Compact hydraulic power pack type HK 4.. and HKF 4.. · PDF fileD 7600-4 page 2 2. Type coding compact hydraulic power pack type HK 4.. and HKF 4.. Order examples: Single circuit pumps

D 7600-4Compact-hydraulic power

pack HK(F) 4..

November 1999-09

HAWE HYDRAULIK GMBH & CO. KGSTREITFELDSTR. 25 • 81673 MÜNCHEN

1.1

Compact hydraulic power pack type HK 4.. and HKF 4..

© 1997 by HAWE Hydraulik

Type HK 44.. and HKF 44.. nom. power 2.2 kWType HK 43.. and HKF 43.. nom. power 1.5 kWFan cooled, for continuous and intermittent service; single, double or triple circuit pumpNew: Version with auxiliary blower, type HKF...

Delivery flow Qmax = approx. 16 lpm (1450 rpm)Oper. pressure pmax = 700 bar (radial piston pump)

= 200 bar (gear pump)

For lower power demand (only single circuit pumps)see HK 34(8), HK 33(8) D 7600-3

HK 24 D 7600-2

Two different designs areavailable for the filler neck;There is also a screen filter0.4 x 0.22 installed in thebearing housing.

Filling gauge withmax./min. - marking

1. General description and information

Main connection pedestal with one pressurized oil outlet(single circuit pump) or two pressurized oil outlets ( two-andtriple circuit pumps ) and reflow inlet port.Prepared for the mounting of connection blocks for ongoingpressure and reflow pipes or with directly mounted direc-tional valve banks (illustrated connection block with pressure limiting valve).

Bottom housing sectionwith radial piston pump forpressure ranges up to 700bar and/or play compensat-ed gear pump for pressureranges up to 170 bar andstator (shrunken in) as wellas armature of the drive motor.Drive motor lay-out for 3 + 400/230V 50 Hz !/( IEC 38 ) as standard, nom-inal power 2.2 or 1.5 kW.Further nom. voltages pos-sible e.g. for 500V 50 Hz,220V 60 Hz.

Second or auxiliary pedestal with a pressureoutlet port and a reflow port (dual and triple circuit pumps).Prepared for the mounting of a connectionblock similar to the main connection pedestal.

The pump section is easily accessible fromthe underside after removing the bottom cover, e.g. for maintenance.

Finned tube tank with fluid level gauge (Plexisglas tube) and alternatively with temperature switch. It is connected via apress fit w ith the bottom housing where thestator shrunk in. This helps to conduct thegenerated heat from the armature to thecooling fins.

Top cover (bearing carrier) with upper bearing of the shaft, oil filler neck (see fluidfill-up) breather, leads connection stator winding → terminal enclosure (see there).Fan shroud with largely dimensioned fanwheel. The complete upper section is alsoavailable rotated by 3x90° in relation to thebottom section.The fan shroud directs the stream of air,which is created by the fan wheel, throughthe ribs and thereby ensures an intensiveheat dissipation to the surroundings.These compact hydraulic power packs aretherefore suitable for the VDE 0530 operat-ing modes S1 (continuous operation) in therange of the nominal power as well as S6(permanent running with idle sequences).Thereby approx. up to 1.8 of the nom. pow-er rating can be employed. S3 (intermittentservice) is also possible. The cooling effectof the large finned surface is also very goodat standstill of the motor.An auxiliary blower, driven independently,may be integrated as option for temperaturesensitive applications (approx. 25% better cooling).

Terminal box with cable gland M20x1.5. Six pin terminal strip enables the customer to connect eitherin !-mode (standard) for 3 + 400V 50 Hz or /-modefor 3 + 230V 50 Hz.Additional terminal strip for optional float switch or temperature switch.

D 7600-4 page 2

2. Type coding compact hydraulic power pack type HK 4.. and HKF 4..Order examples:

Single circuit pumps (see section 2.2.1)

HK 44 8 LST /1 M - H6,0- A1/200

Connection block(If required in combination with directionalvalve bank, see sect. 5.6)

Motor voltage 3 + 230/400V 50Hz


Pump version:H 0,9 ... H 13,1 - Radial piston pump Z 2,0 ... Z 16 - Gear pump

Oil filler neck versionsno coding Standard with G 1/2M with G 1 1/4

Position of the terminal enclosure/1 Standard/2, /3, /4 Installation position, each rotated by 90°

Additional functions (combinations are also possible)no coding StandardS, D Float switch (versions: NO-contact (S) or NC-contact (D))T Temperature switchR Additional cover of the blower housing to protect it from coarse contaminationL Additional leakage port G 3/4

Tank sizeno coding 6.9(8.6) l 2) filling volume, 2.3 l usable volume 1)5 6.6(7.4) l 2) filling volume, 1.8 l usable volume8 7.8(8.6) l 2) filling volume, 4.6 l usable volume 1)9 9.8(10.6) l 2) filling volume, 5.0 l usable volume

Basic types, size and motor outputHK 44 Motor nominal power PN = 2.2 kWHK 43 Motor nominal power PN = 1.5 kWHKF 44. Version with auxiliary blower for increased cooling (PN = 2.2 kW)HKF 43. Version with auxiliary blower for increased cooling (PN = 1.5 kW)

Dual circuit pumps (For possible combinations and symbols, see section 2.2.2)

Separated connection pedestal (P1 and P2):

HK 44 ST/1 - H2,5 - H5,6 - AS2/350- AS1/250 3)

HK 43 /2 - H0,9 - Z6,9 - ... 3)

HKF 448 STR/4 - Z3,5 - Z11,3 - ... 3)

Joint pump pedestal (P1 und P3):

HK 44 ST/1 - H H2,5 / 5,6 - ... 3)

HK 43 /2 - H Z0,9 / 6,9 - ... 3)

HKF 449 LSTR/4- Z Z3,5 / 11,3 - ... 3)

Pressurized oil outlet: P1 P2

Pressurized oil outlet: P1 P3

Pump version:H 0,9 ... H 6,5 - Radial piston pumpZ 2,0 ... Z 11,3 - Gear pump

Pump version:H 0,9 ... H 6,5 - Radial piston pumpZ 2,0 ... Z 11,3 - Gear pump

Pump version:H 0,6 ... H 4,4 - Radial piston pump

Attention: An additional leakage port "L"is not available!”

Symbol (example)

(Radial piston pump - radial piston pump)

(Radial piston pump - gear pump)

(Gear pump - gear pump)

(Radial piston pump - radial piston pump)

(Radial piston pump - gear pump)

(Gear pump - gear pump)

Triple circuit pumps (For possible combinations and symbols, see section 2.2.3)

HK 439 ST/1 - H H3,3 / 0,6 - H1,6 - ...

1) Not avail. with aux.blower

2) Figures in brackets apply to HK...-Z..-Z..

3) The motor voltage mustbe specified always (e.g. 3 + 230/400V 50Hz)

D 7600-4 page 3




2.1 Motor and tank sectionBoth, plus the pump section (see sections 2.2.1 to 2.2.3) yield the basic hydraulic power pack.

