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BOSCH REXROTH
2WRCE63K001-1X/PG24/M-120
R901110657
High-Response Directonal Valves

Throttle control valves: 2WRC* 63.-1x/P

BOSCH REXROTH

MATERIAL:  R901110657

SUMMARY:  Throttle control valves: 2WRC* 63.-1x/P

Due to extremely high demand, please call 888-651-5712 for availability

The valve types 2WRC(E) are 3-stage high response valves.

They control the rate and direction of a flow and are primarily used in closed loop control circuits.

Design

They comprise of the following sub-assemblies:

A pilot control valve (1) as a 2-stage servo directional valve (pilot) With a dry torque motor Low friction jet / flapper amplifier and Mechanical feedback of the spool position A main control spool (2) for flow control An inductive position transducer (3) whose core (4) is attached to the spool (2) of the third stage And integrated control electronics (5) for 2WRCE orseparate electronics for the 2WRC version.

Function

Within the integrated control electronics (OBE) the command and actual values are compared and the pilot control valve solenoids are controlled via a currrent proportional the closed loop control deviation.

The pilot control valve asumes a proportional control position and controls the flows into or from control chambers A (6) and B (7), that actuate the main spool (2) by means of the closed loop control valve until the system deviation is 0.

The stroke of the main spool is thus controlled in proportion to the command value. It must be noted herethat the flow also depends on the valve pressure drop.

Valve features

Flow can be passed through the valve from A to B or from B to A.

The poppet spool closes or opens with a command value of approx. 2 %. With smaller command values the valve‘s closed loop control circuit trys to correct the spool position and thereby presses the spool, with up to the full system pressure, onto its seat and closes the connection leak-free.

The stated switching times are only valid for the closed loop control range of the valve. With command value jumps from the seat to small opening values, additional delay times occur.

The 2 % opening point (= 0.2 V) is factory pre-set. When replacing the pilot control valve or control electronics the opening point can be calibrated by adjusting the position transducer (3) by using the 13A/F nut.

When carrying out an exchange no adjustments to the control electronics and pilot control valve (= closed loop controller, controller or control electronics), other than the zero calibration at the position controller may be carried out.

Only the filter element can be replaced on the pilot control valve (see data sheet „Servo directional valve“)

Due to the diameter differences in the seat area, the spools are not pressure balanced. To compensate for the force differences for spool „K001“ 6 %, and for spools „D001“ and „S001“ 22 % of the system pressure is required as the control pressure, and then by adding reserves for flow forces and dynamics, the recommended minimum control pressure can be obtained (see technical data).

Attention:

A loss of power at the pilot control valve results in the spool being in an undefined position (2).

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P
1) Preferably, port B is to be connected to the actuator.

01

02

03

04

05

06

07

08

09

10

2

WRC

1X

/

S

/

*

01

2/2 directional valve

2

02

Electrically operated high-response valve for block installation

WRC

03

For external analog electronics

no code

With integrated electronics (OBE)

E

04

Size 63

63

Size 80

80

Size 100

100

Size 125

125

Size 160

160

Designation of the spool characteristic curve / 2-way function

05

Spool with standard poppet seat (linear)

K001

Spool with double cone (linear fine control range)

D001

Spool with control window (progressive fine control range)

S001

06

Component series 10 ... 19 (10 ... 19: unchanged installation and connection dimensions)

1X

Pilot control valve

07

Directional servo valve

S

Power supply

08

with .WRC

External control electronics

no code

with .WRCE

Supply voltage 24 VDC

G24

Supply voltage ± 15 VDC

G15

Seal material

09

NBR seals, suitable for mineral oil HL and HLP according to DIN 51524

M

FKM seals

V

10

Further details in the plain text

*

For applications outside these parameters, please consult us!

general

Type

2WRC(E).../S

Size

63 80 100 125 160

Component series

1X

Installation position

any, preferably horizontal

Weight

kg

56 114 198 357 635

Storage temperature range

°C

-20 … +80

Ambient temperature range

WRCE

°C

-20 … +60

WRC

°C

-20 … +70

Hydraulic (measured with HLP32, ϑoil = 40 ±5 °C)

Type

2WRC(E).../S

Size

63 80 100 125 160

Maximum operating pressure

bar

420

Maximum operating pressure

Main stage

Port A

bar

420

Port B

bar

420

Maximum operating pressure

Pilot control valve

Port X

bar

315

Port Y

bar

Pressure peaks < 100, static < 10

Nominal flow qVnom –10 % at Δp = 5 bar

For spool „K001“

l/min

2600 4100 6300 10100 17000

For spool „D001“

l/min

2300 3600 5800 9200 15000

For spool „S001“

l/min

1800 3000 5200 7800 13300

Zero flow of the servo pilot stage in relationship to pressure in line X

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Control flow

cm³

36.3 67.9 132.5 313.4 565.5

Min. control pressure in % of the system pressure

For spool „K001“

%

15

For spools „D001“ and „S001“

%

45

Maximum flow

For spools „K001“ and „D001“

l/min

5500 9000 14000 22000 35000

For spool „S001“

l/min

8000 13000 20000 30000 50000

Switching time

at 200 bar

Stroke 50%

ms

37 32 45 50 70

Stroke 100%

ms

70 50 75 90 120

at 315 bar

Stroke 50%

ms

30 25 35 40 60

Stroke 100%

ms

60 40 60 70 100

Pilot oil flow at X and Y with a stepped form of input signal from 0 to 100 % (315 bar)

