PRESSURE SEQUENCE VALVES, DIRECT OPERATED

DZ 6 DP

Material #: R900930570

Model : DZ6DP2-5X/315YM/12

For subplate mounting Porting pattern according to DIN 24340 form A (without locating hole), (standard) Porting pattern according to ISO 4401-03-02-0-94 (with locating hole), (ordering information .../60) Subplates (separate order) 5 pressure ratings 4 optional adjustment types:• Rotary knob• Threaded pin with hexagon and protective cap• Lockable rotary knob with scale• Rotary knob with scale Check valve, optional

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For subplate mounting Porting pattern according to DIN 24340 form A (without locating hole), (standard) Porting pattern according to ISO 4401-03-02-0-94 (with locating hole), (ordering information .../60) Subplates (separate order) 5 pressure ratings 4 optional adjustment types:• Rotary knob• Threaded pin with hexagon and protective cap• Lockable rotary knob with scale• Rotary knob with scale Check valve, optional

Valve type DZ 6 DP is a direct operated pressure sequence valve. It is applied for pressure-dependent connection of a second system. The sequencing pressure is set via the adjustment type (4).

The compression spring (3) holds the control spool (2) in initial position, the valve is blocked. The pressure in channel P is applied via the control line (6) at the spool face of the control spool (2) opposite the compression spring (3).

If the pressure in channel P reaches the set value of the compression spring (3), the control spool (2) is moved to the left and the connection from P to A is opened. The system connected to channel A is connected without a pressure drop in channel P.

The control signal is received internally via the control line (6) from channel P or externally via port B (X).

Depending on the use of the valve, leakage oil discharge is realized externally via port T (Y) or internally via A.

Attention!

With internal leakage oil discharge, the set cracking pressure is increased by the pressure in channel A.

A check valve (5) can be optionally installed for free hydraulic fluid return flow back from channel A to channel P.

A pressure gauge connection (1) enables control of the sequencing pressure at the valve.

Type DZ 6 DP1–5X/…

Type DZ 6 DP1–5X/.XYM…

01

02

03

04

05

06

07

08

09

DZ 6 DP

5X

/

*

01

Pressure sequence valve NG6, direct operated

DZ 6 DP

Adjustment type

02

Rotary knob

1

Grub screw with hexagon and protective cap

2

Lockable rotary knob with scale

1)

3

Rotary knob with scale

7

03

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

5X

04

Maximum sequencing pressure 25 bar

25

Maximum sequencing pressure 75 bar

75

Maximum sequencing pressure 150 bar

150

Maximum sequencing pressure 210 bar

210

Maximum sequencing pressure 315 bar

3152)

05

Internal pilot oil supply, internal leakage oil discharge

no code

External pilot oil supply, internal leakage oil discharge

X

Internal pilot oil supply, external leakage oil discharge

Y

External pilot oil supply, external leakage oil discharge

XY

06

With check valve

no code

Without check valve

M

Seal material

07

NBR seals

no code

FKM seals (other seals upon request)

V

Observe compatibility of seals with hydraulic fluid used.

08

Without locating hole

no code

With locating hole

/603)

09

Further details in the plain text

*

1) H-key with material no. R900008158 is included in the scope of delivery.
2) Only with adjustment type "2" and without check valve
3) Locking pin ISO 8752-3x8-St, material no. R900005694 (separate order)

general

Size

6

Weight (approx.)

kg

1.2

Installation position

any

Ambient temperature range

NBR seals

°C

-30 … +80

FKM seals

°C

-20 … +80

hydraulic

Size

6

Maximum operating pressure

Port P

bar

315

Anschluss A

bar

315

Port B (X)

bar

315

Port T (Y)

bar

160

Maximum sequencing pressure

adjustable

bar

25
75
150
210
315

Maximum flow

l/min

60

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 oil

HL, HLP

FKM, NBR

DIN 51524 1)

Bio-degradable

Insoluble in water

HEES (synthetic esters)

2)​

FKM

VDMA 24568

HETG (rape seed oil)

1)

FKM, NBR

Soluble in water

HEPG (polyglycols)

2)

FKM

VDMA 24568

Other hydraulic fluids on request

1) suitable for NBR and FKM seals
2) suitable for FKM seals only

For applications outside these parameters, please consult us!

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

Δp-qV characteristic curves

Δp-qV characteristic curves

The characteristic curves apply for outlet pressure = zero in the entire flow range!

Version "no code"

Version “X"

Version “Y”

Version “XY"

Dimensions in mm

1

Name plate

2

Adjustment type "1"

3

Adjustment type "2"

4

Adjustment type "3"

5

Adjustment type "7"

6

Dimensions required to remove the key

7

Valve mounting bores

8

Lock nut SW24

9

Hexagon SW10

10

Identical seal rings for ports A, B(X), P, T(Y)

11

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

12

Without check valve

13

With check valve

14

Porting pattern according to DIN 24340 form A (without locating hole), or ISO 4401-03-02-0-05 (with locating hole for locking pin ISO 8752-3x8-St, material no. R900005694, separate order)

Subplates (separate order)

(without locating hole)

G 341/01 (G1/4)

G 342/01 (G3/8)

G 502/01 (G1/2)

(with locating hole)

G 341/60 (G1/4)

G 342/60 (G3/8)

G 502/60 (G1/2)

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M5 x 50 - 10.9-flZn-240h-L

Friction coefficient µtotal = 0.09 to 0.14,

Tightening torque MA = 7 Nm ± 10 %,

material no. R913000064

Pipe thread (G..) according to ISO 228/1