HK 435 L ST/1M - Z8,8 - AL21 F2 - E50/60HK 44/1 - H1,4 - A2/600HKF 439 ST/1 - Z12,3 - A1/100

Order example 1:

Order example 2:Order example 3:

Table 1a: Versions for motor and tank

Basic types andsize

Optionalequipmentacc. tosection 3.3

Additional leakage reflowport G 3/4

Codings Filling volume

approx. (l)

Usablefilling volume

approx. (l)

Motor nominal power

400V ! 50 Hz 230V / 50 Hz 500V ! 50 Hz

(kW)

460V ! 60 Hz265V / 60 Hz

(kW)

5.8

6.8

8.0

10.0

5.8

6.8

8.0

10.0

1.9

2.5

4.3

5.7

1.9

2.5

4.3

5.7

For high and hot leakage reflow (due to opera-tion), e.g. from chucks of lathes. The leakagereflow is led in such a way that the dissipatedheat is drawn off by the fan cooling.

no switch

Float switch

Temperature switch

Float and temperature switch

Providing additional protectionagainst coarse contamination

Protective coverfor the fan

Orientation of the upperhousing section and termi-nal box .Attention: The 4 differingorientation codings influ-ence also the position ofthe upper housing sectionincl. fluid level gauge,breather, etc. (see also dimensional drawings insect. 4.1)

no coding Standard version

NO-contact

NC-contact

NC-contact

For circuitry see section 3.3

Standard

Breather

Terminalbox

Rotatedanti-clockwise

90°

180°

270°

Standard with filler hole G 1/2

With filler reducerG 1 1/4

Oil filler neck

no coding

1) Version with additional (integrated) auxil-iary blower for the use at temperature sen-sitive controls (e.g. at tooling machines /lathes), approx. 25% increased cooling (also see section 5.2.4 and 5.3).

2) Not available when the second connce-tion pedestal is employed for P2 (doublecircuit pumps with separate outlet ortriple circuit pumps acc. to sects. 2.2.2 a.2.2.3).Not necessary with type HK(F) 449(5) andHK(F) 439(5) as port L is standard

2.2 2.6

1.81.5

HK 44

HK 445HKF 445 1)

HK 448

HK 449HKF 449 1)

HK 43

HK 435HKF 435 1)

HK 438

HK 439HKF 439 1)

L 2)

S

D

T

R

ST orDT

/1

/2

/3

/4

M

Symbols acc. to example 1

acc. to example 2

acc. to example 3

}

Secondconnectionpedestal

Main con-nectionpedestal

D 7600-4 page 4

6

0,9

0.64

0.91

1.1

700

700

700

700

7

1,25

0.88

1.25

1.5

700

700

510

700

8

1,5

1.15

1.59

1.9

590

700

390

700

12

3,6

2.58

3.67

4.4

260

350

170

350

13

4,3

3.03

4.26

5.15

220

300

150

300

10

2,5

1.79

2.54

3.05

380

500

250

500

14

5,1

3.51

5.0

6.0

190

250

120

250

15

5,6

4.03

5.7

6.9

170

220

110

220

16

6,5

4.58

6.5

7.8

150

190

90

190

2.2 Pump section2.2.1 Single circuit pump

The pressurized oil outlet is always led tothe main connection pedestal. The second or auxiliary pedestals is notutilized and therefore not machined.

Table 2 : Single circuit pumpHigh pressure radial piston pump with a delivery flow (flow corresponds to 3, 5 or 6 pump cylinders)

Order example: HK 44/1 - H 7,2 - C5

HCodings for radial piston pump (high pressure pump)

3-cyl.-Pumpe

Delivery flow coding

Geom. displacement Vg

Delivery flow QPu1)

(lpm)

(cm3/rev)

50 Hz

60 Hz

(bar)

(bar)

(bar)

(bar)

Piston diameters (mm)

p1

pmax

p1

pmax

HK 44..HKF 44..

HK 43..HKF 43..

Permissi-ble pres-sure

Continuous operation S1 2) 3)

Continuous operation S1 2)

Load/no-load operation S6-10 min with approx. 30% LD

1,4

1.07

1.52

1.83

630

700

420

700

2,08

1.46

2.07

2.5

460

700

300

610

2,6

1.91

2.7

3.25

350

650

230

470

4,2

2.98

4.14

4.97

220

410

150

300

6,0

4.30

6.1

7.3

150

290

100

200

7,0

5.04

7.1

8.5

130

250

90

180

8,3

5.85

8.2

9.9

110

210

80

150

9,5

6.72

9.5

11.5

100

180

70

130

10,9

7.64

10.8

13.0

80

160

50

110

5-cyl. pump



Delivery flow QPu1)

(lpm)

(cm3/rev)

50 Hz

60 Hz

(bar)

(bar)

(bar)

(bar)

p1

pmax

p1

pmax

HK 44..HKF 44..

HK 44..HKF 44..

HK 43..HKF 43..

HK 43..HKF 43..


1,8

1.29

1.82

2.2

530

700

350

700

2,45

1.75

2.49

3.0

380

700

250

510

3,2

2.29

3.24

3.9

290

540

190

390

5,0

3.58

5.1

6.15

180

340

120

250

7,2

5.16

7.3

8.8

130

240

80

170

8,6

6.05

8.5

10.2

110

200

70

150

9,9

7.02

9.9

12.0

90

170

60

130

11,5

8.06

11.5

13.8

80

150

50

110

13,1

9.17

13.0

15.6

70

130

40

90

6-cyl. pump



Delivery flow QPu1)

(lpm)

(cm3/rev)

50 Hz

60 Hz

(bar)

(bar)

(bar)

(bar)

p1

pmax

p1

pmax



Note: For footnotes 1 ) 2 ) 3 ) see page 5 !

Symbol for thebasic hydraulicpower pack validonly for pumpsacc. to table 2and 3







Load/no-load operation S6-10 min 2) with approx.. 30 % BD


D 7600-4 page 5

Z Codings for gear pump Size 1, also suitable for dual circuit pumps acc. to sect. 2.2.2

2,0

1.4

1.95

2.35

170

170

170

170

2,7

1.9

2.65

3.2

170

170

170

170

3,5

2.4

3.35

4

170

170

170

170

4,5

3.1

4.3

5.2

170

170

140

170

5,2

3.6

5

6

170

170

120

170

6,9

4.8

6.7

8.1

140

150

90

150

8,8

6.1

8.5

10.2

110

150

70

140

9,8

7

9.8

11.8

90

130

60

120

11,3

7.9

11

13.3

80

130

55

110

12,3

8.5

12

14.5

70

140

50

100

16

11

15.5

18.7

60

110

40

80



Delivery flow QPu1)

(lpm)

(cm3/rev)

50 Hz

60 Hz

(bar)

(bar)

(bar)

(bar)

p1

pmax

p1

pmax

HK 44..HKF 44..

HK 43..HKF 43..


Order example: HK 43S/1M - Z 4,5 - SWC1/120 - UGG - 1 - G24

HK 43/1 - H 0,9 - A3/500 - VB01FM - R3 N3 R3 N3 - 32 - G24Symbols: (Examples)

Size 2

Table 3: Single circuit pumpGear pump for low and mid range pressure applications with a delivery flow according to the size.

