A 004

Parker Hannifin CorporationHydraulic Valve DivisionElyria, Ohio 44035 USA

A10

Series D1FSProportional Directional Control Valves

Technical Information

General Description

The D1FS Series of proportional directional controlvalves provide variable output flow in response tovariable input commands. The valves feature anon–board LVDT to reduce hysteresis. Optimalperformance is realized when the valves are driven bythe AS20 driver board.

Features

• LVDT –– The spool position feedback is locatedbetween the valve body and coil. This feature allowsfor operation of the valve via the manual overrideslocated at the end of each coil.

• Electrical Interface –– The standard connection isa 1/2 NPT NEMA conduit with pigtails for coilconnection, and a four pin MS style connector forthe LVDT.

• Mounting –– The body counterbore depth placesthe heads of the mounting bolts below the spoolcenterline to reduce the chance of spool bindingdue to improper torquing.

Specifications

Interface

Maximum Pressure

Flow

Solenoid

Repeatability

Hysteresis

Nominal Deadband

Operating Temp.

Range (Ambient)

NFPA D03/CETOP 3

345 Bar (5000 PSI)

35 Bar (500 PSI)

Up to 38 LPM (10 GPM)

12 VDC, 6 ohms, 2 amps

Less than 1%

Less than 1%

10%

–29 to 60°C (–20 to 140°F)

Max. Tank Line Pressure

Viscosity

Fluid Cleanliness

75–600 SSU

ISO Class 16/13, SAE Class 4

or better

(see figure 1)

(see figure 1)

LVDT Characteristics

Primary (Pin A and B)

DC Resistance, 120 ohms

Secondary (Pin C and D)

DC Resistance, 340 ohmsCharacteristics

OperationWhen used in conjunction with our AS20 driver, theD1FS valve will provide the user with desirablecontrol options such as electronic null adjustment,ramp control, velocity limiting, deadband eliminationand an external closed loop feedback option.

Installation note: Valve should be mounted horizontally.(See Installation Information)

7.6 L/M (2 GPM) @ 145 ∆P15.1 L/M (4 GPM) @ 145 ∆P

Protection Class Nema 1 (IP50)


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Performance Curves

(Maximum Pressure Drop / Flow Envelope)

P→A + B→T or P→B + A→TNominal Supply Voltage

Flow

5000

4000

3000

2000

1000

05 10

PressureDrop

E01C

1 2 3 4 6 7 8 9

Figure 1

Flow

E01C

Looped Flow Path

Command Signal (% of Max. Signal)

P→A + B→T∆P = 145 PSI *

P→B + A→T∆P = 145 PSI *

Figure 2

0

345

69

138

207

276

BarPSI

LPM

GPM

18.9 37.93.8 7.6 11.4 15.1 22.7 26.5 30.3 34.1

(4)

(3)

(2)

(1)

0

15.1

11.4

7.6

3.8

–100 –80 –60 –40 –20 20 40 60 80 100

Flow vs. Input Command

E02C

E01FE02F

Loop

Operating Limits

at 100% Command Signal

E02C

E01FE02F

LPM (GPM)

See important installation information at the end of Section A


A12


Dimensions

Model D1FS Bi–Directional

172.0(6.77)

143.3(5.64)

23.9(.94)

315.2(12.41)

66.0(2.60)

46.0(1.81)

Ref.

90.9(3.58)

Model D1FS**K Uni–Directional

A

P

T

B

A

P

T

B

Ref.

240.0(9.45)

250.2(9.85)

172.0(6.77)

Inch equivalents for millimeter dimensions are shown in (**)

23.9(.94)

66.0(2.60)

46.0(1.81)

90.9(3.58)

THIRD–ANGLEPROJECTION

AB

A


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Ordering Information

D1F

ControlOption

Spool Style DesignSeries

D03ElectrohydraulicDirectional Flow

Control Valve

Integral LVDT Code Description

K12 VDCproportional solenoid

Code Description

N

V

Nitrile

Viton

Not Required for Ordering

SolenoidVoltage

SealOption

Code

A B

P T

A B

P T

01

02

Code Description Symbol

Bi–Directional

Uni–DirectionalFlow P→A & B→T

C

K

LVDT

A B

P T

LVDT

A B

P T

Cables

Code

EHC

3

6

9

12

15

ElectrohydraulicCable for

D1FS Valve

Length

Length

in

feet

Code

44–wire,20 gauge,shielded

Note: For D1FS LVDT mating connector only, order part #800772 (4–pin)

Use AS20 driver board

Weight: Single Solenoid 2.7 kg (6.0 lbs.); Double Solenoid 2.9 kg (6.5 lbs.)

Code

Pin orientationfor D1FS LVDTconnector

Y

S 11

EqualMetering

E

Spool

Length Cable Type Connector Type

Description Description

K

4 Y

FlowCode

C

ValveAccessory

0

Code Nominal Flow @∆P=10 Bar (145 PSI)

C

F

7.5 LPM (2.0 GPM)

15 LPM (4.0 GPM)

Code Description

0 Standard

Code Description

C Conduit Box

SolenoidAccessory

Bolt Kit No. #BK209, 10–24 x 1 1/4”

Mounting Bolt Torque: 5.6 N.m. (50 in–lbs.)

Use Power Supply #PS24, 24 VDC

LocationSubplate Port Size Max.

SPD23

SPD2330

SPD23S

SPD23SA

3/8” NPTF

3/8” NPTF

9/16–18 SAE

9/16–18 SAE

Bottom

Bottom

Bottom

Side

3,000 PSI

5,000 PSI

3,000 PSI

3,000 PSI

Pressure

A 004

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