Krone Filter Bernoulli - Model KAF - Self-Cleaning Automatic Filter-Datasheet

KAFBernoulliSelf-Cleaning Automatic FilterNon-Contact CleaningDN 40 – DN 1000 | PN 2,5 – PN 25•••••InletoutletFlush outlet0109/2008 © by Krone Filter GmbH, subject to changeKrone Filter GmbHHerbert-Ludwig-Str. 12-1428832 AchimTel: +49 (0)4202 97 69 23Fax: +49 (0)4202 97 69 27info@krone-filter.comwww.krone-filter.comApplications The self-cleaning automatic KAF Bernoulli filter is a ver-satile self-cleaning, virtually maintenance-free filter for removal of particulate contaminants from highly polluted waters as well as process fluids e.g. from natural water sources (sea water, river water) and heating or cooling circuits and processes. It operates at a working pressu-re as low as 0.3 bar and is characterized by extremely low pressure loss of 0.09, for example, at a high flow rate, simple, robust design, with high performance, low weight, and space saving.from a working pressure of 0.3 barthe filter can be integrated in the pipe system in any installation positionfiltration stage = 160 microns (100 µ possible) - 100 mmBrief description of operationA specially shaped flushing disk gives rise to an increase in speed between the disk and strainer in the flushing process. The resulting local pressure drop causes internal evacuation of the contaminant particles from the strainer insert. Solid components are flushed out via the simultaneously opened flush valve. The filter is equipped with a differential pres-sure monitoring system that automatically triggers the flushing process before any blockages in the filter strainer cause significant flow reductions. The flushing process can also take place after a predeter-mined time.Filtrate flow is not interrupted in this process; the flushing volumes are low.The pressure drop in the system is minimal.Functional description of the cleaning processThe contaminated medium flows into the filter through the flan-ge marked inlet. The contaminated medium flows through the filter insert from the inside to the outside and exits out of the flange marked outlet as cleaned medium. The flushing phase of the filter is either activated when the set differential pressure is attained, or the flushing phase is activated after a set time interval. The flushing valve opens and larger contaminant particles are flushed out with the continuously flowing medium stream due to a pressure gradient. Subsequently the piston usually performs two strokes in the filter strainers, thereby increasing the speed between the piston and strainer wall. The contaminants are sucked off due to the resultant local pressure drop. The flushing time can be set by the controller according to the operating conditions, and flushing frequency depends on the level of contamination in the medium.The filter is installed in pipes using flanges. Ensure that the standard version of the filter is installed vertically or horizon-tally in a mechanically stress-free manner without additional loads. The medium must flow in the direction specified on the housing. Incorrect installation can cause filter malfunctions. If the contaminant drain pipe is laid with an ascending gradient ensure that the inlet pressure of the filter is at least a 0.3 bar higher than the counter pressure in the contaminant drain pipe (pay attention to the loss through friction in pipes). Before using with a medium other than the medium specified in the design, or for different operating data, the resistance of the materials of the parts and seals touched by the pressure-bearing membrane to the medium to be filtered must be checked by the customer; it may be neces-sary to consult with the manufacturer and to execute a conformity evaluation in accordance with PED EN 97 / 23 EC (if there is a CE-mark requirement).Operating instructions: The comprehensive instructions accompanying the filter must be followedElectronic standard multifunctional unit of the KAF filter. Alternatively Siemens S7 200 for controlling up to 10 filters.Installation0209/2008 © by Krone Filter GmbH, subject to changeTechnical dataStandard Special versionsFilter insert/filtration degree 100/160 µm (0.2 mm) – 10 mm additional on request e.g. 0.1 mmFilter cover Cover with hex bolts + nuts - Venting device - On requestDrain unit - On requestConnections DIN 2632 / 2633 PN 10/16 As specified by the customer (e.g. ANSI, JIS)Materials: - - Housing: PlasticStainless steelGRP / FRP (polyester-based fiber-reinforced plastic) 1.4571,steel Steel (rubberlined)Seals NBR On requestPerforated plate/slotted hole strainer 1.4571 / 1.4401 Titanium, Hastelloy, MonelFlushing disk POM - Piston rod 1.4404 Super Duplex 1.4410 / 1.4501Differential pressure switch Ms chem. nickel-plated Transmitter 4-20 mA,HART protocolVersion: - - Differential pressure switch Electrical with 1st contact for start of cleaning, protective class IP65Protection rating in Ex-conformant version (ATEX)Control Multi-function unit attached / not attachedExplosion-protected (ATEX), Siemens S7-200, Eexd230 V / 50 Hz On requestProtective class IP65 Protection class in Ex-conformant versionCylinder Pneumatically activated6 barsElectrical (depending on nominal diameter) (ATEX)Required compressed airContaminant outlet valve fittingShut-off valve 3.5 bar (Maximator), slanted seat, ball valveSurface treatment, internal: - - Steel Corrosion protection oil Chemonit rubberlinedVestosint Corrocoat, PolyglassStainless steel housing Glass bead blasting or blasted Pickled and passivatedGRP / FRP housing Chemical-resistant vinylester linerCorrocoat, PolyglassSurface treatment, external: - - Steel housing RAL 5010 blue Customer specificationStainless steel housing Glass bead blasting or blasted - Housing GRP / FRP GRP outer color or through-colored Customer specificationPolyurethane paintRange of application of the materials according to temperature:- - Steel and stainless steel housing Temperature limits: In accordance with PED or AD2000 legislation -20°C to 95°CSpecial version: +120°CGRP housing Temperature limits: -70°C to +90°C Special version: +120°CDesign/Certification In accordance with PED 97/23 EC (CE)ASME-Code, ATEX, PEDpressure loss in bar0,350,250,150,120,090,070,050,030,020,018.000pressure loss03InlettoutletFlush outlet09/2008 © by Krone Filter GmbH, subject to changeKF-PCIII-08-2008-PPFlanges in accordance with DIN 2632 / 2633 PN10-16 or ANSI 16.5 150 lbs Dimensioning example (0.22 mm filtration degree) / selection chart at 500 m3/h, the use of a DN 200 or DN 250 is recom-mended at 200 µm.*Dependent on pressure phase, **Rubberlined on request, ***Dependent on filtration degreeFilter dimensioning chartMaterial D1 D2 A B C D E F G Weight *Flow rate ***Example flushing volume/backflush (adjustable)DN DN mm mm mm mm mm mm mm ca. kg m3 / h m3VA / steel ** 50 25 310 385 520 1020 1100 200 135 25 8 – 45 0,0465 25 310 385 520 1020 1100 200 135 30 8 – 45 0,0480 40 405 510 620 1100 1200 235 190 35 15 – 80 0,06100 40 430 480 680 1305 1400 240 240 40 40 – 120 0,09150 40 490 680 810 1450 1550 260 255 80 50 – 300 0,2200 80 590 790 1010 1950 2050 290 280 110 100 – 500 0,54250 100 740 980 1250 2180 2280 345 330 165 160 – 800 1,2300 100 890 1155 1440 2510 2610 375 385 200 200 – 1100 2,2350 100 950 1260 1481 2467 2500 410 410 300 300 – 1500 2,6400 100 1010 1325 1535 3010 3100 485 465 450 400 – 2000 4,5500 150 1590 2205 2350 3800 3900 695 555 1600 800 – 3000 9,5600 200 1540 3055 3490 4650 4750 900 805 2300 1200 – 4000 13,5700 200 2650 3255 3750 5650 5750 1200 1100 2800 1500 – 5000 17,0800 200 2550 3300 4195 6660 7000 1060 940 3200 2500 – 8000 24,01000 4100GFK 40/50 25 400 540 650 1200 1300 160 160 15 8 – 45 0,0465 25 400 540 650 1200 1300 160 160 17 8 – 45 0,0480 40 440 600 720 1300 1400 190 175 20 20 – 90 0,06100 40 460 640 800 1370 1450 220 200 25 40 – 120 0,09150 50 500 720 890 1680 1750 250 240 30 70 – 300 0,2200 80 600 870 1130 2000 2100 325 300 60 150 – 500 0,54250 100 660 1000 1290 2300 2400 370 330 90 200 – 700 1,2300 100 900 1280 1600 2800 2900 430 390 140 300 – 1000 2,2350 100 1000 1430 1810 3058 3000 500 450 205 300 – 1500 2,6400 100 1220 1670 2100 3600 3700 550 500 220 500 – 1800 4,5500 150 1680 2220 2700 4300 4400 650 580 550 800 – 2500 9,5600 200 1950 2570 3120 4500 4600 780 700 750 1200 – 4000 13,5700 200 2300 2990 3650 4750 4850 920 820 1000 1500 – 5000 17,0800 200 2550 3300 4100 6660 7000 1060 940 1400 2500 – 6500 24,01000 250 3100 3990 5100 – – 1360 1140 1800 5000–9000 38,0On requestOn request On request