2) An inertia excess temperature of approx. 50K can be expect with the max. permissible pressure mentioned in the tables 2 and 3, if p1 isnot exceeded in continuous operation S1 and the indicated load periods are apparent in the no-load/load operation S6-10 min. This temperature usually will be considerably lower in the practical case, see also section 5.3.These temperature figures do apply to usual operation, taking into consideration the unavoidable losses due to back pressure in pipesand valves. Additional losses caused by flow control valves, pressure control valves, orifices etc. may lead to a higher inertia excess temperature, depending on the time involved.

3) The middled pressure of subsequent load cycles (e.g. at accumulator charging operation) should not exceed 50... 60% of p1 to ensurean economic service life of the bearings.

4) Max. pressure depending on the displacement. The continuous pressure requirement should be below 100 bar, to ensure an economicservice life of the gear pump.

1) Reference value refering to a nominal speed of 1395 rpm with mainsfrequency 50 Hz or 1750 rpm with mains frequency 60 Hz. Deliveryflow reduction due to speed drop of the motor in the range of pmax,see also sect. 5.1.The delivery flow coding can be regarded as a rough reference value for the flow at mains frequency 50 Hz.


Load/no-load operation S6-10 min

Load/no-load operation S6-10 min


HK 43 S/1M - Z4,5 - SWC 1/120 - UGG - 1 - G24




D 7600-4 page 6

Main connection pedestalsSecondary connectionpedestals

Main connection pedestals

Order examples: HK 43 ST/1 - H1,5-Z9,8 - A1/500 - A2/150

HK 44 ST/1 - HH 3,6/6,5- SS - A1/250P1P3P1 P1

P1 P2 P1 P2

P3 P1/P3Motor voltage 3 + 230/400V 50Hz

2.2.2 Dual circuit pumpThe following pump combinations are available:• Radial piston pump of (3-cyl.) - radial piston pump of (3-cyl.)• Radial piston pump of (3-cyl.) - gear pump• Gear pump - gear pumpThe pressurized oil outlets can be led either individually to the main and the secondary connectionpedestal or both are led to the main connection pedestal.Because both pump circuits always deliver simultaneously, it has to be made sure that both can beswitched individually via an idle circulation valve in idle circulation mode as soon as no pressurizedfluid is required from it. These idle circulation valves may be either part of the required connectionblock ( see section 5.6 ) or the subsequent directional valve bank.Versions H...-H... to Z...-Z... are mainly used for applications where the consumers of two individ-ual circuits are simultaneously operated. Versions HH.../... to ZZ.../... are mainly used for single circuits to enable stepwise velocity control of consumers, by switching the individual pump circuitsin or out of idle circulation mode.

16

6,5

4.58

6.5

7.8

190

11,3

7.9

11

13.3

130

110

15

5,6

4.0

5.7

6.9

220

9,8

7

9.8

11.8

130

120

14

5,1

3.5

5.0

6.0

250

8,8

6.1

8.5

10.2

150

140

13

4,3

3.0

4.26

5.15

300

6,9

4.8

6.7

8.1

150

150

12

3,6

2.58

3.67

4.4

350

5,2

3.6

5

6

10

2,5

1.79

2.45

3.05

500

4,5

3.1

4.3

5.2

8

1,5

1.14

1.52

1.83

700

3,5

2.4

3.35

4

7

1,25

0.88

1.25

1.5

700

2,7

1.9

2.65

3.2

6

0,9

0.64

0.91

1.1

700

2,0

1.4

1.95

2.35

Table 4: Dual circuit pumps as combinations of radial piston pump (H) and/or gear pump (Z)

Pressurized oil outlets P1 and P2 atindividual connectionpedestals

Pressurized oil outlets P1 and P3common on themain connectionpedestal

Pump combination

H ... - H ... 4)

H ... - Z ... 4)

Z ... - Z ... 4)

HH ... / ...

HZ ... / ...

ZZ ... / ...

Radial piston pump - radial piston pump

Radial piston pump - gear pump

Gear pump - gear pump

Pressurized oil outlet P1 - Pressurized oil outlet P2 (P3)

Radial pistonpump (H) 2 x 3 pump cyl.

Piston-# (mm)

Delivery flow codingfor three pump cyl.

Geom. dis-placement Vg

Delivery flowQPu

1) (lpm)

max. pres-sure pmax

2)

(cm3/U)

50 Hz

60 Hz

(bar)

1) Reference value corresponding to a nominal speed of 1395 rpm with mains frequency 50 Hz or 1750 rpmwith mains frequency 60 Hz. Delivery flow reduction due to speed drop of the motor in the range of pmax,see also sect. 5.1.The delivery flow coding can be regarded as a rough reference value for the flow at mains frequency 50 Hz.

2) The actually permissible pressure depends on the load of the simultaneously stressed pump circuits aswell as the motor output (HK(F) 44.. und HK(F) 43..) and should be more lowly limited if necessary, see al-so section 5.1.

3) Max. permissible pressure with load / no-load operation ~ 20% LD (Idle circulation) for pumps type Z. Take also into account footnote 4) for table 3, if the pump circuits are used independently from each other simultaneously.

4) Not available in combination with coding L (table 1 in sect. 2.1)


Geom. dis-placement Vg

Delivery flowQPu

1)approx. (lpm)

max. pressure pmax

2) 3)(bar)

(cm3/U)

50 Hz

60 Hz

sizeGear pump (Z)

170

1 (Without meaning for the type coding )

HK 44..(43..)./..- HH.../...

to P1 P3

HK 44..(43..)./.. - H... - Z...- Z... - Z...

HK 44..(43..)./.. - HZ.../...- ZZ.../...HK(F)44..

HK(F)43..

Symbols

HK 44..(43..)./..- H...- H...

to P1 P2

D 7600-4 page 7

2.2.3 Triple circuit pumps

This version is available as radial piston pump with 6 pump cylinders only. Always 2 are ledto the ports P1 and P3 (main connection pedestal) as well as P2 (secondary connection pedestal).Since all three pump circuits deliver always simultaneously, it has to be made sure that bothcan be switched individually via an idle circulation valve in idle circulation mode as soon asno pressurized fluid is required from it. These idle circulation valves may be either part of therequired connection block ( see section 5.6 ) or the subsequent directional valve bank.

Order example: HK 44/1 - HH0,6/2,4 - H1,6 - C30 A1/100 - C5

Connection blocks for main connection pedestals

Secondary connection pedestals

Table 5: Triple circuit radial piston pumps (combinations with gear pumps are not available )

HH ... / ... - H ... 3)Coding

Pump circuit P2 on secondary pedestals

Pump circuit P1

Pump circuit P3

on mainconnectionpedestals

Piston diameters

Delivery flow coding for twopump cylinders

(mm)

(cm3/rev)

50 Hz

60 Hz

HK(F) 44HK(F) 43


Delivery flow QPu1)

(lpm)

Perm. pressure pmax2)

(bar)

16

4,4

3.06

4.35

5.25

190

15

3,8

2.7

3.83

4.6

220

14

3,3

2.33

3.3

4.0

250

13

2,8

2.0

2.84

3.4

300

12

2,4

1.72

2.44

2.94

350

10

1,6

1.19

1.69

2.04

500

8

1,0

0.76

1.08

1.3

700

7

0,83

0.58

0.83

1.0

700

6

0,6

0.43

0.61

0.73

700

1) Reference value corresponding to a nominal speed of 1395 rpm with mains frequency 50 Hz or 1750 rpm with mains frequency 60 Hz.Delivery flow reduction due to speed drop of the motor in the range of pmax, see also sect. 5.1.The delivery flow coding can be regarded as a rough reference value for the flow at mains frequency 50 Hz.

