suitable for control panel installations where space and precision are paramount. The valve's threaded connection conforms to ISO standards, highlighting its compatibility with a broad range of industrial systems. It is designed with FKM seals and is capable of working with an array of hydraulic fluids including HL, HLP, HLPD, HVLP, HVLPD, HETG, HEES, HEPG, HFDU, and HFDR. This model from Bosch Rexroth stands out due to its robust construction and mechanical actuation which ensures durability and straightforward operation. Its maximum operating pressure and maximum flow rate are optimized for high-performance applications while maintaining a compact size that facilitates integration into diverse hydraulic circuits. The number of ports and switching positions further enhance the versatility of this valve. In summary, the Bosch Rexroth 2FRM6SB36-3X/3QRV offers precise control in demanding environments where reliable performance is essential. Its combination of advanced features ensures it meets the needs of sophisticated industrial hydraulic systems requiring meticulous flow regulation.
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: 1.8 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 (8).
Flow control valve type 2FRM 6 SB…RV
(without external closing, with check valve, with threaded connectionfor control panel installation)
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.
The free return flow from channel B to channel A is directed via the check valve (8).
Type 2FRM 6 SB76-3X/..RV
| Direct actuated |
| Without closing of the pressure compensator for control panel installation |
| Lockable rotary knob with scale |
| With check valve |
| 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 | 3 |
| Type of connection | Threaded connection |
| Connection diagram | ISO 228-1 |
| Number of switching positions | 2 |
| Weight | 1.8 |
| 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 for control panel installation |
A |
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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 |
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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 |
1.5 |
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Installation position |
any | |
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Ambient temperature range |
°C |
-20 … +50 |
hydraulic
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Size |
6 | ||||||||||
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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 | |
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Minimum flow |
up to 100 bar |
l/min |
0.01 | 0.03 | 0.05 | 0.07 | 0.1 | 0.25 | |||
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up to 315 bar |
l/min |
0.03 | 0.05 | 0.07 | 0.1 | 0.05 | |||||
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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 |
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without check valve; without external closing Type 2FRM 6 SB…MV |
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with check valve; without external closing Type 2FRM 6 SB…RV |
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Threaded port for control panel installation – version "SB"
Dimensions in mm
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1 |
Adjustment type "3" (lockable rotary knob with scale) |
|
2 |
Adjustment type "7" (rotary knob with scale) |
|
4 |
Space required to remove the key |
|
6 |
Name plate |
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9 |
Connection thread G3/8 according to ISO 228-1 |
|
10 |
Position of the marking vis-à-vis name plate |
Control panel installation:
Valve mounting screws (separate order)
4 hexagon socket head cap screws
ISO 4762 - M5 - 8.8-flZn-240h-L
at friction coefficient μtotal = 0.09 to 0.14,
Tightening torque MA = 7 Nm ± 10 %,
(minimum usable thread depth = 6.5 mm)
Subplates (separate order)
Type G 341/01 (G1/4)
Type G 342/01 (G3/8)
Type G 502/01 (G1/2)