pressure reducing valve, pilot operated pdfs/brh std valves/pressure/rexroth dr... · type dr...

Electric Drivesand Controls Hydraulics

Linear Motion andAssembly Technologies Pneumatics Service

1/10

Table of contents

Contents Page

Features 1

Ordering details 2

Standard types 2

Functional description, cross-section 3

Symbols 3

Technical data 4

Characteristic curves 5, 6

Performance limits 5

Unit dimensions 7 to 9

RA 26892/02.03

Replaces: 06.98

Features

– Mounts on standard ISO 5781-06, 08 or 10, NFPA/ANSI

P 06, P 08 or P 10 interfaces

– For threaded connections

– For manifold mounting

– Four adjustment elements:

• Rotary knob

• Sleeve with hexagon and protective cap

• Lockable rotary knob with scale

• Rotary knob with scale

– Five pressure stages

– Check valve, optional (only for subplate mounting valves).

Pressure reducing valve,

pilot operated

Nominal sizes 10 to 32Series 5XMaximum operating pressure 350 bar (5000 PSI)Maximum flow 400 L/min (105 GPM)

Model DR

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2/10 Bosch Rexroth Corp. | Industrial Hydraulics DR | RA 26892/02.03

DR – 5X / Y *

Pilot operated valve


without main spool insert

(do not enter nom. size)


with main spool insert

(enter valve size 30)

= No code

= C

= C

Nom.

size

Valve for

Subplate

mounting

“–”

Threaded

connections

“G”

Ordering details

10 = 10 = 10 (G 1/2)

16 = 15 (G 3/4)

25 = 20 = 20 (G 1)

25 = 25 (G 1-1/4)

32 = 30 = 30 (G 1-1/2)

For subplate mounting

For threaded connections

= –

= G

Adjustment element

Rotary knob

Sleeve with hexagon and protective cap

Lockable rotary knob with scale

Rotary knob with scale

= 4

= 5

= 6 1)

= 7

Ordering details

Further details in clear text

Thread for “X” and “Y” port

No code =

12 =

BSP threaded port

SAE threaded port

No code =

V =

NBR seals

FKM seals

(other seals on request)

Attention!

The compatibility of the seals and

pressure fl uid has to be taken into account!

No code 3) =

M =

With check valve

Without check valve

Y =

Pilot oil supply

Internal pilot oil supply,

external pilot oil drain

50 =

100 =

200 =

315 =

350 2) =

Settable pressure up to 50 bar (725 PSI)





5X = Series 50 to 59

(50 to 59: unchanged installation and connection dimensions)

1) H-key to Material No. R900008158 is included within the scope of supply2) Only possible for version without check valve3) Only available as pilot operated valve for subplate mounting

Standard types

Type Material number

DR 10 -5-5X/100Y R900596766

DR 10 -5-5X/200Y R900503741

DR 10 -5-5X/315Y R900596883

DR 20 -5-5X/100Y R900597198

DR 20 -5-5X/200Y R900597892

DR 20 -5-5X/315Y R900597048

DR 30 -5-5X/100Y R900596339

DR 30 -5-5X/200Y R900596500

DR 30 -5-5X/315Y R900596928

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RA 26892/02.03 | DR Industrial Hydraulics | Bosch Rexroth Corp. 3/10

a a

A B Y

5

1

438

7

17

2

9 10 6 11 14

12

13

15

AB

16

B

A Y

B

A Y

Functional description, cross-section

Symbols

Type DR pressure valves are pilot operated pressure reducing

valves, which are controlled from the secondary circuit.

They basically consist of main valve (1) with main spool insert

(3) and pilot control valve (2) with pressure adjustment element.

At rest, the valves are open, this means that fl uid can freely

pass from port B, to port A via the main spool insert (3).

Pressure present in port A acts on the under side of the main

spool. At the same time there is pressure acting on the ball (6)

in the pilot control valve (2) via the orifi ce (4) on the spring-

loaded side of the main spool (3) and via port (5). This pressure

also acts on the ball (6), via the orifi ce (7), control line (8),

check valve (9) and orifi ce (10). Depending on the setting of

spring (11), pressure builds up in front of the ball (6), in port (5)

and in spring chamber (12), which holds the control spool (13)

in the open position. Pressure fl uid can freely fl ow from port

B to port A via mian spool insert (3) until the pressure in port

A exceeds the value set at spring (11) and opens the ball (6).

The control spool (13) moves to the closed position.