2) The actually permissible pressure depends on the load of the simultaneously stressed pump circuits as well as the motor output (HK(F) 44.., HK(F) 43..) and if necessary should limited more lowly, see also section 5.1.

3) Not available in combination with coding L (table1, in sect. 2.1)

P3 P2P1Motor voltage 3 + 230/400V 50Hz

D 7600-4 page 8

3. Further characteristic data3.1 General information

Nomenclature Constant delivery pump

Design Valve controlled radial piston pump or play compensated gear pump (with external toothing)

Direction of rotation Arbitrary for radial piston pumps (version HK 44..H.. and HK 43..H..), delivery flow direction remains the same.

Installed position Only vertically standing

Fastening Four bore holes Ø9 on the bottom side, see also section 4 and 5.4

Pipe connection Depending on the connection block, see section 5.6P ..... Pressurized oil outlet G 1/4 or G 3/8R ..... Reflow port G 1/4 or G 3/8 (must not be used as suction port)T ..... Connectivity for an auxiliary tank to increase the usable filling volume, G 3/4.

Attention: Reflow pipe must not be connected!A, B .. Consumer ports if directional valve banks are mounted, see also the pamphlets

mentioned in section 5.6, G 1/4 or G 3/8L ..... Leakage port G 3/4 (must not be used as suction port, see footnote 2) page 3)

Ambient temperature -40 ... +60°C

Filling and usable volumes

Version HKF 4.. as well as gear pumps ( coding Z. . ) also if in com-bination with radial piston pumps (coding HZ... etc.) must rotate an-ti clockwise always. It is therefore necessary to check the rotationdirection of the motor. The fan wheel has to rotate anti clockwiseafter starting the motor when looking through the perforation of thefan shroud. The connection of two of the three main wires has to beinterchanged at the terminal strip or the special plug CEE 17 (DIN 49462) should be used enabling these changes in the plug, ifthe direction of rotation is wrong.

Mass (weight)

Versions with float switch (section 3.3) provide a signal,as soon as the fluid level drops by hSch below the max.level and the volume VSch is removed.

Fluid level min. H

Perm. level drop h

Filling volume VF

Total usable filling volume VN

Fluid level drop hSch

Removed volume VSch

(mm)

(mm)

(l)

(l)

(mm)

(l)

270

94

5.8

1.9

94

1.9

270

214

8.0

4.3

214

4.3

270

214

10.0

5.7

214

5.7

Dimensions and volumesare approx. figures

HK..44HK..43

448438

449439

270

94

6.8

2.5

94

2.5

445435

Pressure range Delivery side (outlet ports P...) depending on pump design and delivery flow, see sect. 2.2 ++.

Pressure fluid Hydraulic oil conforming DIN 51514 part 1 to 3: ISO VG 10 to 68 conform. DIN 51519.Viscosity range: Viscosity during start min. approx. 4; max. approx. 1500 mm2/sopt. service: approx. 10 ... 500 mm2/sAlso suitable are biologically degradable pressure fluids type HEES (Synth. Ester) at service temperatures up to approx. +70 °C. Electrically hazardous: Any fluid types containing water must not be used (short-cut).

Temperature Ambient: approx. -40 ... +60 °CFluid: -25 ... +80°C, Note the viscosity range !Permissible temperature during start: -40°C (observe start-viscosity!), as long as the service temperature is at least 20K higher for the following operation.Biologically degradable pressure fluids: Observe manufacturer’s specifications. By considerationof the compatibility with seal material not over +70 °C.

The specific usable filling volume is 0.2 l per 10 mm of fluid level drop. The motor outline (winding overhang) is no longer oil immersedif the fluid level drops below the min. marking. Any further drop will result in no considerable volume gain as the bottom interior is occupied by functional parts.

Ring making

HK(F) 44 445 448 449HK(F) 43 435 438 439

HK ../.. - H.. 29 29.8 34 34.4- H..-H.. 29 29.8 34 34.4- HH.. 29 29.8 34 34.4- HH../..-H.. 29 29.8 34 34.4

HK(F) 44 445 448 449HK(F) 43 435 438 439

HK ../.. - Z.. 25.5 26.3 30.5 30.9- H..-Z.. 28.5 29.3 33.5 33.9- Z..-Z.. 26.8 27.6 31.8 32.2- ZZ../.. 26.8 27.6 31.8 32.2

Do not exceed themax. fluid levels(see marking), because the re-maining volume isrequired when thefluid temperaturerises.

Filli

ngvo

lum

eV

F

Usa

ble

fillin

gvo

lum

eV N

Min

.flui

dle

vel

H

Max

.flu

idle

velH

+h

D 7600-4 page 9

3.2 Electric data

For 3-phase mains, 4-poles, stator shrunk into the pump housing

Circuitry ex-works

Terminal box at thepump body

Float switch:Max. switched power DC/AC............. 60 W / 60 VAPermissible current DC and AC.......... 0.8 A (cos ϕ = 1)Max. voltage....................................... 230V 50 and 60 HzTemperature range.............................. approx. -10 ... +80°CA protective circuit should be employed with inductive load.

Temperature switch:Signaling takes place at a housing temperature of approx. 80°C.Max. voltage....................................... 250V 50 and 60 HzNom. current (cos ϕ ~ 0.6).................. 1.6 AMax. voltage with 6 ... 24V DC........... 1.5 A (cos ϕ = 1)Attention:

The temperature switchmay also be retrofitted.The float switch can’t beretrofitted (only availableex-works).

