bkf off-line filter / cooler unit - bpkk...de 38 0002 01/2014 page 1/6 bkf off-line filter / cooler...

DE 38 000201/2014/6

BKF Off-line filter / cooler unit

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Compact design

Easy installation

DIN filter elements

Filling function optional (BKF 18/30)

Low- noise pump

Efficient plate heat exchanger

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Bühler Technologies GmbHD - 40880 Ratingen, Harkortstr. 29

Tel.: + 49 (0) 2102 / 4989-0 Fax: + 49 (0) 2102 / 4989-20Internet: www.buehler-technologies.com

e-mail: [email protected]

DE 38 000201/2014/6

Why off-line filters?

Experience shows off-line filtration has very effective results for many applications in fluid power and lubrication

systems. Independent from pressure ripples and flow surges, off-line filters develop the best possible retention of

particles and offer the highest possible dirt holding capacity.

In combination with other system components, eg. coolers or heaters, installation cost and space requirements can

be minimized.

Description

BKF 18/30

This unit offers a very compact design with an integrated low-noise, dirt-repellant gerotor pump. Placement of motor

and filter element result in minimal installation space. Suction and pressure hose are installed directly downwards into

the reservoir. This minimizes installation work.

As the basic frame provides additional connections at the front, the unit may be installed on the side of the reservoir.

The unit contains a limiting valve and filter elements of size DIN NG 250.

If closely coupled to the filter unit, the complete cooler installation requires just a little more space than the filter unit.

The heat dissipation can be as high as 60 hp.

BKF 60/90

Due to the larger pump and filter housing this unit is assembled on a rugged frame for vertical attachment. This unit

offers the same principal details as the BKF 18/30 but does not have an integrated by-pass valve in the pump.

Why Bühler?

The Fluidcontrol division of Bühler has focused on the fluid power and lubrication industries for a long time and has

developed an intimate understanding of the requirements for these applications. Although not a filter manufacturer in

the classical sense, we contribute some advanced developments to off-line filter units for the benefit of this market.

The filter housing can accommodate filter elements according to DIN 24550 available from major filter suppliers world

wide .

If you do not find an adequate solution for your application in this literature please do not hesitate to contact us for a

specific application proposal.

Technical Data BKF 18 / 30

Flow rate BKF 18 18 l/min

BKF 30 28 l/min

Pressure 6 bar

Suction hight 2 m

Relief valve setting 6 bar

Indication pressure 2.2 bar

E-motor* 230 / 400 V, 50 Hz ± 5%

276 / 480 V, 60 Hz ± 5%

Protection class IP 55

Power BKF 18 0.55kW-6 pol.

BKF 30 0.75kW-4 pol.

Current (at 400 V / 50 Hz)

BKF 18 approx. 1.7 A

BKF 30 approx. 2 A

Weight 18 kg

Mineral oil according to DIN 51524

Phosphate ester HFD-R according to CETOP RP 77 H

Cooling capacity see diagrams on page 5.

3902010 BKF 18 - without contamination display NBR

3902110 BKF 18 - mechanical contamination display NBR

3902210 BKF 18 - electric contamination display NBR




3825003 N 0250 DN 3 3 µm 13/10

3825006 N 0250 DN 6 6 µm 14/10

3825010 N 0250 DN 10 10 µm 15/11

Fluids

Please indicate with order

*Other motors upon request

Part-No. Model

Part-No. Filter element Pore size Cleaniness**

**achievable cleaniness according to ISO 4406

at volume V= 300 l and 24 h operating time (approx.)

