You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.
Image not available

BOSCH REXROTH
R900434256


$1,200.00 USD
  • BOSCH REXROTH
  • Material:R900434256
  • Model:2FRM10-3X/16QB

Due to extremely high demand, please call 920-337-0234 for availability

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 2FRM10-3X/16QB (R900434256) is a meticulously engineered flow control valve designed to maintain a consistent flow rate, largely unaffected by fluctuations in pressure and temperature. This valve incorporates a robust housing and an orifice bush, with a pressure compensator that can be optionally fitted with stroke limitation for precise control. The integrated check valve ensures unidirectional regulated flow from channel A to B, while the free return flow is managed via the same check valve. This model features mechanical actuation and includes a geared piston drive equipped with an adjustable stroke limitation, allowing for fine-tuning of the positioning velocity through the throttle check valve. The design of this valve ensures temperature stability by utilizing an orifice design at the throttling point. For applications requiring oscillating flows, this valve can accommodate forward and return flows through the installation of a rectifier sandwich plate type ZS beneath it. The 2FRM10-3X/16QB is designed for subplate mounting with porting patterns conforming to DIN form G and ISO standards. This particular model falls under component series X, indicating its place within Bosch Rexroth's lineup of high-quality hydraulic components. It supports a maximum operating pressure of up to several hundred bar and can handle maximum flow rates in liters per minute as specified in its technical documentation. With these specifications, the Bosch Rexroth 2FRM10-3X/16QB flow control valve stands as an essential component for hydraulic systems requiring precise flow management under varying operational conditions.

Flow control valves type 2FRM are 2-way flow control valves. They are used to maintain a constant flow, mostly independent of pressure and temperature.

Generally, the valves consist of housing (1), orifice bush (2), pressure compensator (3) with optional stroke limitation (3.1), check valve (4), adjustment element (5) at type 2FRM as well as geared piston drive (6), and directional valve (7). The flow from channel A to channel B is throttled at the throttling point (9). The throttle cross-section of type 2FRM is set by mechanically turning the curved bolt (10) over the adjustment element (5). The positioning velocity can be set by means of the throttle check valve (6.3 and 6.4). To fix the required adjustment range, the geared piston drive (6) is equipped with an adjustable stroke limitation (6.1 and 6.2) on both sides. An upstream pressure compensator (3) is included to ensure a pressure-independent and constant flow at throttling point (9).

Temperature independence is achieved thanks to the orifice design of the throttling point.

The free return flow from channel B to channel A is directed via the check valve (4).

The regulated flow only flows from channel A to B.

For oscillating flows (forward and return flow), a rectifier sandwich plate type Z4S can be installed under the flow control valve.

 

Type 2 FRM...

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN 24340 form G and ISO 6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Section X–X

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN 24340 form G and ISO 6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

01

02

03

04

05

06

07

08

09

10

11

2FR

–

3X

/

*

01

2-way flow control valve

2FR

Type of actuation

02

Mechanical

M

Hydraulic

H

Electro-hydraulic

W

03

Size 10

10

Size 16

16

04

Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)

3X

Flow range A to B

05

Size 10, linear

Up to 10 l/min

10L

Up to 16 l/min

16L

Up to 25 l/min

25L

Up to 50 l/min

50L

Size 16, linear

Up to 60 l/min

60L

Up to 100 l/min

100L

Up to 160 l/min

160L

06

Without pressure compensator stroke limitation

no code

With pressure compensator stroke limitation

B

07

Without actual value potentiometer

no code

With actual value potentiometer (only types 2FRH and 2FRW)

P

08

With concealed manual override (standard)

N9

With manual override

N

Without manual override

no code

Electrical connection

09

Individual connection

Without mating connector; connector DIN EN 175301-803

K4 1)

Seal material

10

NBR seals

no code

FKM seals

V

Observe compatibility of seals with hydraulic fluid used.

11

Further details in the plain text

*

1) Mating connectors, separate order.