1) For data of the auxiliary blowersee section 5.2.4

2) For permissible voltage rangessee section 5.1

Bridge1.52

Mains 3 + 400V! -connection(state of delivery)

Circuitry also formotor mains3 + 500V

Circuitry customer furnished (for notesto the EMC, seesection 5.2.5)

Optional equipment

Mains 3 + 230V/ -circuitry

ISO 1207-M4x10-4.8-A2K

M20x1.5

ISO 1207-M4x8-4.8-A2K

Terminals, if optionalequipment is apparen

M20x1.5

For optional equip-ment see below

Feltstrip

Electr. connection:HK(F) 44..(43).. S or HK(F) 44..(43).. DThe float switch S or D is always connected to 1-2

HK(F) 44..(43).. TThe temperature switch T is always connected to 3-4

HK(F) 44..(43).. DTBoth switches D and T are connected in series via bridge 2-3 ex-works and shall be attached by 1-4. This bridge is to be removedif they should be used individually

HK(F) 44..(43).. STFloat switch S is connected to 1-2 The temperature switch T is connected to 2-4

NO-swichS

NC-switchD

NC-contact

S

S

D

D

T

T

T

}

}

}

MotorNom. voltage 2)Mains frequencyRev. ratingOutputCurrentStart current ratioPower factorProtection classification

(V)(Hz)(min-1)(kW)(A)

(IA/IN)(cos ϕ)

400/230 !/5014052.24.8 / 8.35.40.85IP54

460/265 !/6017002.64.9 / 8.55.00.8 IP54

400/230 !/5013951.53.1 / 5.44.20.91IP54

460/265 !/6016751.82.8 / 5.24.00.9IP54

500 !5014052.23.8 / 6.65.40.85IP54

Type of pump HK 44(445, 448 and 449)

HKF 445 (449) 1)

HK 43(435, 438 and 439)

HKF 435 (439) 1)

HK 44(445, 448, 449)

HKF 445 (449) 1)

D 7600-4 page 10

4. Unit dimensions

Note:For the dimensions of the different connection blocks seethe corresponding pamphlets listed in sect. 5.6

4.1 Basic hydraulic power pack

Type HK(F) 44(8) and HK(F) 43(8)

All dimensions are in mm and are subject to change without notice!

G 1 1/4 - filler neckreducer HK(F) 44..(43..)../..M Detail A:

Main connection pedestals for connection blocks acc. tosection 5.6

M6, 17 deep

M8, 15 deep

Centeringpin

VersionsHK(F) 4../.. - H...

- H... - H..- Z...- H... - Z..- Z... - Z..

Centering pin

Plugs not removable

M20x1.5

Port G 3/4 for auxiliary tanksacc. to section 5.5

DrainG 1/4

Drain G 1/8

Drain G 1/4

VersionsHK(F) 4../.. - HH.../...

- HH.../... - H..- HZ.../...- ZZ.../...

O-Ring 10x2 NBR 90 ShO-Ring 8x2 NBR 90 Sh

Missing dimen-sions likeabove!

Detail B:Secondary pedestals (auxiliary pedestals) forconnection blocks acc. to section 5.6

VersionsHK(F) 4../.. - H.. - H...

- HH../.. - H...- H.. - Z...- Z.. - Z...

VersionsHK(F) 4..L/.. ...

Missing dimensions like bove!

Deep-drawn floorplate with Z 12.3 or Z 16 (h=79)Z 21 or Z 24 (h1=103)as well as all dual- andtriple circuit pumpswith gear pumps

Detail C:Installation example

M 8 x 25

Silentbloc# 40x30 / M8 (65 Sh),also see sect. 5.4

Filler neck G 1/2

Oil level gauge

Breather

“A” “B”“C”

P (P1)

R

R

R

P1

P2

P3

Additional coverwith HK(F)44..(43..) R/..

Required holes in a customer furnished connection block

D 7600-4 page 11

M20

x1.5

Port G 3/4 for auxiliary tanksacc. to section 5.5

Note: For the dimensions of the different connection blockssee the corresponding pamphlets listed in sect. 5.6

Type HK(F) 445 and HK(F) 435 Type HK(F) 449 and HK(F) 439

Additional cover withHK(F) 44..(43..) R/..

DrainG 1/4

Floatswitchcoding S

Drain G 1/8

Deep-drawn floorplate with Z 12.3 orZ 16as well as all dualcircuit pumps withgear pumps (h = 79) For missing dimensions, see

type HK(F) 4..5!

Filler neck G 1

Oil level gauge

Breather

“A”

1)

“B”“C”

1) For details "A", "B", and "C" , see page 10!

2) At type HKF = 80 mm

Leakage portG 3/4

2 )

D 7600-4 page 12

5. Appendix5.1 IM - pB - QPu - characteristics

The current consumption of the motor depends strongly on its load. The nominal figures of sect. 3.2 apply strictly to one operat-ing point only. The pumps may be operated continuously up to themax. pressure p1 stated in sect. 2.2. Up to 1.8 s of the nominalpower of the motor can be exploited during load / no load opera-tion. The increased heat built-up under these conditions gets intensively radiated during the idle periods (also see sect. 5.3).

HK 44.. und HKF 44..Operating voltage 400/230V 50 Hz !/

500V 50Hz

HK 44.. und HKF 44..Operating voltage 460/265V 60 Hz !/

HK 43.. und HKF 43..Oper. voltage 400/230V 50 Hz !/ , 500V 50Hz !Oper. voltage 460/265V 60 Hz !/

1) UN =

x

-10%-5%+10%+5%

400/230V 50Hz460/265V 60Hz

U, f

360/210V 50Hz440/250V 60Hz440/250V 50Hz480/280V 60Hz

The product of pVg (bar · cm3/rev) is laid off as abscissa in thesecurves. This makes a rough consideration possible for the currentand the delivery flow to be expected, which is sufficient undermost conditions.The respective load is determinating for the current consumptionof dual and triple circuit pumps. The performance of the individ-ual circuits has to be determined and added up. The current to be expected can be found via (pVg)calc. in the curves. The permissible limit figures for pressure p1, p2 and p3 should not be exceeded aren't even if e.g. the available motor output isn'tcompletely employed. Vg1, Vg2 and Vg3 are the geometric displacements from the tables in section 2.2 ++.

p1, Vg1

p2, Vg2

p1, Vg1

p2 = / pL2)

Dual circuit pumps (pVg) calc. = p1 Vg1 + p2 Vg2

Triple circuit pumps (pVg) calc. = p1 Vg1 + p2 Vg2 + p3 Vg3

All portspressurized:

Dual circuit pumps (pVg) calc. = p1 Vg1 + /pL Vg2

Triple circuit pumps (pVg) calc. = p1 Vg1 + p2 Vg2 + /pL3 Vg3or(pVg) calc. = p1 Vg1 + /pL2 Vg2 + /pL3 Vg3etc.

One port pressur-ized, the other oneis in idle circulationmode:

/pL = Back pressure of thecorresponding pipe and valvesection during idle circulation.

2)

Mains: 50 Hz * 10% UN (like IEC 38)Mains: 60 Hz * 5% UN

Reduced voltage will cause a performance drop (& reduced pmax.).

Reference value:

Example: Uactual. = 400V 60HzUN = 460V 60Hz

poper. max. =

Permissible voltage ranges

Range S1 Range S6

Range S1 Range S6

Middle, arithmetical performance pmVg

(bar x cm3/rev)


(bar x cm3/rev)

Del

iver

yflo

w(te

nden

cy)

1.0

=Q

pu

acc.

tota

ble

2....

5D

eliv

ery

flow

(tend

ency

)1.

0=

Qp

uac

c.to

tab

le2.

...5

Mot

orcu

rren

tiM

(A)

Mot

orcu

rren

tiM

(A)

Delivery flowbro-

ken white line

Range S1 Range S6


(bar x cm3/rev)

Del

iver

yflo

w(te

nden

cy)

1.0

=Q

pu

acc.

tota

ble

2....