DE 38 000201/2014/6

Dimensions (mm)

Installation hints:

---

All threads according to DIN EN ISO 228

If installed on the side of a reservoir make sure that the pump gets free flow of oil in the suction line

Make sure that indicator is visible when installing on tank top

Fitting

Contamination indicator(Option)

Plate heat exchangerMounting pattern

Water OUT

Mounting forheat exchanger

View A

Oil out

Water IN

245

369

27

3,5

(133)

220

235

420,5

287,5

40

A

G3/4

G1/2

Ø9

Ø157

24

278

G1/2

G 3/4

G1

104,5

Ø47 Ø37

32,5 150220

105

M8

3,5

105 72

F1

00

01

6

BWT B08X020

Technical Data BKF 60 / 90

Fluids

Please indicate with orderFlo

Cooling capacity see diagrams on page







3 µm 13/10

6 µm 14/10

10 µm 15/11

w rate BKF 60 57 l/minBKF 90 86 l/min

Pressure 10 bar

Suction height 2 m

Relief valve setting 3,5 bar

Indication pressure 2.2 bar

E-motor* 230 / 400 V, 50 Hz ± 5%

276 / 480 V, 60 Hz ± 5%

Protection class IP 55

Power 2.2kW

Current (at 400V / 50 Hz)



Weight 28 kg

Mineral oil according to DIN 51524

Phosphate ester HFD-R according to CETOP RP 77 H

3840003 N 0400 DN 3

3840006 N 0400 DN 6

3840010 N 0400 DN 10

5**achievable cleaniness according to ISO 4406

at volume V= 300 l and 24 h operating time (approx.)

*Other motors upon request

Part-No. Description

Part-No. Filter element Pore size Cleaniness**

DE 38 000201/2014/6

Dimensions (mm)

Installation hints:--

-

All threads according to DIN EN ISO 228If installed on the side of a reservoir make sure that the pump gets free flow of oil inthe suction lineMake sure that indicator is visible when installing on tank top

Filter housing NG400

Plate heat exchanger

Drain plug for filter housingMounting holes 4x Ø10

Oil in

e-motor 2,2kW IE24-poles/ Bgr. 100

Oil outWater inG1

Water outG1

Contamination indicator(Option)

605

280

22

430

20

565

330

230/400 50Hz +/-5%276/480 60Hz +/-5%

G1 1/2

68

G1 1/4 5772

BWT B25x30-S

41

479

F0

00

65

2

Performance curves BKF 18 - 90

Cooling performance BKF 18




DE 38 000201/2014/6

� t 40 °Ce

� t 40 °Ce

� t 40 °Ce

� t 40 °Ce

� t 30 °Ce

� t 30 °Ce

� t 30 °Ce

� t 30 °Ce

� t 20 °Ce

� t 20 °Ce

� t 20 °Ce

� t 20 °Ce

H O l/min2

H O l/min2

H O l/min2

H O l/min2

0

1

2

3

4

5

6

7

8

9

2 5 7 10 12

kW

0

2

4

6

8

10

12

14

5 7 10 14 17 21

kW

0

5

10

15

20

25

30

35

40

5 10 15 20 25 30 35

kW

0

10

20

30

40

50

10 15 20 25 30 35 40 45 50

kW

schematic BKF 18/30accessories

optional portmanometerorpressureindicator

inlet outlet

waterin / out

schematic BKF 60/90accessories

optional portmanometerorpressureindicator

waterin / out

outletinlet

DE 38 000201/2014/6

Planning hints

Installation Location

Mounting

Tubing

When mounting the BKF outdoors adequate weather protection is necessary. Leave access for servicing.

BKF’s are mounted with four bolts. The strength of the base has to be strong enough to carry the BKF.

Tubing to the system has to be free of tension and vibration. This will be maintained by using flexible hoses.

Take care of local laws concerning environment protection due to accidental leakage (for example, by using drip pans).

F000299E

M

G1 ½ G 1

VA-M

VA-E

G 1

G1/4

F000633

VA-M

VA-E

M

G3/4

G1 G3/4

G1/2

G1/4

bkf off-line filter / cooler unit - bpkk...de 38 0002 01/2014 page 1/6 bkf off-line filter / cooler...

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