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BOSCH REXROTH
DZ30-2-5X/315XYM/12
R978870365
Pressure Sequence Valves

Pressure valves: DZ,DZW 30.-5x/

$1,608.00

BOSCH REXROTH

MATERIAL:  R978870365

SUMMARY:  Pressure valves: DZ,DZW 30.-5x/

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The valve type DZ is a pilot-operated pressure sequence valve.

It is applied for pressure-dependent connection of a second system.

The pressure sequence valve basically consists of main valve (1) with main spool insert (7) and pilot control valve (2) with adjustment type and optional check valve (3).

According to the pilot oil supply and return and the respective function, the following differentiation is made:

Preload valve type DZ. . -.-5X/… (control lines 4.1, 12 and 13 open; control lines 4.2, 14 and 15 closed)

The pressure applied in channel A acts via the control line (4.1) on the pilot spool (5) in the pilot control valve (2). Simultaneously, the pressure in channel A acts via the nozzle (6) on the spring-loaded side of the main spool (7). If the pressure in channel P exceeds the value set at the spring (8), the pilot spool (5) is moved against the spring (8). The hydraulic fluid on the spring-loaded side of the main spool (7) now flows via the nozzle (9), the control edge (10) and control lines (11) and (12) into channel B. Due to this, a pressure drop occurs at the main spool (7). The main spool (7) is moved upwards and opens the connections from channel A to B. The pressure in channel A exceeds the value in channel B by the value set at the spring (8). The leakage occurring at the pilot spool (5) is directed internally via the spring chamber (17) of the pilot control valve and the control line (13) into channel B. If the pressure in the secondary circuit (channel B) exceeds the pressure in channel A, a check valve (3) may be optionally installed for free return flow.

Preload valve type DZ. . -.-5X/.X… (control lines 4.2, 12 and 13 open; control lines 4.1, 14 and 15 closed)

In principle, the function of this valve corresponds to the function of type DZ. . -.-5X/…. With version "X", however, the opening signal is received externally via control line X (4.2).

Sequence valve type DZ. . -.-5X/.Y… (control lines 4.1, 12 and 14 or 15 open; control lines 4.2 and 13 closed)

In principle, the function of this valve corresponds to the function of type DZ. . -.-5X/…. At version "Y", however, the leakage occurring at the pilot spool (5) has to be directed via line (14) or (15) to the tank by means of a depressurized connection. The pilot oil is directed via line (11) and (12) into channel B.

Circulation valve type DZ. . -.-5X/.XY… (control lines 4.2, 14 or 15 open; control lines 4.1, 12 and 13 closed)

In principle, the function of this valve corresponds to the function of type DZ. . -.-5X/…. With version "XY", however, the opening signal is received externally via control line X (4.2). The pilot oil at the pilot spool (16) bore and occurring leakage have to be directed via line (14) or (15) to the tank by means of a depressurized connection.

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

01

02

03

04

05

06

07

08

09

10

DZ

5X

/

*

01

Pressure sequence valve, pilot-operated

DZ

02

Valve complete (subplate mounting)

no code

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

C

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

C

03

Size 10

10

Size 25

20

Size 32

30

Adjustment type

04

Rotary knob

1

Sleeve with hexagon and protective cap

2

Lockable rotary knob with scale

3 1)

Rotary knob with scale

7

05

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

5X

Set pressure

06

50 bar

50

100 bar

100

200 bar

200

315 bar

315

Pilot oil supply

07

Pilot oil supply internal, pilot oil return internal

no code

External pilot oil supply, internal pilot oil return

2)

X

Internal pilot oil supply, external pilot oil return

2)

Y

External pilot oil supply, external pilot oil return (see symbols)

XY

08

With check valve

2)

no code

Without check valve

M

Seal material

09

NBR seals

no code

FKM seals (other seals upon request)

V

Observe compatibility of seals with hydraulic fluid used.

