Krone - KDF-K - Double Filter Datasheet

Application areasThe KDF duplex filter can be used in pressure and suction modes and is versatile for coarse and fine filtration. It is characterized by continuous filter operation during the cleaning possibility. The filter is compatible with the KSF series. The filter com-bines the so-called housing sizes (GR) with the vari-ous nominal widths (DN) of the flange connection.KDF-K has a bolts and nuts lock and can also be delivered with screws and nuts as well as with a quick acting lever lock (medium-dependent - risk analysis required). Subsequent on-site retrofitting is also possible.Brief description and functionThe duplex filter, cast as a component, comprisestwo identical single filters, connected via a cock-switching device to a filter side or can be operated in parallel. Medium to be filtered enters the filter basket from the top and flows through the insert inside out.Dirt thus remains in the filter element.As a special version, the filter is also available with star filters (changed inflow).Safety instructionsFilters with lever locks are not suitable for the filtration of hazardous media (e.G. poisonous, in-flammable or corrosive). In such cases, screws and nuts must be selected as lid closures. Generally, use of filter with switching valve must be checked for hazardous media (leakage rate permitted by the design). KDF-K filters are not suitable for the filtration of gases.Check the filter for intended operation prior to usa-ge. Conformity assessment as per PED EN 97/23 EC must be done for changes in operating conditions or the media (kindly contact us for the same or run a risk analysis with conformity assessment).Commissioning- Check whether all screws and locks have been tightenedproperly.- Check the position of the switching lever (there is a covered on the switching valve, which defines the direction of flow and/or shows "in operation" on the filter pot. The handle must be fitted accordingly).- Venting: Venting device fitted in the housing of every single fil-ter is open till the fluid discharges. The filter is ready-to-operate after venting the single filter.Approvals3.1. Certificate, DGRL / TÜV, GL, LS, DNV, ABS, GOST/RTNKDF-KDuplex ? lterPN 16DN 15 – 125ANSI 1/2" – 5"JIS 15-125GOST 15-12502.2012 © by Krone Filter Solutions GmbH, subject to changesKrone Filter Solutions GmbHHerbert-Ludwig-Str. 1228832 Achim / GermanyTel: +49(0)4202 97 69 23Fax: +49(0)4202 97 69 27 filter@krone-filter.comwww.krone-filter.comDN 20 – DN 125 PN 16(plug switchover)E.g. Ductile ironDN 20 – DN 125 PN 16(plug switchover)E.g. Bronze0202.2012 © by Krone Filter Solutions GmbH, subject to changesCleaning/OperationNote: Since it is a pressure vessel, it is important to ensure that the container is without pressure prior to beginning of maintenance.1. As soon as the filter half is dirty (increasing dif-ferential pressure on the indicator or decreasing operating pressure in the system), the clean filter half is put into operation by gradual switching of the plug valve.2. Proceed with cleaning (removal of filter element) only after opening the venting device slowly and3. after opening the drain plug and draining the remaining fluid from the container (filter side to be cleaned):Caution: note maximum differential pressure of the filter (standard Dp = 1 bar)CleaningThe filter side to be cleaned must be depressurized (open vent carefully after switching over to the other filter side)1. Then lift by loosening the filter cap or the screws and nuts of the cover of the filter half to be cleaned.2. Note cover gasket integrity during assembly, replace if necessary.Important: Duplex filter with switching valves have a permissible leakage rate, leakage rate of the KDF filter at delivery condition at max. design pressure (Pdesign) is approx. 20% of the contents of the vessel in approx. 