The desired reduced pressure is achieved, when a balance

between the pressure in port A and the pressure set at spring

(11) is reached.

Pilot oil drain from spring chamber (14) to tank always takes

place externally via control line (15).

Free return fl ow from port A to port B can be achieved by

installing an optional check valve (16).

A pressure gauge connection (17) allows the reduced

pressure in port A to be monitored.

Type DR..-.-5X/...YM.. Type DR..-.-5X/...Y.. (only for subplate mounting)

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

Without

check valve

With

check valve

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General

Installation Optional

Ambient temperature range °C (°F) – 30 to + 50 for NBR seals

°C (°F) – 20 to + 50 for FKM seals

Weight DR 10 DR 16 DR 20 DR 25 DR 32

Subplate mounting DR… kg (lbs) 3.4 (7.5) – 5.3 (11.7) – 8.0 (17.7)

DRC… kg (lbs) 1.2 (2.7)

DRC 30… kg (lbs) 1.5 (3.3)

Threaded connections DR..G… kg (lbs) 5.3 (11.7) 5.2 (11.5) 5.1 (11.3) 5.0 (11) 4.8 (10.6)

Technical data (for applications outside these parameters, please consult us!)

1) 350 bar (5000 PSI) only possible for version without check valve2) Suitable for NBR and FKM seals3) Only suitable for FKM seals4) The cleanliness class stated for the components must be

adhered to in hydraulic systems. Effective fi ltration

prevents faults from occurring and at the same time increases

the component service life.

For the selection of fi lters see catalogue sheets RE 50 070,

RE 50 076 and RE 50 081.

Hydraulic

Nominal pressure bar (PSI) 350 (5000) 1)

Maximum operating pressure at port B bar (PSI) 350 (5000) 1)

Operating pressure range at port A bar (PSI) 10 to 350 ( 145 to 5000) 1)

Maximum back pressure at port Y bar (PSI) 350 (5000) 1)

Settable pressure Minimum bar (PSI) Flow related (see characteristic curves on page 5)

Maximum bar (PSI) 50; 100; 200; 315; 350 (725; 1450; 2900; 4600; 5000 1)

Maximum fl ow DR 10 DR 16 DR 20 DR 25 DR 32

Subplate mounting L/min (GPM) 150 (39.6) – 300 (79.2) – 400 (105.7)

Threaded connections L/min (GPM) 150 (39.6) 300 (79.2) 300 (79.2) 400 (105.7) 400 (105.7)

Pressure fl uid Mineral oil (HL, HLP) to DIN 51 524 2);

Fast bio-degradable pressure fl uids is to

VDMA 24 568 (also see RE 90 221); HETG (rape seed oil) 2);

HEPG (polyglycols) 3); HEES (synthetic ester) 3);

Other pressure fl uids on request

Pressure fl uid temperature range °C (°F) – 30 to + 80 for NBR seals

°C (°F) – 20 to + 80 for FKM seals

Viscosity range mm2/s (SUS) 10 to 800

Cleanliness class to ISO code Maximum permissible degree of contamination of the pressure

fl uid is to ISO 4406 (C) class 20/18/15 4)

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0 50 100 150 250 400300200 350

1 2

3

pA min

NS 10 NS 25

NS 32

(13.2) (26.4) (39.6) (52.8) (66) (79.2) (92.4) (105.6)

2

4

8

10

14

6

16

12

(29)

(58)

(87)

(116)

(145)

(174)

(203)

(232)

0 50 100 150 250 400

50 (725)

100 (1450)

200 (2900)

250 (3626)

300 (4351)

150 (2175)

300

350 (5076)

200 350

315 (4568)

(13.2) (26.4) (39.6) (52.8) (66) (79.2) (92.4) (105.6)

NS 10 NS 25 NS 32

0 50 100 150 250 400300200 350

NS 10 NS 25 NS 32

(13.2) (26.4) (39.6) (52.8) (66) (79.2) (92.4) (105.6)

2

4

8

10

14

6

12

(29)

(58)

(87)

(116)

(145)

(174)

(203)

Outlet pressure pA in relation to the fl ow q

V (B to A)

Flow in L/min (GPM) →

Outlet

pre

ssure

in b

ar

(PS

I) →

Red

uced

pre

ssure

in b

ar

(PS

I) →

Pre

ssure

diffe

rential in

bar

(PS

I) →

Δp-qV-characteristic curves (B to A; lowest settable pressure differential)

Minimum settable pressure at pA min

in relation to the fl ow qV (B to A)

