Hydrotech Acquires Isaacs
Hydrotech ecommerce supports the continental US only

BOSCH REXROTH
2FRM6A76-3X/3QMV
R900209926
Presure Compensated Flow Control Valves

Flow-/throttle valves: FRM 6.-3x/

$1,104.00

BOSCH REXROTH

MATERIAL:  R900209926

SUMMARY:  Flow-/throttle valves: FRM 6.-3x/

Add to Cart

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

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

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)

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

Δp-qV characteristic curve via check valve (B → A) orifice closed

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

pE-qV characteristic curve

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

Temperature dependency at Δp = 20 bar

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

simplified

Detailed

without check valve;

with external closing

Type 2FRM 6 A…MV

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/ technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

with check valve;

with external closing

Type 2FRM 6 A…RV

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/ technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

Subplate mounting – version “A” and “B”

Dimensions in mm

technical illustration-2FRM6A76-3X/3QMV-Flow-/throttle valves: FRM  6.-3x/

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 plate

4 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 plate

4 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)