30 minutes.INFORMATION: Hence, do not leave the opened filter unattended and if required, keep an al-ready cleaned reserve filter element ready for replacement.Important information for switchoverFor media having corrosion effect on the material of the filter, switching must be actuated regularly (2-3 times) per week.Alternative to the standard switching valves in EN GJS-500-7, switching valves in bronze, stain-less steel 1.4571 and/or 1.4408 (SS316) are also available.VesselDIN EN GJS-500-7 / (GGG-50)alternatively annealed GJS-400-18 / (GGG 40.3)Alternative vessel materialRG 5/10 G-CuSn5(10)ZnPbHeatingFilters may be additionally fitted with heaters for smooth start and continuous reduction in the viscosity of the medium to be filtered.? Large ergonomic switching lever? Smooth switching due to smoothened surface? Combination of connection flanges to housing sizes/ filter areas? Dirt remains in the basket strainer? Medium-resistant switching in – nodular cast iron– bronze– polymer coated?????Advantages of KDF-K0302.2012 © by Krone Filter Solutions GmbH, subject to changesTechnical data and dimensions 1Flange opposite duplex filter with switching valvesOption differentialpressure indicatorEA-A (1:2)Switching valve marking points towards filter vessel in operation.Fit switching lever accordingly.Inflow® Outflow®Switching direction®®Outflow Stop**Switching direction of the switching lever can be changed by changing the stop.300 mmVariant lid withscrews and nutsInflowVariant lever lockOverhead space S04Technical data and dimensions 2Flange opposite duplex filter with switching valves02.2012 © by Krone Filter Solutions GmbH, subject to changes* all dimension subject to modi? cation, as built in approved Krone Filter Solutions drawing.Dimensions only for information – certi? ed dimensions in approved Krone Filter Solutions installation drawing.Housing-sizeNominaldiameter FlangeconnectionPressure stage ØD1 A B C D EDN Lock ScrewsRange ofthe basemm bar bar mm mm mm mm mm mm 2 15 16 16 102 185 242 80 95 2902 20 16 16 102 185 242 80 95 2902 25 16 16 102 185 242 80 95 2903 32 16 16 127 225 298 97,5 127,5 3643 40 16 16 127 225 298 97,5 127,5 3643 50 16 16 127 225 298 97,5 127,5 3644 50 10 16 168 267 328 120 185,0 5044 65 10 16 168 267 328 120 185,0 5046 80 10 16 228 385 478 170 220 6556 100 10 16 228 385 478 170 220 6556 125 10 16 228 385 478 170 220 655Housing-sizeF S H L M Flow rate Contents Filter area Pleated* WeightDiameterFilter over-head spaceHeightInstallation lengthLever length at 2.5 m/sBasket strainermm mm mm mm mm m3/h L cm2 cm2 kg 2 14 450 400 175 300 3 1,2 270on request212 14 450 400 175 300 3 1,2 270 222 14 450 400 175 300 4,5 1,2 270 223 14 550 460 225 300 7 3,5 440 383 14 550 460 225 300 12 3,5 440 383 14 550 460 225 300 12 3,5 440 384 14 650 490 305 500 18 6,5 740 694 14 650 490 305 500 30 6,5 740 706 14 900 720 390 500 45 15 1350 1756 14 900 720 390 500 70 15 1350 1756 14 900 720 390 500 70 15 1350 175Foto shows optional - pressure equalization pipefor easy switchingMagnetic piston type pressuregauges for differential pressure05Technical dataAccessoryWe produce and deliver additional design and material variants on request.We solicit your request. Standard version Special versionand/or additional features Filter element Basket strainer insert Dual strainer, star strainer Filter unit 25 - 1000 µm: Fabric with support plate, 1 mm onwards: Perforated plate, 1 mm onwards: Perforated plate with round holeFilter element 25 – 2,000 µm, 1-10 mmFilter cap Stud screws and nuts LockVenting device Screw Ball valve Draining device Screw Ball valve Connection Flange as per DIN 2532/33 shape BFlange position: as against the heightANSI, JIS, as per customer specificationMaterial: e.G. ANSIHousing and lid DIN EN GJS-500-7 / (GGG-50) RG 5/10/G-CuSn5(10)ZnPbGGG-40.3 / EN GJS 40-18 LTLid gasket O-ring: NBR FPM, EPDM, PTFE Perforated plate/fabric St, St/1.4401, 1.4301, 1.4301/1.4401 1.4571/-, 1.4571/1.4401, MS/-, MS/BZSwitching valves (up to DN 100)EN GJS-500-7 / (GGG-50) RG5 G-CuSn5ZnPb1.4571Venting Stainless steel screw 1/4“ Brass, ball valve, as per specificationAdditional filter - Magnetic filter elementHeater - Vapour, oil, warm water or electric heatingZinc protection - for sea water filter Differential pressure indicator- optical, electrical, contactsSurface treatmentinternal: Anti-corrosion primeror untreatedAnticorrosion oil, epoxy resin coating, rubber coatingSurface treatmentexternal: Synthetic resin coating RAL 5010 RAL as per specification 02.2012 © by Krone Filter Solutions GmbH, subject to changes02.2012 © by Krone Filter Solutions GmbH, subject to changesKF-PCIII-02-2012-PP-Rev. 1.5Example KDF-V NW 150 cast iron from product range NW 100-500 Example KDF-W NW 80 SS316 from product range NW 25-50006DN/NW 80 unit with Dp Indicator Dp-MAG