5

Mot

orcu

rren

tiM

(A)

Delivery flowbro-

ken white line

Delivery flow bro-ken white line

pm = Middle operating pressure (bar)

Vg = Geometric displacement (cm3)(according to flow codings)

N

actual.maxoper U

Up85,0p ⋅≈

.max.max p7,0V460V400

p85,0 ≈⋅

0.85

0.85p 0.7

D 7600-4 page 13

5.2 Motor protection circuitries, auxiliary blowers and EMC5.2.1 Protective motor switches

S1-operation:(for pressure≤ p1)

S1-operation:(for pressure ≤ pmax)

The bimetallic switch should be set for the corresponding current, required to achieve the adjusted pressure of thepressure limiting valve (see IM-(pVg)calc.- curve sect. 5.1), however not higher than the nom. current IN. This motorprotection covers only a possible mechanical blockade of the motor. The pressure limiting valve responses at pres-sure overload, without a rise beyond the corresponding motor current IM. The pump would run on and on, result-ing in an overheat after a certain time like any other hydraulic power pack of classic construction would do. Sucha pressure overload can occur either due to overload of a consumer or start against a stop. This can be immedi-ately identified as the consumer movement stops and also the idle signal would be missing (Idle circulation valve doesn't open in the idle periods). A permanent pressure monitoring via a pressure gauge helps to identify such amalfunction. It is therefore recommended to use a pressure switch for self-supervisioning of the idle periods especially for automatic, not permanently manned systems.

In most cases it is sufficient, to set the response current to approx. (0.85...0.9) of IN. This makes sure that on onehand the bimetallic switch does not trigger too early during normal operation but on the other hand the oil temper-ature doesn't rise too high due to a prolonged response time after the pressure limiting valve is in action. Malfunctions during idle circulation mode, like described for S1-operation, are more reliably and immediately detected by idle supervisioning.It has to be taken into account that these notes for adjustment only represent very coarse reference values and perhaps must be corrected a little during a definite test run of the system. This might occur e.g. if the actually required performance of the pump (in S6-operation) is higher than calculated. Too early triggering of the bimetallicswitch will be caused as the temperature of the system would be higher after prolonged operation than anticipat-ed thereby reducing the response period of the switch.

5.2.2 Temperature switch section 3.2

5.2.3 Float switch section 3.2

This is an optional monitoring device, which will cut-off the pump if the fluid temperature rises over 80°C due to any malfunction.Examples: A pump is running too long against the pressure limiting valve at a unmanned system because the signal for idle

circulation was not released. The response period will be too long due to the low current consumption. The ambient temperature is too high, because it was not considered during lay-out of the system or it occurs unintended.Too much heat is generated in the system because of additional throttle losses caused by flow control valves, pressure reducing valves, orifices etc. Attention: The temperature switch will trigger only after the oil temperature is above approx. 95°C.

This is an optional monitoring device, which will either cut-off the pump or trigger a signal as soon as the fluid level drops below acertain level. Examples: Line rapture will cause an immediate stop, preventing complete emptying of the tank and dry running of the pump.

A signal will be triggered if the system was not refilled after design related fluid losses. Attention: The signal has to be delayed sufficiently (time lag relay) if the lay-out of the system features an operation cycle where the pump is emptied below the min. level and replenished by the reflow from the consumerwithin one cycle.

5.2.4 Auxiliary blowers with type HKF 4.. (section 2.1)

Main data

Auxiliary blowers Take into account the rotation direction of the pump motor, see also section 3.1 "Direction of rotation"

Blower drive Axial motor AD213-AB02-02 Messrs. EBM

Operating voltage 400/230V !/ 50 Hz, 460/265V !/ 60Hz (Other voltage on request)

Current 0.22/0.38A 50Hz, 0.26/0.45A 60Hz

Rev. rating 2650 rpm 50Hz, 2950 rpm 60Hz

Performance 110W 50Hz, 160W 60Hz

Protection class IP44, insulated against moisture

Circuitry ex-works same connection like pump motor (see also “Terminal box at the pump housing”)

5.2.5 Notes to ensure EMC (Electromagnetic compatibility)

The compact hydraulic power packs of HAWE are excluded from the EMC-regulation 89/336/EEC as they are no turn-key devices.We recommend to use the interference suppressors type 23140, 3 • 400VAC 4kW 50-60Hz of Murr-Elektronik in D-71570 Oppenweiler, if any interferences should occur.

D 7600-4 page 14

Calculated: Middled pressure during the load duration tB = t1 + t2 + t3 = 25s

Middle value for pump performance pmVg = 75 · 3.0 = 225 bar · cm3/rev

Relative load duration %BD = · 100 = · 100 = 45.45.. , 46%

5.3 Heat built-upThe persistent service temperature isreached after approximately one hour of operating time.

Influence-factors:Pressure distribution during the load duration(middled pressure), share of the idle period,additional throttle losses, exceeding usualfigures of back pressure for pipes and valves(pressure reducing valves, flow controlvalves, throttling valves, or throttles). Theseinfluences only have to be taken into accountif they are effective for a longer period withinthe operating cycle (load duration).The two most essential parameter, middled performance of the pump and load durationper operating cycle are usually sufficient fora rough re-check of the expected persistentfluid service temperature.

The curves below supply a rough guidelinehow far the persistent service temperature|}B of the compact hydraulic power packswill settle above the ambient temperature}U.

The |}B - pmVg - curves below supply arough guideline how far the persistent servicetemperature of the compact hydraulic powerpacks will settle above the ambient tempera-ture, only covering usual figures of back pres-sure for pipes and valves. The persistent ser-vice temperature will settle higher if addition-al throttle losses occur, caused by e.g. pressure reducing valves, flow control valves,throttling valves, throttles or periodical startagainst the pressure limiting valve.

}fluid B = |}B + }U

}fluid B (°C) = Persistent service temperature of the oil filling|}B (K) = Excess temperature after applied load , diagram }U (°C) = Ambient temperature in the installation area of the compact

hydraulic power pack.pm (bar) = Calculated, middled pressure per cycle during the load duration

tB = t1 + t2 + t3 + ...

pm (bar) =

pmVgbar·cm3/rev =Middled performance with Vg = geom. displacement acc. to the tables in sect. 2.2 ++

%BD (-) = Relative load duration per operating cycle

%BD = • 100tB

tB + tL

Calculation example:

Given:Pressure profile simplified down to easy geometric shape with cycle period Tlaid-off as abscissa.

Selected pump HK 44/1 - H4,2 with geom. displacements Vg = 3.0 cm3/rev

Pressure Time

p1 = 50 bar t1 = 15sp2 = 350 bar t2 = 2sp3 = 90 bar t3 = 8s(pL1 = 0 bar) tL1 = 10s(pL2 = 0 bar) tL2 = 20s

T = 55s

tBT

2555

Resulting in /}B , 28 K - from the /}B - pmVg - curve This means, that the persistent service temperature of the compact hydraulic pow-er pack at an ambient temperature }U = 20°C will be approx. 28 + 20 = 48°C (under the pre-defined conditions and uninterrupted cycles).

tp t p t

p pt

B⋅ + ⋅ +

+⋅ +

121 1 2 2

2 33 ...