Performance limit

(dependent on system)

1 = NS 10

2 = NS 25

3 = NS 30

Characteristic curves – measured with HLP46, ϑoil

= 40 °C ± 5 °C (104 °F ±41 °F)



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0 50 100 150 250 400

0.5 (7.25)

1.0 (14.5)

300200 350

1.5 (21.7)

Δp = 50 bar (725 PSI)

Δp = 200 bar (2900 PSI)

(13.2) (26.4) (39.6) (52.8) (66) (79.2) (92.4) (105.6)

NS 10 NS 25

NS 32

0 50 100 150 250 400

10 (145)

20 (290)

300200 350

30 (435)

15 (217)

25 (362)

5 (72)

(13.2) (26.4) (39.6) (52.8) (66) (79.2) (92.4) (105.6)

NS 10 NS 25 NS 32

Control fl ow in relation to the fl ow (B to A) and to the pressure differential

Δp-qV-characteristic curves via the check valve (A to B)

Contr

ol fl ow

in L

/min

(G

PM

) →

Pre

ssure

diffe

rential in

bar

(PS

I) →

Flow resistance via check valve, the main stage closed

Flow resistance via check valve with the main stage fully open



Characteristic curves (measured with HLP46, ϑoil

= 40 °C ± 5 °C (104 °F ±41 °F)

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Ø 3

2 (

1.2

6)

49 (1.929)

Ø 3

5 (1.3

8)

3

8

29

0

1

110 (4.33)

118 (4.64)

145 (5.71)

169 (6.65) 18 (0.7)

5 (0.196)

H1

20

(0

.78

7)

2 (

0.0

8)

B1

B3

A

Y

Y

H2

H3

5 (

0.1

96

)

Ø 6 (0.236)

L6

L5

L4

L3

L2

5 (0.196) L1

B2

B4

B5

2

9

L8

L7

L9

L10

X

A B

Y

Ø 11 (0.433)

16

(0

.62

9)

5 (0.196)

G 1/4; 12

Ø 3

9.5

(1.5

5)

5 8 4 6; 7 9

2.2

11

2.1

11

10

3 1

12

13

(SAE-4; 7/16-20; 0.47)

0.0004/4.0 in

0.01/100 mm

(Rmax 4)

Unit dimensions: subplate mounting – dimensions in millimeters (inches)

1 Name plate

2.1 Port Y for external pilot oil drain

2.2 Port Y optional for external pilot oil drain G 1/2; 12 (SAE-4; 7/16-20; 0.47) 3 Port X without function (blind bore) 4 Adjustment element “4”

5 Adjustment element “5”



8 Hexagon 10A/F

9 Space required to remove key

10 Locating pin

11 4 valve fi xing holes for DR 10 and 20 6 valve fi xing holes for DR 30

12 Pressure gauge connection

13 Same seal rings for ports A and B, same seal rings for ports X and Y

Subplates to catalogue sheet RE 45 062 andvalve fi xing screws must be ordered separately.

Subplates for:DR 10 G 460/01(/12), G 3/8 (SAE-6; 9/16-18) G 461/01(/12), G 1/2 (SAE-8; 3/4-16)DR 20 G 412/01(/12), G 3/4 (SAE-12; 1-1/16-12) G 413/01(/12), G 1 (SAE-16; 1-5/16-20)DR 30 G 414/01(/12), G 1-1/4 (SAE-20; 1-5/8-12) G 415/01(/12), G 1-1/2 (SAE-24; 2-1/2-12)

Valve fi xing screws for:

DR 10 4 of M10 x 50 DIN 912-10.9 (3/8-16 UNC x 2”); M

A = 75 Nm (55 lbs)

DR 20 4 of M10 x 60 DIN 912-10.9 (3/8-16 UNC x 2-1/4”);M

A = 75 Nm (55 lbs)

DR 30 6 of M10 x 70 DIN 912-10.9 (3/8-16 UNC x 2-3/4”); M

A = 75 Nm (55 lbs)

Required surface fi nish of

mating piece

Type L1 L2 L3 L4 L5 L6 L7 L8 L9 L10 B1 B2 B3 B4 B5 H1 H2 H3

DR 10 96

(3.78)

35.5

(1.40)

33

(1.30)

42.9

(1.69)

21.5

(0.85)

– 7.2

(0.28)

21.5

(0.85)

31.8

(1.25)

35.8

(1.41)

85

(3.35)

50

(1.97)

66.7

(2.63)

58.8

(2.32)

