3-19

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Characteristics

The WLL directional control valve series of the nominal

size NG6 (CETOP3) provides variable flow rates.

These valves are available with/without spool position

feedback and electrically controlled by the external dig-

ital amplifier modules VRD350/355 or PWD00A-400.

Typical applications are:

Exact and repeatible adjustment of flow rates, applica-

tions with rapid / slow speed profiles and the positioning

of hydraulic drives.

Technical features

• Spool / sleeve design

• High reproducibility from valve to valve

• Low hysteresis

• Progressive flow characteristics for sensitive adjust-

ment of flow rate

• Manual override

• Spool position feedback, optional

3-20

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Ordering Code

valve

Spool

type

Design

series

Code

G09

Voltage

9 VDC

Solenoid

voltage

(different

voltage by

request)

Series

letter

Style

Spool

position

feedback

Code

Spool position

feedback

without feedback

with feedback

(plug included)

Code

Style

L43

F42

3 G09

Please order plug/s separately.

See chapter 3 accessories.

Code

G06P003

G06P006

G06P012

G06P020

Spool type

Flow [l/min]

at ∆p 5bar

per metering

edge

K06P020

G06A006

G06A012

G06A020

6 / 3

12 / 6

20 / 10

K06A020

20 / 10

= Q

3-21

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Technical Data

General

Design Direct operated proportional DC valve

Actuation Proportional solenoid

Mounting position Optional

Environmental temperature [°C] -20 ... +60

Hydraulics

Pressure fluid Hydraulic oil as per DIN 51 524 ... 535, other fluids by request

Viscosity, recommended [mm²/s] 30 ... 80

max. admiss. [mm²/s] 20 ... 380

Pressure fluid temperature [°C] 0 ... +60

Filtration Permitted contamination class of to achieve with filter

pressure medium as per NAS 1638 β x = 75

class 7 - 9 X = 10

Mounting pattern DIN 24340 / ISO 4401 / CETOP RP121 / NFPA

Operating pressure [bar] Port P, A, B, max. 315 bar, Port T max. 210 bar

Nominal size DIN NG06

CETOP 03

Weight [kg] 2.2 (2.5 with LVDT)

Nominal flow at ∆p=5 bar

per metering edge [l/min] 3, 6, 12 and 20

Drain [l/min] see curves

Static / Dynamic Code "K" without spool position feedback Code "R" with spool position feedback

Hysteresis [%] ≤ 4 ≤ 0.3

Threshold [%] 0.5 0.2

Sensitivity [%] ≤ 0.3 ≤ 0.1

Response time t at 100% [ms] ≤ 30 ≤ 20

Solenoid

Type G09

Protection class DIN 40050 IP 65

Power consumption [VA] 17

Nominal resistance [Ohm] 2.2

Nominal current (100%ED) [A] 2.7

Voltage [V] 9

Electrical connection, solenoid EN 175301-803

Elec. connection, pos. indicator M12 / 4pin

EMV conformity, pos. indicator EN 50081-2

EN 50082-1

Note

Standard seal compound is NBR.

Wiring

Solenoid coil Feedback

1 = coil connection

2 = coil connection

PE = ground potential

1 = output, actual spool position

2 = supply (+24V)

3 = GND (0V)

4 = not used

3-22

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Flow characteristics

at ∆p = 5bar per metering edge

Dynamic response (WLL43G06* with power amplifier VRD350)

measured at: ±25% amplitude, offset 50%

Spool code G06P* / K06P*

Spool code G06A* / K06A*

Characteristic Curves

3-23

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Characteristic Curves

Operation limits Q = f (

∆∆

∆p)

WL*P006*K

WL*P020*K

WL*P012*K

WL*P003*K

3-24

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Characteristic Curves

Step response

Code "K" without spool position feedback

Code "R" with spool position feedback

3-25

WL_ 06.PM6.5 RH

Direct Operated Proportional DC Valve

Series WL*06*

Catalogue HY11-2500/UK

Dimensions

WLF42*

WLL43*

NBR

BK375 4x M5x30 8.1 Nm SK-WLL06F

DIN 912 12.9

Surface finish