= ⋅ ++

⋅ + ⋅

= ≈

125

50 1550 350

22 90 8 74 8 75, bar bar

pt

p tp p

t p tmB

= ⋅ ++

⋅ + ⋅

=

121 1

1 22 3 3

Per

sist

ents

ervi

cete

mp

erat

ure

tob

eex

pec

ted|}

B(K

)

Calculated, middled pump performance pmVg (bar x cm3/rev)

HK

F44

5(9)

HK

F43

5(9)

HK

445(

9)H

K43

5(9)

HK

44(8

)H

K43

(8)

Load duration Idle period

Idle period

One operating cycle

74.8 bar

Working cycle

D 7600-4 page 15

5.4 Running noise

Measuring conditions Work room, interference level approx. 50 dB(A); Measuring point1m above the floor; 1m object clearance, pump fixedwith 4 silentblocs Ø 40 x 30 65 Shore, (Messrs. Schwingmetall No. 20291/V).Measuring device: Precision sound pressure levelmeasuring instrument DIN IEC651 Kl. IViscosity of the oil: Approx. 60 mm2/s

The sound pressure level ranges shall serve to estimate the running noise to be expected. They approximately delimit the spreadsrecognizable during measuring. Pumps with smaller delivery flows tend as a rule to the lower, whereas larger ones tend to the upper limit. The noise level of dual or triple circuit pumps are similar to the one of single circuit pumps, if the total delivery flow is similar.Rigid mounting on a surface capable of resonance (e.g. welded or thin-wall machine stands) may significantly amplify or conductthe operation noise level. We recommend to mount the compact hydraulic power pack via silentblocs e.g. Ø40x30, 65 Shore (see specifications of the measuring conditions).

5.5 Auxiliary tanksIt is possible to increase the usable volume byconnecting an auxiliary tank at port T. It shouldbe used for volume compensation only. Thesetanks are to be customer furnished. The reflowpipe from the consumer circuit has to be con-nected at port R (connection pedestal)!The connection pipe has to be dimensionedsufficiently. The connection should be eitherby means of a hose only or with fittings forpipe 22x1.5 and a piece of hose to decouplethe noise.

Identical max. filling and min. fluidlevel heights, also see section 3.1Breather

Strainer

Hose

T & G 3/4Mounting via silentblocs,see section 4 and 5.4

5.6 Connection blocksThe compact hydraulic power packs acc. to section 2 ++ only represent the basic versions. They will be ready for operation only after installation of appropriate connection blocks. Table 6 ++ below lists various connection blocks and the corresponding pamphlets which cover more detailed information as well as order examples.

Single circuit pumpsacc. to sect. 2.2.1table 2 and 3HK 44..(43..)... - H...

- Z...

HK 44..(43..)... - H.../H...- H.../Z...- Z.../Z...

HK 44..(43..)... - HH.../...- HZ.../...- ZZ.../...

Dual circuit pumpsacc. to section 2.2.2

Triple circuit pumps acc. to section 2.2.3HK 44..(43..)... - HH.../... - H...

Secondary pedestalSecondary pedestal

Connectionblock acc.to table 6

Connec-tion blockacc. totable 6

Main connectionpedestal

Connection blockacc. to table 6

Intermediate blockacc. to table 7

Connection blockacc. to table 6

HK.. - H..- HH..- HZ..

HK.. - Z..- ZZ..

Sou

ndp

ress

ure

leve

lsd

B(A

)

Delivery flow coding Q (lpm) acc.to sect. 2.2 ++

Pressure (bar)

Sou

ndp

ress

ure

leve

lsd

B(A

)

Idle period

1a 1b

D 7600-4 page 16

Table 6: Connection blocks for one pressurized oil outlet, overview

Suitable direc-

tional valve

banks for direct

mounting 1)

No possibility

for mounting

Add-on spool

valves acc. to

D 7230-1

Add-on spool

valves acc. to

D 7450

Brief note to the

intermediate block

Simple connection

block

For single acting lifting

or clamping devices 1) 2)

Most frequently

used connection

block with pressure

limiting valve

More seldomly used

for HK 3)

With idle circulation

valves acc. to D 7490/1

Automatic idle circu-

lation 5) (accumulator

charging valve)

With reflow filters 12 µm

nom. 50% / 30 µm abs.

or pressure resistant

filters 10 µm ( β10 = 75 )

with AL21D.. and idle

circulation valves, see 6)

Proportional pressure

limiting valve

Pressure limiting valve

with unit approval

Integrated directional

spool valve

Integrated directional

spool valve

Return

pres-

sure

stop

no

no

no

no

no

no

no

no

yes 7)

no

no

no

no

Idle cir-

culation

valve

no

no

no

no

no

no

yes

yes 4)

yes 6)

yes 9)

no

yes 11)

yes 11)

no

no

yes

yes

yes

yes

yes

yes 4)

yes 5)

yes

yes

yes

yes

Flow

(lpm)

12

28

8 ... 25

12

18

18

18

12

15 ... 33

dep. on

filler size

20

6 ... 10

12 ... 20

12

Pressure

range

from ... to

(bar) 1)

700

700

450 (700)

(0) ... 700

in steps

(0) ... 450

in steps

51 ... 350

in steps

(0) ... 700

in steps

dep. on

type

5 ... 700

80 ... 450

200 .. 40010)

315

Port

threads

DIN ISO

228/1

G 1/4

G 3/8

G 1/4

to

G 1/2

G 1/4

G 3/8

G 3/8

G 1/4

G 1/4

G 1/4

to

G 1/2

dep. on

type and

connection

side

G 1/4

G 1/4

G 1/4

and

G 3/8

G 1/4

Coding

C5

C6

B../...-...

A1/.. to

A4/..

A13/.. to

A43/..

A51/.. and

A61/..

AS(V)1/..

to

AS(V)4/..

AL11(12)..

A..F../..

AS..F../..

AM..F../..

AK..F../..

AL21F../..13)

AL21D../..13)

AP1.. and

AP3..

AX14.. and

AX3..

SKC11..

to

SKC14..

SWC1

Pamphlet

D 6905 C

D 6905 B

D 6905 A/1

D 6905 TÜV

D 7230-1

Pos. 8.1

D 7450

Integrated functional el-ements 12)

1) It should be kept in mind that the directional valve banks which can be directly mount-ed may have a max. permissible pressure below 700 bar.

2) Pumps type HK should be used for intermittent service only

3) The valves are directing radially to the outside

4) Hydraulic cut-off function acts as pressure limitation also

5) Depending on type also with additional proportional pressure limiting valve

6) Idle circulation valve acc. to D 7490/1 with AS..., acc. to D 7470B with AK... and AM...,with automatic idle circulation (accumulator charging valve) with AL21...

7) With pressure resistant filter at AL21D...

8) Directional spool valve banks type SWR.., SWS.. are not ideally suited for mounting onto blocks type AL11(12) or AL21.., as the their always apparent leakage would pro-voke permanent activation. This effect could be minimized by using an accumulator.

