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DR10-5-5X/200YM

Pressure reducing valve, pilot-operated
Size 10 … 32
Component series 5X
Maximum operating pressure 350 bar
Maximum flow 400 l/min
Availability:
Quantity:
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  • DR10-5-5X/200YM

  • Rexroth

  • R900598358

  • For subplate mounting

  • Porting pattern according to ISO 6264-06-09 (NG10), ISO 6264-08-13 (NG25) and ISO 6264-10-17 (NG32)

  • For threaded connection

  • As screw-in cartridge valve (cartridge)

  • 4 adjustment types for pressure adjustment, optionally 
    • Rotary knob
    • Sleeve with hexagon and protective cap
    • Lockable rotary knob with scale
    • Rotary knob with scale

  • 5 pressure ratings

  • Solenoid-operated unloading via built-on directional spool valve or directional poppet valve

  • High-power solenoid

  • Switching shock damping, optional



Pressure valves of type DR are pilot-operated pressure reducing valves controlled from the secondary circuit.

The pressure reducing valves basically consist of the main valve (1) with main spool insert (3) and pilot control valve (2) with adjustment type.

In the rest position the valves are open. Hydraulic fluid flows from channel B via the main spool insert (3) to channel A without restrictions. The pressure applied to channel A acts on the lower main spool side. Simultaneously, pressure is applied to the spring-loaded side of the main spool (3) via the nozzle (4) and to the ball (6) in the pilot control valve (2) via the channel (5). It also acts via the nozzle (7), control line (8), check valve (9) and nozzle (10) on the ball (6). Depending on the setting of the spring (11), a pressure builds up in front of the ball (6), in the channel (5) and in the spring chamber (12) holding the control spool (13) in the opened position. The hydraulic fluid in channel B can flow via the main spool insert (3) to channel A without restrictions until a pressure builds up in channel A which exceeds the value set at the spring (11) and opens the ball (6). The control spool (13) moves into closing direction.

The desired reduced pressure is achieved when there is a state of equilibrium between the pressure in channel A and the pressure set at the spring (11).

The pilot oil return from the spring chamber (14) is always realized externally via the control line (15) into the tank.

For the free flow back from channel A to channel B, a check valve (16) can optionally be installed.

A pressure gauge connection (17) allows for the control of the reduced pressure in channel A.

Type DR..-4-5X/...Y...



01

02

03

04

05

06

07

08

09


10

11

12

13

14

15

16

17

18

19

20

21

22

DB








5X

/













*

01

Pressure relief valve

DB

02

Without directional valve

no code

03

Pilot-operated valve (complete)

no code

Pilot control valve without main spool insert (do not enter any size)

C

Pilot control valve with main spool insert (enter size 10 or 30)

C

Pilot control valve without main spool insert for subplate mounting (do not enter any size)

1)

04

Size 10

Subplate mounting "no code"

10

Threaded connection "G"

10 (G1/2)

Size 16

Threaded connection "G"

15 (G3/4)

Size 25

Subplate mounting "no code"

20

Threaded connection "G"

20 (G1)

Threaded connection "G"

25 (G1 1/4)

Size 32

Subplate mounting "no code"

30

Threaded connection "G"

30 (G1 1/2)

05

Without directional valve

no code

Type of connection

06

Subplate mounting or cartridge valve

no code

For threaded connection

G

Adjustment type for pressure adjustment

07

Rotary knob (not for version "C" and "T")

1

Sleeve with hexagon and protective cap

2

Lockable rotary knob with scale

2)

Rotary knob with scale

7

08

Main spool Ø24 mm (all sizes)

Main spool Ø28 mm (only for NG32)

N

09

Component series 50 … 59 (50 … 59: unchanged installation and connection dimensions)

5X

10

Set pressure up to 50 bar

50

Set pressure up to 100 bar

100

Set pressure up to 200 bar

200

Set pressure up to 315 bar

315

Set pressure up to 350 bar

350

Pilot oil flow

11

External pilot oil supply, internal pilot oil return

X 3)

Internal pilot oil supply, external pilot oil return

Y

Pilot oil supply and pilot oil return external

XY 3)

12

Standard version

no code

Valve for minimum cracking pressure (not for versions "without main spool insert" and not suitable for mutual relief)

4)

13

Without switching shock damping

no code

14

Without directional valve

no code

15

Without directional valve

no code

16

Without manual override

no code

Electrical connection

17

Without directional valve

no code

18

Without directional valve

no code

Corrosion resistance

19

None

no code

Improved corrosion protection (240 h salt spray test according to EN ISO 9227)