l/min

42 135 165 320 430

Hydraulic fluid

Mineral oil (HL, HLP) to DIN 51524, other pressure fluids on request

Hydraulic fluid temperature range

°C

-20 … +80

preferably

°C

+40 … +50

Viscosity range

mm²/s

20 … 380

preferably

mm²/s

30 … 45

Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1)

Pilot control valve

Class 18/16/13 according to ISO 4406 (c)

Main valve

Class 20/18/15 according to ISO 4406 (c)

Hysteresis

%

≤ 0.5

Response sensitivity

%

≤ 0.2

Range of inversion

%

≤ 0.2
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.

electrical

Type

2WRC(E).../S

Voltage type

Direct voltage

Type of signal

analog

Valve protection to EN 60529

IP65 (with mating connector mounted and locked)

Opening point calibration

%

≤ 1

Zero shift upon change of

Hydraulic fluid temperature

%/10 K

≤ 0.3

Return pressure in Y 0 to 10 % from px

%/bar

≤ 0.3

Control pressure in X

%/100 bar

≤ 0.7

Control electronics

2WRCE

Integrated in the valve, see chapter Electrical connection, Block circuit diagram / pin allocation

2WRC

External control electronics, see data sheet 29931

Nominal command value range for 2WRCE:
0 ... +10 V ≙ 0 ... 100 %
In the command value range of 0 ... 0.2 V, the actual value remains constant at 0.2 V.
In case of slow command value modification from 0.2 V ... 10 V, the actual value follows the command value within ±0.1 V.
At a command value step to 10 V, the actual value can reach short-time values of up to approx. 10.5 V.

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

measured with HLP32, ϑOil = 40±5 °C

A Δp = 5 bar relates to a 100% flow value of the nominal flow of the associated table.

For other valve pressure differentials, the following applies:

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Type 2 WRC.../...
(2/2-way function)

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

2-way function

Type 2WRC (Simplified: main stage with pilot control valve)

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Type 2WRCE (Simplified: main stage with pilot control valve)

With integrated electronics (OBE)

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Type 2WRCE (Detailed: main stage with pilot control valve)

With integrated electronics (OBE)

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Component plug allocation with integrated electronics (OBE)

Component plug allocation

Pin

Allocation with a G24 supply voltage

Allocation with a G15 supply voltage

2WRCE

2WRCE

Power supply

A

+24 VDC

+15 VDC

B

0 VDC

-15 VDC

C

Enable (+24 V) 1)

Reference to A, B

Differential command value input

D

E

0 ... +10 V
Re = > 100 kΩ

0 ... +10 V
Re = > 100 kΩ

Actual value

F

+0.2 ... +10 V

Reference is pin B

0 ... ±10 V

Reference is pin C

Earth

PE

connected to valve housing

1) Without enable = SO37 ( –37 attached to the type code)

Mating connectors are included in the scope of delivery.

Do not connect PE if the valve has already been grounded via the system.

Supply voltage:

+24 VDC ±6 V; full bridge rectification with smoothing capacitor 2200 μF; Imax = 230 mA ±15 VDC ±0.45 V; stabilized and smoothened; Imax= 180 mA

Command value and actual value have the same polarity

D positive against E → main spool in opening direction

Notice:

Electrical signals provided via control electronics (e.g. actual value) must not be used to switch off safety-relevant machine functions!

(See also the European standard "Safety requirements for fluid-powered systems and their components - Hydraulics", EN 982!)

Integrated electronics (OBE) type VT13037 for valve type 2WRCE

Block diagram / pin assignment

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

External control electronics

Pin alloction for 2WRC

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

NG63

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P
technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Required surface quality of the valve contact surface

1

Pilot control valve (directional servo valve NG6)

2

Socket

3

Mating connector (material no. R900021267) included in the scope of delivery

4

Mating connector (material no. R900005414) included in the scope of delivery

5

Space required to remove the mating connector

6

Cabling (only with WRCE)

7

Valve mounting screws (included in the scope of delivery):
4 hexagon socket head cap screws ISO 4762 - M30 x 220- 10.9
Tightening torque for tightening factor 1.6: 1900 Nm

8

Locking pin for locating hole

9

Identical seal rings for ports X and Y

10

Name plate

11

Measuring ports for control pressures, threaded coupling G1/4

12

Transport aid

NG80

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P
technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Required surface quality of the valve contact surface