Preferred types and standard units are contained in the EPS (standard price list).

general

Size

10 16

Weight

kg

5.6 11.3

Installation position

any

Ambient temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

hydraulic

Size

10 16

Maximum flow

l/min

10
16
25
50 		60
100
160

Maximum operating pressure

Anschluss A

bar

315

Pressure differential with free return flow B to A, qV-dependent

bar

2 2.5 3.5 6 2.8 4.3 7.3

Minimum pressure differential

bar

3 … 7 5 … 12

Flow control

Thermally stable (qV max) at –20 … +80 °C

%

± 2

Pressure stable (qV max) to Δp = 315 bar

%

± 2 < ± 5

Hydraulic fluid

see table

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seals

°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 oils

HL, HLP

NBR, FKM

DIN 51524

Bio-degradable

Insoluble in water

HETG

NBR, FKM

VDMA 24568

HEES

FKM

Soluble in water

HEPG

FKM

VDMA 24568

Containing water

Water-free

HFDU

FKM

ISO 12922

Containing water

HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620)

NBR

ISO 12922

Important information on hydraulic fluids!

For further 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.

Flame-resistant – containing water:

Maximum pressure differential per control edge 50 bar.

Pressure pre-loading at the tank port >20% of the pressure differential; otherwise, increased cavitation

Life cycle compared to operation with mineral oil HL, HLP 50 to 100 %

Bio-degradable: When using bio-degradable hydraulic fluids that are zinc-solving, zinc may accumulate in the fluid (700 mg zinc per pole tube)

electrical ‑ Actual value potentiometer

Resistance

Ω

1000

Load capacity

W

5

Maximum wiper current

A

0.12

Protection class according to DIN EN 60529

IP65

Control limit error at 10°/s (depending on the positioning velocity)

°

± 1.5

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

Flow control (A to B)

NG10

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Flow control (A to B)

NG16

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Free return flow (B to A)

NG10

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Free return flow (B to A)

NG16

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

simplified

Detailed

Type 2FRM

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Dimensions in mm

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

NG

B1

B2

B3

B4

B5

B6

ØD1

ØD2

D3

H1

H2

H3

H4

H5

L1

L2

L3

L4

T1

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

10 101.5 82.5 9.5 68 58.7 35.5 9 15 6 125 95 26 51 60 95 76 9.5 79.4 13
16 123.5 101.5 11 81.5 72.5 41.5 11 18 6 147 117 34 72 82 123.5 101.5 11 102.4 12

Subplates (separate order)

Size 10:

G 279/01 (G 1/2)

G 280/01 (G 3/4)

Size 16:

G 281/01 (G 1)

G 282/01 (G 1 1/4)

Valve mounting screws (separate order)

Size 10:

4 hexagon socket head cap screws ISO 4762 - M8 x 50 - 10.9-flZn-240h-L

(friction coefficient μtotal = 0.09 to 0.14);

Tightening torque MA = 30 Nm ± 10 %,

Material no. R913000543

Size 16:

4 hexagon socket head cap screws ISO 4762 - M10 x 80 - 10.9-flZn-240h-L

(friction coefficient μtotal = 0.09 to 0.14);

Tightening torque MA = 64 Nm ±10 %,

Material no. R913000496

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Mating connectors for valves with connector “K4”, without circuitry, standard

3P Z4

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Mating connectors for valves with connector “K4”, with indicator light

3P Z5L

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Mating connectors for valves with connector “K4”, with indicator light

3P Z5L

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Mating connectors for valves with connector “K4”, with indicator light and Zener diode suppression circuit

3P Z5L1

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Mating connectors for valves with connector “K4”, with indicator light and Zener diode suppression circuit

3P Z5L1

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair

Mating connectors for valves with connector “K4”, with rectifier

3P RZ5

technical illustration-R900434256-For subplate mounting Porting pattern according to DIN&nbsp;24340 form G and ISO&nbsp;6263 Mechanical actuation Pressure compensator stroke limitation, optional Start-up jump reduction Flow control in both directions through rectifier sandwich plate

Mating connectors for valves with connector “K4”, with rectifier

3P RZ5

For valves with connector “K4” according to EN 175301-803 and ISO 4400, 2-pole + PE, “large cubic connector” Mating connectors for valves with one or two solenoids (individual connection)

Data sheet

Spare parts & repair