Proportional Valve

Direct-Operated Proportional DC Valve Series D1FT

Catalogue HY11-2500/UK

Characteristics The D1FT directional control valve of the nominal size NG6 (CETOP 3) is a proportional valve providing variable flow rates. This valve is used with integrated control electronics. Typical applications are soft switching via adjustable ramps for the reduction of hydraulic and mechanical shocks, and electrically adjustable flow rates / speeds for automating machine functions.

Technical features • Integrated control electronics with ramp adjustment • Progressive flow characteristics for sensitive adjustment of flow rate • Spring centred spool • Manual override

3

D1FT

D1FT.PMD CM

3-23

Parker Hannifin GmbH & Co. KG Hydraulic Controls Division Kaarst, Germany

Direct-Operated Proportional DC Valve Series D1FT

Catalogue HY11-2500/UK

Ordering Code

D

1

F

Nominal size NG06 / CETOP 3

3

Spool type

N Spool type

Flow control

DC valve

Code

T

DC valve

Style

(with integr. electronics)

7.5 15 20

E02C E02F E02H

7.5 15 20

0

Valve Electronic accessories design Seal Electronic Design NBR accessories series (different seal compound on request)

Flow [l/min] at ∆p 5bar per metering edge

E01C E01F E01H

0

Code

Voltage

F

Voltage input 0...±10V with reference output +10V / -10V

G

Current input 0...±20mA

Code

Style

QB = QA /2

B31F

15 / 7.5

C

QB = QA /2

B32F

15 / 7.5 E

K

Please order plugs separately. See chapter 3 accessories.

D1FT.PMD CM

3-24

Parker Hannifin GmbH & Co. KG Hydraulic Controls Division Kaarst, Germany

Direct-Operated Proportional DC Valve Series D1FT

Catalogue HY11-2500/UK

Technical Data General Design

Direct-operated DC Valve with onboard electronics

Actuation

Proportional solenoid

Size

NG6 (CETOP 3)

Mounting interface

DIN 24340 / ISO 4401 / CETOP RP121 / NFPA

Mounting position

Any

Ambient temperature

[°C]

-20...+60

Weight

[kg]

1.9

Hydraulic Max. operating pressure

[bar]

Fluid Fluid temperature

[°C]

Viscosity permitted

[mm2/s]

Viscosity recommended

[mm2/s]

Filtration Flow nominal

Ports P, A, B, T, X max. 350; Port Y max. 50 Hydraulic oil as per DIN 51524...535, other on request -20...+60 20...380 30...80 ISO 4406 (1999)

1)

Leakage at 100 bar

[l/min] [ml/min]

3

18/16/13 (acc. NAS 1683: 7)

20 <200

Static / Dynamic Step response at 100% step

[ms]

90

[%]

<8

[%]

100

Supply voltage/ripple

[V]

14.5 ... 30, ripple <5% eff.

Current consumption max.

[A]

2.8

Hysteresis Electrical characteristics Duty ratio Protection class

IP54

Input signal 2) Voltage Impedance Current Impedance

[V] [kOhm] [mA] [Ohm]

Differential input max.

[V]

Ramp

[s]

0...3

Pre-fusing

[A]

6.3 medium lag

10...0...-10, ripple <0.01% eff., surge free, 0...+10V P->A 100 20...0...-20, ripple <0.01% eff., surge free, 0...+20mA P->A 500 30 for terminal D and E against PE

EMC

EN 50081-1 / EN50082-2

Coil insulation class

F (155 °C)

Electrical connection Wiring min. Wiring lenght max.

6+PE acc. DIN 43563 [mm²] [m]

1)

Flow rate for different ∆p per control edge:

2)

Inverse polarity on request

7x1.0 (AWG 18) overall braid shield 50 Qx = QNom. ·

√

∆px ∆pNom.

D1FT.PMD CM

3-25

Parker Hannifin GmbH & Co. KG Hydraulic Controls Division Kaarst, Germany

Direct-Operated Proportional DC Valve Series D1FT

Catalogue HY11-2500/UK

Electronics Block diagram

3

Arrangement of the potentiometers

Central connector 6 + PE A

= supply (14.5...30 VDC)

B

= GND (0V)

C

= ref. +10 VDC

D

= input

E

= input

F

= ref. -10 VDC

(-10...+10 VDC) (-20...+20 mA)

G = PE

D1FT.PMD CM

3-26

Parker Hannifin GmbH & Co. KG Hydraulic Controls Division Kaarst, Germany

Catalogue HY11-2500/UK

Characteristic Curves

Direct-Operated Proportional DC Valve Series D1FT

Flow characteristics Spool code E* at ∆p 5bar per metering edge

3 Spool code B*

Flow limit 100% command signal

D1FT.PMD CM

3-27

Parker Hannifin GmbH & Co. KG Hydraulic Controls Division Kaarst, Germany

Direct-Operated Proportional DC Valve Series D1FT

Catalogue HY11-2500/UK

Dimensions

3

Surface finish

NBR BK375

4x M5x30 DIN 912 12.9

8.1 Nm

SK-D1FT-N30

D1FT.PMD CM

3-28

Parker Hannifin GmbH & Co. KG Hydraulic Controls Division Kaarst, Germany