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BOSCH REXROTH
ZDR10DP2-5X/150YMV
R900431772
Pressure Reducing Valves

Pressure valves: ZDR 10.-5x/

$787.00

BOSCH REXROTH

MATERIAL:  R900431772

SUMMARY:  Pressure valves: ZDR 10.-5x/

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The valve type ZDR is a direct operated pressure reducing valve in sandwich plate design with pressure limitation of the secondary circuit. It is used to reduce the system pressure.

The pressure reducing valve basically comprises housing (1), control spool (2), compression spring (3), adjustment type (4) and an optional check valve.

The secondary pressure is set via the adjustment type (4).

Version “A”

The valve is open in initial position. Hydraulic fluid can flow from channel A➀ to channel A➀ without restrictions. The pressure in channel A➀ is simultaneously applied via the control line (5) at the piston area opposite the compression spring (3). If the pressure in channel A➀ exceeds the value set at the compression spring (3), the control spool (2) is pushed against the compression spring (3) to control position and keeps the set pressure in channel A➀ at a constant level.

Control signal and pilot oil are supplied internally via the control line (5) from channel A➀.

If the pressure in channel A➀ increases further due to an external force effect at the actuator, it pushes the control spool (2) even further against the compression spring (3).

In this way, channel A➀ is connected to the tank (channel TB) via the control edge (6) at the control spool (2) and the housing (1). So much hydraulic fluid is discharged into the tank, that the pressure does not increase any further.

The leakage oil drain from the spring chamber (7) is always effected externally via channel TA.

A pressure gauge connection (8) allows for the control of the secondary pressure at the valve.

A check valve can be used for free flow back from channel A➀ to A➀ with version “A”.

Versions “P” and “B”

For version “P”, the pressure reduction is effected in channel P➀. Control signal and pilot oil are supplied internally from channel P➀.

For version “B”, the pressure is reduced in channel P➀; but the pilot oil is extracted from channel B. If the directional valve is in spool position P to A, the pressure in channel B may not exceed the set secondary pressure. Otherwise, there is pressure reduction in channel A.

Attention!

If used without directional valve, channels TA and TB are connected to each other (e. g. in the cover plate). During set-up of a directional seat valve NG 10, a sandwich plate type HSZ10A078-3X/M00 (material no. R900537264) has to be used.

Type ZDR 10 DA …

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

component side

plate side

01

Sandwich plate valve

Z

02

3-way pressure reducing valve

DR

03

Size 10

10

04

Direct operated

D

05

Pressure reduction in channel A➁

A

Pressure reduction in channel P➁ (pilot oil supply from channel B)

B

Pressure reduction in channel P➁

P

Adjustment type

06

Rotary knob

1

Sleeve with hexagon and protective cap

2

Lockable rotary knob with scale

3 1)

Rotary knob with scale

7

07

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

5X

08

Secondary pressure up to 25 bar

25

Secondary pressure up to 75 bar

75

Secondary pressure up to 150 bar

150

Secondary pressure 210 bar

210

09

Internal pilot oil supply, external pilot oil return

Y

10

With check valve (only version "A")

no code

Without check valve

M

Seal material

11

NBR seals

no code

FKM seals (other seals upon request)

V

Observe compatibility of seals with hydraulic fluid used.

12

Further details in the plain text

*

1) H-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).

Notice!

To port X and Y bored according to ISO 4401-05-05-0-05 (e. g. for pilot-operated directional valve NG 10), version “SO30” applies at the end of the ordering code!

01

02

03

04

05

06

07

08

09

10

11

12

Z

DR

10

D

5X

/

Y

*

general

Size

10

Weight (approx.)

kg

2.8

Installation position

any

Ambient temperature range

NBR seals

°C

-30 … +80

FKM seal

°C

-20 … +80

hydraulic

Size

10

Maximum operating pressure

Inlet

bar

315

Maximum secondary pressure

Outlet

bar

25
75
150
210

Maximum counter pressure

Port T

bar

160

Maximum flow

l/min

80

Hydraulic fluid

see table

Hydraulic fluid temperature range

NBR seals

°C

-30 … +80

FKM seal

°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 %

For applications outside these parameters, please consult us!

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

pA-qV characteristic curves

Version "A"

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

pA-qV characteristic curves

Version “B” and “P”

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Notice!

The curve development is maintained if the pressure is set lower according to the pressure rating.

Δpmin-qV characteristic curves

Version "A"

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Δpmin-qV characteristic curves

Version “B” and “P”

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Δp-qV characteristic curves

Version "A"

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

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

component side

plate side

Type ZDR 10 DP…YM…

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Type ZDR 10 DA…YM…

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Type ZDR 10 DB…YM…

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Type ZDR 10 DA…Y…

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Notice!

Deviating from ISO 4401, port T is referred to as TA and port T1 is referred to as TB in this data sheet.

Dimensions in mm

technical illustration-ZDR10DP2-5X/150YMV-Pressure valves: ZDR 10.-5x/

Version

L1

L2

L3

L4

L5

L6

L7

B1

B2

B3

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

A 254 230 210 104 93 31.5 3.8 32.9 51 12
B, P 242 218 198 91 - 18.5 15.8 35 - -

1

Name plate

2

Adjustment type "1"

3

Adjustment type "2"

4

Adjustment type "3"

5

Adjustment type "7"

6

Space required to remove the key

7

Valve mounting bores

8

Lock nut SW24

9

Hexagon SW10

10

Identical seal rings for ports A, B, P, TA, TB

11

Pressure gauge connection G1/4; 12 mm deep; internal hexagon SW6

component side – Porting pattern according to ISO 4401-05-04-0-05

plate side – Porting pattern according to ISO 4401-05-04-0-05

Valve mounting screws (separate order)

4 hexagon socket head cap screws ISO 4762 - M6 - 10.9

Notices!

Length and tightening torque of the valve mounting screw must be calculated in connection with the components mounted underneath and above the sandwich plate valve. To port X and Y bored according to ISO 4401-05-05-0-05 (e. g. for pilot-operated directional valve NG 10), version “SO30” applies at the end of the ordering code! Deviating from ISO 4401, port T is referred to as TA and port T1 is referred to as TB in this data sheet.