10

Further details in the plain text

*

1) H-key with material no. R900008158 is included in the scope of delivery.
2) Not with version "C"

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

hydraulic

Size

10 25 32

Maximum operating pressure

Anschluss A

bar

315

Port B

bar

315

Port X

bar

315

Maximum counter pressure

Port Y

bar

315

Minimum set pressure

flow-dependent, see characteristic curves

Maximum set pressure

bar

50
100
200
315

Maximum flow

l/min

200 400 600

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 and related hydrocarbons

HL, HLP, HLPD

NBR, FKM

DIN 51524

Environmentally compatible

Insoluble in water

HETG

NBR, FKM

 

ISO 15380

HEES

FKM

Soluble in water

HEPG

FKM

 

ISO 15380

Containing water

Water-free

HFDU, HFDR

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.)!

Flame-resistant – containing water:

Maximum operating pressure 210 bar Maximum hydraulic fluid temperature 60 °C Expected life cycle as compared to HLP hydraulic oil 30 % to 100 %

general

Size

10 25 32

Weight

Type DZ ...

kg

3.4 5.3 8

Type DZC ...

kg

1.2

Type DZC 30 ...

kg

1.5

Installation position

any

Ambient temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

For applications outside these parameters, please consult us!

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

Inlet pressure dependent on the flow (A → B)

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Minimum inlet pressure 1) dependent on the flow (A → B)

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/
1) Circulation pressure with version "X"

The characteristic curves apply to the pressure at the valve outlet pT = 0 bar across the entire flow range.

Circulation pressure dependent on the flow (A → B) (only version "XY")

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

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

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.M…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.XM…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.YM…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.XYM…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.X…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.Y…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Type DZ. . -.-5X/.XY…

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

Subplate mounting

Dimensions in mm

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

1

Name plate

2.1

Port Y for external pilot oil return at version "XY" or spring chamber discharge at version "Y"

2.2

Port Y (G1/4) optionally for external pilot oil return at version "XY" or spring chamber discharge at version "Y"

4

Adjustment type "1"

5

Adjustment type "2"

6

Adjustment type "3"

7

Adjustment type "7"

8

Hexagon SW10

9

Space required to remove the key

10

Identical seal rings for ports A and B

11

Identical seal rings for ports X, Y, Y1 and Y2

12

Valve mounting bores

13

Locking pin

Cartridge valve

Dimensions in mm

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

1

Name plate

2.2

Port Y (G1/4) optionally for external pilot oil return at version "XY" or spring chamber discharge at version "Y"

3.1

Port Y1 at cartridge valve for pilot oil return at version "XY" or spring chamber discharge at version "no code", "X" and "Y"

3.2

Port Y2 at cartridge valve for pilot oil return at version "no code", "X" and "Y"

4

Adjustment type "1"

5

Adjustment type "2"

6

Adjustment type "3"

7

Adjustment type "7"

8

Hexagon SW10

9

Space required to remove the key

11

Identical seal rings for ports X, Y, Y1 and Y2

12

Valve mounting bores

14

Main spool insert with nozzle

15

Seal ring (main spool)

16

Support ring (main spool)

Installation bore
Dimensions in mm

Dimensions in mm

technical illustration-DZ30-2-5X/315XYM/12-Pressure valves: DZ,DZW 30.-5x/

17

Versions "X" and "XY" without bore

18

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

19

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

Subplates (separate order)

NG10

G 460/01 (G3/8)

G 461/01 (G1/2)

NG25

G 412/01 (G3/4)

G 413/01 (G1)

NG32

G 414/01 (G1 1/4)

G 415/01 (G1 1/2)

 

Valve mounting screws (separate order)

For reasons of stability, exclusively the following valve mounting screws may be used:

Subplate mounting:

NG10

4 x ISO 4762 - M10 x 50 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 60 Nm ±10 %,

material no. R913000471

NG25

4 x ISO 4762 - M10 x 60 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 60 Nm ±10 %,

material no. R913000116

NG32

6 x ISO 4762 - M10 x 70 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 60 Nm ±10 %,

material no. R913000126

Cartridge valve:

4 x ISO 4762 - M8 x 40 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 31 Nm ±10 %,

material no. R913000205

 

The tightening torques are guidelines when using screws with the specified friction coefficients and when using a manual torque wrench (tolerance ±10 %).

NG

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