7.9

(0.31)

112

(4.41)

92

(3.62)

28

(1.10)

DR 20 116

(4.57)

37.5

(1.48)

35.4

(1.39)

60.3

(2.37)

39.7

(1.56)

– 11.1

(0.44)

20.6

(0.81)

44.5

(1.75)

49.2

(1.93)

102

(4.02)

59.5

(2.34)

79.4

(3.13)

73.0

(2.87)

6.4

(0.25)

122

(4.80)

102

(4.02)

38

(1.50)

DR 30 145

(5.71)

33

(1.30)

29.8

(1.17)

84.2

(3.32)

59.5

(2.34)

42.1

(1.65)

16.7

(0.66)

24.6

(0.97)

62.7

(2.47)

67.5

(2.66)

120

(4.72)

76

(2.99)

96.8

(3.81)

92.8

(3.65)

3.8

(0.15)

130

(5.12)

110

(4.33)

46

(1.81)

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90 (3.543)

Ø 3

2 (

1.2

6)

49 (1.929)

Ø 3

5 (

1.3

8)

3

8

9

0

1

110 (4.33)

118 (4.64)

145 (5.71)

169 (6.65) 18 (0.7)

5 (0.196)

44

(1

.73

2)

13

4 (

5.2

76

)

20

(0

.78

7)

11

4 (

4.4

88

)

D1

Y

2 (

0.0

8)

T1

1

(0

.03

9)

47

(1

.85

0)

56

(2

.20

5)

72 (2.835)

T1 1 (0.039)

D1

5 (0.196) 17 (0.669)

80

Ø 7

2

B

A

11

Ø 25 (0.984)

G 1/4; 12

5.5 (0.216)

Ø D2

Ø D

2

Ø 3

9.5

(1.5

5)

2

5 8 4 6; 7 9 2.1

12

11

1

G 1/4; 12

(SAE-4; 7/16-20; 0.47)

Type D1 ØD2 T1

DR 10 G G 1/2

(SAE-8; 3/4-16)

34 14

DR 15 G G 3/4

(SAE-12; 1-1/16-12)

42 16

DR 20 G G 1

(SAE-16; 1-5/16-20)

47 18

DR 25 G G 1-1/4

(SAE-20; 1-5/8-12)

58 20

DR 30 G G 1-1/2

(SAE-24; 1-7/8-12)

65 22

Unit dimensions: threaded connections – dimensions in millimeters (inches)

1 Name plate

2.1 Port Y for external pilot oil drain





8 Hexagon 10A/F

9 Space required to remove key

11 Valve fi xing hole

12 Pressure gauge connection

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Ø3

2(1

26

)

49 (1.929)

Ø 3

5 (1.3

8)

3

8

29

0

1

110 (4.33)

118 (4.64)

145 (5.71)

169 (6.65) 18 (0.7)

5 (0.196)

20

(0

.78

7)

Y

2 (

0.0

8)

40

(1

.57

5)

29

(1

.14

2)

61 (2.401)

28 (1.102)

32

(1

.26

)

37.5 (1.476)

6 (0.236)

51 (2.007) 11.5 (0.452)

35 (1.38)

44

(1

.73

2)

29

(1

.14

2)

31

(1

.22

)

4

X Y

Ø 8.4 (0.33)

Ø 3

9.5

(1.5

5)

5 8 4 6; 7 9

20

21

18

19

14

15

22

2.2

11

2.1 1

G 1/4; 12(SAE-4; 7/16-20; 0.47)

Ø 45 (1.771)

2)

30

° 2

5.5

(1

.00

4)

(0.6

69

) 1

7

(1.3

38

) 3

4

Ø 3

2 (

1.2

6)

Ø 1

.65

4 +

0.0

04

+

0.0

02

4

2 +

0.1

+

0.0

5

(0.0008)0.02

A

Ø (0.976 +0.008 24.8 +0.2

Ø 32 (1.260)

Ø 6 (0.236)

M4; 6 (0.24) deep

2)

45

° 2

) 4

5 °

max.R 0.03 (0.011)

Z

X

0.0

00

4/4

in

0

.01

/1

00

mm

A

X Y

A

B

Y

(0.003) 0.008

Z

Y

Ø

(0.002) 0.05

B

Z

B

Ø 0.157 (4) Ø 4 (0157)

Ø 18 (0.709)

55

(1

.88

9)

Ø

(1.5

75

+0

.00

4

40

+0

.1

)