J3 5)

Seal material

20

NBR seals

no code

FKM seals

V

Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)

Equipment Directive

21

Without type-examination procedure

no code

Type-examination tested safety valve according to Pressure Equipment Directive 2014/68/EU

E

22

Further details in the plain text

*

1) DBT corresponds to DBC, however with closed central bore
2) H-Key with material no. R900008158 is included in the scope of delivery.
3) Not with version "DBC"
4) Only possible up to pressure rating 315 bar
5) Only version "2", however without protective cap

Type-examination tested safety valves type DB…E

(Component series 5X according to Pressure Equipment Directive 2014/68/EU)

NG

Type designation

Component marking

Maximum flow qVmaxin l/min with pilot oil return

Set response overpressure p in bar

external "Y"

internal "–"

10

TÜV.SV.▢ – 851.12.F.G.p

170

230

230

230

130

200

200

200

30 ... 60

61 ... 110

111 ... 210

211 ... 350

25

TÜV.SV.▢ – 852.22.F.G.p

250

270

420

450

180

210

320

400

30 ... 60

61 ... 110

111 ... 210

211 ... 350

32

TÜV.SV.▢ – 853.32.F.G.p

600

600

650

700

225

340

540

580

30 ... 60

61 ... 110

111 ... 210

211 ... 350

1

For subplate mounting

no code

For threaded connection

G

Adjustment type for pressure adjustment

2

Hand wheel (pressure adjustment sealed, unloading or setting of a lower response pressure possible!)

1

With sealed protective cap (no adjustment/unloading possible)

2

Pressure

3

To be entered by the customer, e.g. pressure adjustment ≥ 30 bar and possible in 5 bar steps.

e.g. 150

Pilot oil flow

4

Pilot oil supply internal, pilot oil return internal

no code

Pilot oil supply internal, pilot oil return external (Recommendation)

1)

5

NBR seals

no code

FKM seals

V

Value entered at the factory

1) Pilot oil supply external "X" not possible



general

Size

10162532


DB.. 15DB.. 20DB.. 25

Weight

Subplate mounting

DBW...

kg

4.05-4.95-5.85

DBWC...

kg

2.65

DBWC 10 or 30 ...

kg

2.95

Threaded connection

DBW...G

kg

6.756.656.556.456.25

Installation position

any

Ambient temperature range

NBR seals


°C

-30 … +50

FKM seals


°C

-15 … +50

Minimum stability of the housing materials

with subplate mounting and version "DBWC"


Housing materials are to be selected so that there is sufficient safety for all imaginable operating conditions (e.g. with regard to pressure resistance, thread stripping strengths and tightening torques).

hydraulic

Size

1016252532

Maximum operating pressure

Port P

bar

350

Port X

bar

350

Port T

bar

315

Maximum counter pressure

Port Y (DC solenoid)

bar

210

Port Y (AC solenoid)

bar

160

Port T (DC solenoid)

bar

210

Port T (AC solenoid)

bar

160

Minimum set pressure

flow-dependent, see "characteristic curves"

Maximum set pressure

bar

50
100
200
315
350

Maximum flow

Subplate mounting

l/min

250-500-650

Threaded connection

l/min

250500650

Hydraulic fluid

see table

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-15 … +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.

Notes:

  • Tank preloading adds to the minimum set pressure (ports T and Y)

  • Technical data for directional seat valve see data sheet 22058, for directional spool valve data sheet 23178.

Hydraulic fluid

Classification

Suitable sealing materials

Standards

Data sheet

Mineral oils

HL, HLP

NBR, FKM

DIN 51524

90220

Bio-degradable

1)

Insoluble in water

HETG

FKM

ISO 15380

90221

HEES

FKM

Soluble in water

HEPG

FKM

ISO 15380

Flame-resistant

Water-free

HFDU (glycol base)

FKM

ISO 12922

90222

HFDU (ester base)

1)

FKM

Important information on hydraulic fluids:

  • For further information and data on the use of other hydraulic fluids, please refer to the data sheets above or contact us.

  • There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.).

  • The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum solenoid surface temperature.

  • Flame-resistant – containing water:

  • Maximum operating pressure 210 bar

  • Life cycle as compared to operation with mineral oil HL, HLP 30 … 100 %

  • Maximum hydraulic fluid temperature 60 °C

  • Bio-degradable and flame-resistant: If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system.

