Krf_Datasheet_en.pdf

7/30/2019 Krf_Datasheet_en.pdf

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09/2008 by Krone Filter GmbH, subject to change

Krone Filter GmbH

Herbert-Ludwig-Str. 12-14

28832 Achim

Tel: +49 (0)4202 97 69 23

Fax: +49 (0)4202 97 69 27

[email protected]

www.krone-filter.com

Applications

The KRF backflush filter is a versatile self-cleaning,

maintenance-free filter for liquid media.

Brief description and operation

The electronic control monitors the differential pres-

sure applied to the strainer by means of a differenti-

al pressure switch. If the preset differential pressure

of 0.2 - 2 bar (depending on the design) is attained,

the cleaning function is triggered. In addition the

cleaning function can be triggered by a timer ormanually at the touch of a button, depending on the

operating conditions.

The contaminated medium flows through the flange

marked inlet into the filter. The contaminated me-

dium flows through the filter insert from the inside

to the outside and escapes from the flange marked

outlet as cleaned medium.

The reversible flow nozzle lowers the interior of the

strainer insert and simultaneously the contaminant

outlet valve is opened so that a pressure gradient oc-curs relative to the atmosphere. This initiates strainer

cleaning. The filter is designed in such a manner that

the drop in pressure for optimized cleaning can be

kept extremely low.

Filtration is not interrupted during the backflush

process in a system. After the set flushing period

elapses the contaminant outlet valve closes automa-

tically.

Installation

The filter is installed in pipes by means of flanges.Ensure that the standard version of the filter is

installed vertically and a mechanically tension-free

manner without additional loads. The medium must

flow in the direction specified on the housing. Incor-

rect installation can cause separator malfunctions.

The contaminant outlet pipe must be laid with no

pressure, without cross section reduction, without an

ascending gradient, and, if possible with a descen-

ding gradient.

KRFBACKFLUSH FILTER

DN 32 DN 400 (ANSI 1 1/2 20)

PN 16 PN 40

Fully automatic backflush

filter DN 32-200

Backflush filter

with double insert


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Technical data

We manufacture and deliver additional design and material variants on customer request.

We request your enquiry.

Standard version Special version or optional extras equipment

Filter insert 20 3000 m

Filter catch Cover with bolts and nuts -

Venting device Screw Ball valve

Drain unit Screw Ball valve

Connections Flange in accordance with DIN 2632/ Form C ANSI or in accordance with customer specifica-tions

Materials: e.g. ANSI

Housing GGG-40 1.4571, H II steel, CrNi, 1.0425

Seals NBR PTFE / FPM, other

Perforated plate/meshCleaning nozzle

1.4301/1.4404GGG 40/oG-CuSN 10/12

As specif ied by customer

Drain valve - St, Ms, A 2, A 4

Electric gear motor 3 x 400 V / 50 Hz protection class IP 65 As specified by customer

Control not attachedWith transformer 500 V / 400 V / 230 V 50Hz / 60 Hz, protection class IP 65, program-mable

Attached on the f ilter as specif iedby the customer

Contaminant outlet valve Rg 5, A 4Electro-pneumatic (230 V - 6 bar) /(24 V - 6 bar)

Protection class IP65Electrical Ex protection version, ATEX

Surface treatment

Interior:

Steel housingGGG-40

without epoxy-resin paint, hard rubber, ECTFE, glassbead blasted

Surface treatment

Exterior:

Housing, GGG-40,Steel housing steel

Synthetic resin paint RAL 5010 blue -

Stainless steel housing Pickled and passivated Glass bead blasted


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Technical data and dimensions 1

03

DNFilter-surface

cm2a b *c e f g h k l

ap-prox.

mp q u z Weight

kgCapacity

liters

Oil/emulsion

throughputat

60 m3/h

Viscosit yWater

at200 m3/h

32 530 108 73 43 75 14 50 740 190 14 378 126 1/2" 84 660 39 2.1 5 5

40/50 1.310 113 120 49/61 75 14 90 810 285 13 410 176 1/2" 115 750 54 5.5 10 15

65 3.100 130 160 77/90 123.5 14 100 938 350 12 550 270 1/2" 190 900 97 19 25 35

806.280 195 250

*90150 18 140 1.125 650 20 560 346 3/4" 250 1.180 205 45 50 90

100 100

125 10.390 236 280 125 175 23 200 1.300 760 20 650 400

1"

270 1.600 250 80 85 130

15014.750 276 350

*169225 23 200 1.421 820 20 740 516 350 1.680 495 154 120 350

200 200

250-800 Larger units on request

Krone backwash filter with single insert


Design pressure 16 bar

Test pressure 32 bar

Design temperature 180 C


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Technical data and dimensions 2

04

DNFilter-surface

cm2a b e f g h k

approx.m

approx.n

p r s t u z kg Liters

Oil/emulsion

throughputat 60 m3/h

Viscosit yWater

at 200 m3/h

125 11.050 169 320 335 12 x 18 850 1.230 770 350 240 406

3/4" 1/4 1"

400 1.500 240 7o 90 200

200 18.050 202 365 335 12 x 18 992 1.490 820 410 270 457 450 1.755 320 110 145 395

250 28.100 240 430 445 12 x 22 1.188 1.645 950 437 375 559 500 2.000 400 175 225 600

300 38.500 282 500 515 1 6 x 26 1.230 1.820 1.070 490 410 650 1" 1/2" 11/2" 580 2.250 580 290 310 890

350 53.500 305 550 550 20 x 22 1.462 1.920 1.170 515 470 750 1" 1/2" 11/2" 620 2.400 920 390 430 1.200

Krone reversible filter with double sieve


KF-PCIII-08-2008-PP

Perm. operating pressure 16 bar

Test pressure Germ. Lloyd 24 barTest pressure PED 97/23 EG 23 bar

Permissible operating pressure 120 C

Documents

Krf_Datasheet_en.pdf