2.0

27

± 0.0

04

(5

1.5

± 0.1

)

(1.122 +0.004 28.5 +0.1 )

Ø32 +0.001 –0.0 (1.260 +0.025 )

–0.0

“Z”

1.024 ± 0.008 26 ± 0.2 ) ( 1.142 ± 0.008 29 ± 0.2 ) (

)

44

(1

.73

2)

32

(1

.26

)

51 (2.007)

16 (0.629)

X Y

4 x M8;

12 (0.47)

61 (2.401)

=Y

=ZR

z 16

Rz 8

=XR

max 4

Unit dimensions: pilot valve with (DRC 30) or without (DRC) main spool insert –

dimensions in mm (inches)

1 Name plate

2.1 Port Y for external pilot

oil drain

2.2 Port Y optional for

external pilot oil drain


5 Adjustment element

“5”


“6”


“7”

8 Hexagon 10A/F

9 Space required to

remove key

11 Valve fi xing holes

14 Seal rings

15 Main spool insert

16 Hole Ø 32 can meet hole

Ø 45 at any point. Care

however has to be taken

that the connection hole

X and the fi xing holes are

not damaged

17 Back-up ring and seal

rings are to be inserted

into this cavity before fi t-

ting the main spool

18 Seal ring

19 Seal ring

20 Seal ring

21 Back-up ring

22 Back-up ring

23 Orifi ce must be ordered

separately

4 of valve fi xing screws M8 x 40 DIN 912-10.9

(5/16-18 UNC x 1-1/2“), MA = 37 Nm (27.3 lb-ft)

Must be ordered separately

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Notes

Bosch Rexroth Corp.

Industrial Hydraulics

2315 City Line Road

Bethlehem, PA 18017-2131

USA

Telephone (610) 684-8300

Facsimile (610) 694-8467

www.boschrexroth-us.com

© 2004 Bosch Rexroth Corporation

All rights reserved. Neither this document nor any part of it may be reproduced,

duplicated circulated or disseminated, whether by copy, electronic format or

any other means, without the prior consent and authorization of Bosch Rexroth

Cor po ra tion.

The data and illustrations in this brochure/data sheet are intended only to

describe or depict the products. No representation or warranty, either express

or implied, relating to merchantability or fi tness for intended use, is given or

intended by virtue of the information contained in this brochure/data sheet. The

information contained in this brochure/data sheet in no way relieves the user of it

obligation to insure the proper use of the products for a specifi c use or applica-

tion. All products contained in this brochure/data sheet are subject to normal

wear and tear from usage.

Subject to change.

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RA 26892/02.03 | DR Industrial Hydraulics | Bosch Rexroth Corp.

Bosch Rexroth Corp.


2315 City Line Road


USA

Telephone (610) 684-8300

Facsimile (610) 694-8467


© This document, as well as the data, specifi cations and other

information set forth in it, are the exclusive property of Bosch Rexroth

Corporation. Without their consent it may not be reproduced or given to

third parties.

The data specifi ed above only serve to describe the product. No

statements concerning a certain condition or suitability for a certain

application can be derived from our information. The information given

does not release the user from the obligation of own judgment and

verifi cation. It must be remembered that our products are subject to a

natural process of wear and aging.

Cou

rtes

y of

CM

A/F

lody

ne/H

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dyne

▪ M

otio

n Con

trol

▪ H

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ulic

▪ P

neum

atic

▪ E

lect

rica

l ▪ M

echa

nica

l ▪ (

800)

426

-548

0 ▪

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w.c

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Bosch Rexroth Corp. | Industrial Hydraulics DR | RA 26892/02.03

Bosch Rexroth Corp.


2315 City Line Road


USA

Telephone (610) 684-8300

Facsimile (610) 694-8467


© This document, as well as the data, specifi cations and other

information set forth in it, are the exclusive property of Bosch Rexroth

Corporation. Without their consent it may not be reproduced or given to

third parties.

The data specifi ed above only serve to describe the product. No

statements concerning a certain condition or suitability for a certain

application can be derived from our information. The information given

does not release the user from the obligation of own judgment and

verifi cation. It must be remembered that our products are subject to a

natural process of wear and aging.

Cou

rtes

y of

CM

A/F

lody

ne/H

ydra

dyne

▪ M

otio

n Con

trol

▪ H

ydra

ulic

▪ P

neum

atic

▪ E

lect

rica

l ▪ M

echa

nica

l ▪ (

800)

426

-548

0 ▪

ww

w.c

maf

h.co

m

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