9) May be used as idle circulation valve if the prop. solenoid is deenergized (approx. 5 bar)

10) Depending on actuation and flow pattern

11) For directional spool valves with internal connection P → R in idle position

12) Pressure limiting valves acc. to D 7000E/1, 2/2-way directional valves acc. to D 7490/1,optional with additional check valve acc. to D 7445

13) Only to be installed at the main connection pedestal

1a BWN(H)1F... acc. to D 7470 B/1BWH2F... acc. to D 7470 B/1BVZP1F... acc. to D 7785 B

1b VB01(11)F... acc. to D 7302SWR(P)1F... acc. to D 7450SWR2F... acc. to D 7451SWS2F... acc. to D 7951

2 BWH3F... acc. to D 7470 B/1

3 VB11G... andVB21G... acc. to D 7302

4 BWN(H)1F... acc. to D 7470 B/1BWH2F... acc. to D 7470 B/1BVZP1F... acc. to D 7785 BVB01(11)F... acc. to D 7302SWR(P)1F... acc. to D 7450 8)SWR2F... acc. to D 7451 8)SWS2F... acc. to D 7951 8)

1a 1b

1a 1b

1a 1b

4 8)

2

3

1a 8)

Pressure

limiting

valve

D 7600-4 page 17

Table 7: Intermediate blocks for dual and triple circuit pumps acc. to section 2.2.2 and 2.2.3

Table 8: Additional intermediate blocks enabling arbitrary activation of a reduced pressure limitation lower than the main pressure

Required,

secondary con-

nection blocks

from table 6

D 6905 C

D 6905 A/1

D 6905 TÜV

Brief note to the

intermediate block

External pipe connection

for P3, R3

Idle circulation valve for

both or one pressure port

Low pressure release

valve for pressure port P3

Return

pressure

stop

no

no

no

Idle cir-

culation

valve

no

yes 2)

yes

Pressure

limiting

valve

no

no

yes 3)

Pressure

range

from ... to

(bar)

700

450

20 ... 75

Port threads

DIN ISO

228/1

G 1/4 and

G 3/8 1)

---

---

Coding

C30

SS to XV

CE 2..

Pamphlet

D 6905 A/1sec. 2.3

Integrated functional elements

Ongoing pipe

connection

Only via directly mounted

directional valve banks

1a 1b

Integrated functional elements 4)

and brief description

Pressure limiting valve and 2/2-way

directional valve connected in series

and acting as a by-pass P → R

Pressure range

from ... to (bar)

450

Port threads

DIN ISO 228/1

---

Coding

V1/..

to

S4/..

Pamphlet

D 6905 A/1sec. 2.4

1) Pressurized oil outlet P3 = G 1/4 and reflow port R3 = G 3/82) Idle circulation valve acc. to D 7490/13) Pressure controlled idle circulation valve acting simultaneously as

pressure limiting valve for port P3 4) Pressure limiting valves acc. to D 7000E/1, 2/2-way directional

valves acc. to D 7490/1, optional with additional check valve acc.to D 7445

1a BWN(H)1F... acc. to D 7470 B/1BWH2F... acc. to D 7470 B/1BVZP1F... acc. to D 7785 B

1b VB01(11)F... acc. to D 7302SWR(P)1F... acc. to D 7450SWR2F... acc. to D 7451SWS2F... acc. to D 7951

Additional interme-diate block acc. totable 8

Connection blockacc. to table 6(7)

D 7600-4 page 18

D 7600-4 page 19

Supplement No. 79Subject: Compact hydraulic power pack type HK(F) 4.. acc. to pamphlet D 7600-4,

Release November 1999

D 7600-4Supplement No. 79

September 2000-01

HAWE HYDRAULIK GMBH & CO. KGSTREITFELDSTR. 25 • 81673 MÜNCHEN

1.1

Flow Qmax = approx. 16 lpm (1450 rpm)Pressure pmax = 700 bar bar (radial piston pump)

= 200 bar (gear pump)

Curves

Compact hydraulic power pack type HK(F) 489..Version with increased motor nominal power 3 kW

Motor 3~phase motor, 4-pole

Nom. voltage (V) 400/230 !/ 460/265 !/

Mains frequency (Hz) 50 60

Ref. rating (min-1) 1410 1730

Output (kW) 3 3,6

Current (A) 6.6/11.5 6.6/11.5

Start current ratio (IA / IN) 5.7 5.5

Power factor (cos ϕ) 0.84 0.86

Protection classification IP 54 IP 54

Middle, arithmetical performance pm Vg

(bar x cm3/rev)

Middle, arithmetical performance pm Vg

(bar x cm3/rev)

Ref

eren

ceva

lue

Mot

orcu

rren

tIM

Nom

.cur

rent

I N

Delivery flowbroken

white line 60 Hz

(tendency)

Delivery flow broken

white line 50 Hz

(tendency)

Supplementary to the pump versions with nominal motor power 1.5 kW (type HK 43.) and 2.2 kW (type HK 44.) this version has a nominalmotor power of 3.0 kW. This version is intended for applications where 1.5 kW or 2.2 kW are not sufficient.Only available with high volume tank designs “HK..5” and “HK..9”

Order example: HK 489 LT/1 - H..

Basic typeand Size

HK Standard

HKF With auxiliary blowerHK(F) 4

Motor versions

Tank versions

8 Motor nominal power 3 kW

5

9

Filling volume 6.6 lUsable fillingvolume 1.8 l

Filling volume 9 lUsable filling volume 5.5 l

Pump

H ..Z ..H .. - Z ..HZ .. /..

For delivery flow coding, see D 7600-4, sect. 2.2

H .. - H..HH .. /..Z .. - Z ..ZZ .. /..

Basic type with versions for motor and tank

Additional elements see D 7600-4, section 2.1

UB = 400/230V 50 Hz !/ UB = 460/265V 60 Hz !/

UNom.U Nom.

Del

iver

yflo

w(te

nden

cy)

1=

QP

uac

c.to

D76

00-4

,tab

le2.

..5

Radial piston pump H

Piston-# (mm) 6 7 8 10 12 13 14 15 16

Geom. displacementVg (ccm) 1.3 1.75 2.3 3.6 5.15 6.05 7.0 8.05 9.15

Perm. pressure (bar) 700 700 700 500 400 300 250 220 200

Gear pump Z 5.2 Z 6.9 Z 8.8 Z 9.8 Z 11.3

Geom. displacement Vg (ccm) 3.6 4.8 6.1 7.0 7.9

Permissible pressure (bar) 200 180 180 160 160

QB

QP

u

Max. permissible operating pressure for pump elements 1)

Max. permissible operating pressures for gear pumps 1)

1) Max. performance (pm Vg)max = 2600 bar ccm (motor load limitation)For multi-circuit-pumps (pm1 Vg1) + (pm2 Vg2) ≤ (pm Vg)max maxgm2g2m1g1m )Vp()Vp()Vp(umpenMehrkreispBei ⋅<⋅+⋅For multi-circuit-pumps

Documents

Compact hydraulic power pack type HK 4.. and HKF 4.. · PDF fileD 7600-4 page 2 2. Type coding compact hydraulic power pack type HK 4.. and HKF 4.. Order examples: Single circuit pumps