1)Not recommended for corrosion-protected version “J3”

Deviating technical data: Type-examination tested safety valves type DBW…E

(Component series 5X according to Pressure Equipment Directive 2014/68/EU)

hydraulic

Version


Pilot oil flow "no code"Pilot oil flow "Y"

Maximum counter pressure

Port Y

bar

-0

Port T

bar

See characteristic curves and explanatory notes for maximum counter pressurePT < 15

Maximum flow


See ordering code, safety instructions and characteristic curves "Type-examination tested safety valve"

Hydraulic fluid


Mineral oil (HL, HLP) according to DIN 51524 and DIN 51524-1

Hydraulic fluid temperature range

°C

-10 … +60

Viscosity range

mm²/s

12 … 230

(For applications outside these values, please consult us!)



Cartridge valve

Dimensions in mm

1

Name plate

2.1

Y port for pilot oil return, external

2.2

Port Y optionally for external pilot oil return

3

Adjustment type "4"

4

Adjustment type "5"

5

Adjustment type "6"

6

Adjustment type "7"

7

Hexagon SW10

8

Space required to remove the key

9

Valve mounting bores

10

Seal rings

11

Main spool insert

12

Seal ring

13

Seal ring

14

Seal ring

15

Support ring

16

Support ring

Valve mounting screws (separate order)

Quantity

Hexagon socket head cap screws

Material number

4

ISO 4762 - M8 x 40 - 10.9-flZn/nc/480h/C

(Friction coefficient μtotal = 0.09 … 0.14)

Tightening torque MA = 31 Nm ±10 %

R913015798

Notice:

The dimensions are nominal dimensions which are subject to tolerances.

Threaded connection

Dimensions in mm

1

Name plate

2.1

Y port for pilot oil return, external

3

Adjustment type "4"

4

Adjustment type "5"

5

Adjustment type "6"

6

Adjustment type "7"

7

Hexagon SW10

8

Space required to remove the key

9

Valve mounting bores

17

Pressure gauge connection

Version

D1

ØD2

T1


mm

mm

"10" G1/2 34 14
"15" G3/4 42 16
"20" G1 47 18
"25" G1 1/4 58 20
"30" G1 1/2 65 22

Notice:

The dimensions are nominal dimensions which are subject to tolerances.

Subplate mounting

Dimensions in mm

Required surface quality of the valve contact surface

1

Name plate

2.1

Y port for pilot oil return, external

2.2

Port Y optionally for external pilot oil return

3

Adjustment type "4"

4

Adjustment type "5"

5

Adjustment type "6"

6

Adjustment type "7"

7

Hexagon SW10

8

Space required to remove the key

9

Valve mounting bores

17

Pressure gauge connection

18

Identical seal rings for ports A and B

Identical seal rings for ports X and Y

19

Port X without function (blind bore)

20

Locking pin

Version

L1

L2

L3

L4

L5

L6

L7

L8

L9

L10

B1

B2

B3

B4

B5

H1

H2

H3

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

10 96 35.5 33 42.9 21.5 - 7.2 21.5 31.8 35.8 85 50 66.7 58.8 7.9 112 92 28
25 116 37.5 35.4 60.3 39.7 - 11.1 20.6 44.5 49.2 102 59.5 79.4 73 6.4 122 102 38
32 145 33 29.8 84.2 59.5 42.1 16.7 24.6 62.7 67.5 120 76 96.8 92.8 3.8 130 110 46

Valve mounting screws (separate order)

Version

Quantity

Hexagon socket head cap screws

Material number

"10"

4

ISO 4762 - M10 x 50 - 10.9-flZn/nc/480h/C

(Friction coefficient μtotal = 0.09 … 0.14)

Tightening torque MA = 60 Nm

R913015580

"20"

4

ISO 4762 - M10 x 60 - 10.9-flZn/nc/480h/C

(Friction coefficient μtotal = 0.09 … 0.14)

Tightening torque MA = 60 Nm

R913014770

"30"

6

ISO 4762 - M10 x 70 - 10.9-flZn/nc/480h/C

(Friction coefficient μtotal = 0.09 … 0.14)

Tightening torque MA = 60 Nm

R913014772

Subplates (separate order) with porting pattern according to ISO 5783, see data sheet 45100.

 

 

Notice:

The dimensions are nominal dimensions which are subject to tolerances.

Installation bore

Dimensions in mm

1

Notice:

Bore Ø32 can cut into Ø45 at any position. However, it must be observed that the connection bores and valve mounting bore are not damaged.

2

Support ring and seal rings are to be inserted into this bore before assembly of the main spool!

3

Nozzle, separate order



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