1

Pilot control valve (directional servo valve NG10)

2

Socket

3

Mating connector (material no. R900021267) included in the scope of delivery

4

Mating connector (material no. R900002460) included in the scope of delivery

5

Space required to remove the mating connector

6

Cabling (only with WRCE)

7

Valve mounting screws (included in the scope of delivery):
8 hexagon socket head cap screws ISO 4762 - M24 x 220- 10.9
Tightening torque for tightening factor 1.6: 960 Nm

8

Locking pin for locating hole

9

Identical seal rings for ports X and Y

10

Name plate

11

Measuring ports for control pressures, threaded coupling G1/4

12

Transport aid

Size 100

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P
technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Required surface quality of the valve contact surface

1

Pilot control valve (directional servo valve NG10)

2

Socket

3

Mating connector (material no. R900021267) included in the scope of delivery

4

Mating connector (material no. R900002460) included in the scope of delivery

5

Space required to remove the mating connector

6

Cabling (only with WRCE)

7

Valve mounting screws (included in the scope of delivery):
8 hexagon socket head cap screws ISO 4762 - M30 x 280 - 10.9
Tightening torque for tightening factor 1.6: 1900 Nm

8

Locking pin for locating hole

9

Identical seal rings for ports X and Y

10

Name plate

11

Measuring ports for control pressures, threaded coupling G1/4

12

Transport aid

NG125

Nominal dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P
technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Required surface quality of the valve contact surface

1

Pilot control valve (directional servo valve NG16)

2

Socket

3

Mating connector (material no. R900021267) included in the scope of delivery

4

Mating connector (material no. R900002460) included in the scope of delivery

5

Space required to remove the mating connector

6

Cabling (only with WRCE)

7

Valve mounting screws (included in the scope of delivery):
8 hexagon socket head cap screws ISO 4762 - M36 x 300- 10.9
Tightening torque for tightening factor 1.6: 3300 Nm

8

Locking pin for locating hole

9

Identical seal rings for ports X and Y

10

Name plate

11

Measuring ports for control pressures, threaded coupling G1/4

12

Transport aid

NG160

Nominal dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P
technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Required surface quality of the valve contact surface

1

Pilot control valve (directional servo valve NG16)

2

Socket

3

Mating connector (material no. R900021267) included in the scope of delivery

4

Mating connector (material no. R900002460) included in the scope of delivery

5

Space required to remove the mating connector

6

Cabling (only with WRCE)

7

Valve mounting screws (included in the scope of delivery):
12 hexagon socket head cap screws ISO 4762 - M42 x 420- 10.9
Tightening torque for tightening factor 1.6: 5000 Nm

8

Locking pin for locating hole

9

Identical seal rings for ports X and Y

10

Name plate

11

Measuring ports for control pressures, threaded coupling G1/4

12

Transport aid

Installation dimensions to DIN ISO 7368 – except for NS125 and 160

NG63

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

NG80 and 100

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

NG125

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

NG160

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

1

Locating hole

Tolerances according to ISO 2768-mK

Recess of connections X and Y in the block only for NG160

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Installation bore for type 2WRC... according to DIN ISO 7368

Dimensions in mm

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

1

Depth of fit, minimum dimension

2

The ports P, T and B can be positioned around the central axis of port A. Sufficient distance from the mounting and control bores is to be observed

Tolerances according to ISO 2768-mK

NG

ØD1H7

ØD2H7

ØD3H7

ØD4

ØD5

ØD6H7

ØD7

D8

max. ØD9

ØD10

H1

H2

H3

H4

H5

H7

H8

H9

H10

H11

H12

H13

H16

H17

H18

L1

L2

L3

L4

L5

W

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

63 120 116 90 63 48 90 63 M30 12 8 130 155 95 40 20 85 165 195 57 137 33 28 4 4 65 180 125 62.5 75 38 0.05
80 145 140 110 80 60 110 80 M24 16 10 175 205 130 40 25 125 215 245 90 180 60 25 5 5 50 250 200 - - - 0.1
100 180 174 135 100 75 135 100 M30 20 10 210 245 155 50 29 155 270 305 112 225 75 32 5 5 63 300 245 - - - 0.2
125 225 220 200 150 95 200 125 - - - 257 300 192 40 31 195 335 380 140 280 93 37 5.5 7 - - - - - 0.2
160 300 290 270 200 120 270 200 - - - 370 425 268 50 45 245 420 480 175 350 115 45 5.5 8 - - - - - 0.2

Mating connectors for valves with round connector, 6-pole + PE

7P Z31

technical illustration-2WRCE63K001-1X/PG24/M-120-Throttle control valves: 2WRC* 63.-1x/P

Mating connectors for valves with round connector, 6-pole + PE

7P Z31

For valves with round connector according to EN 175201-804, 6-pole + PE as well as 6-pole, compatible with VG 95328

Data sheet

Spare parts & repair