[email protected] www.krone-filter.com Application areas The 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 combines the so-called housing sizes (GR) with the various 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. DN 20 – DN 125 PN 10/16 (plug switchover) E.g. Ductile iron DN 20 – DN 125 PN 10/16 (plug switchover) E.g. Bronze Brief description and function The duplex filter, cast as a component, comprises two identical single filters, connected via a cockswitching 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). Commissioning Safety instructions Filters with lever locks are not suitable for the filtration of hazardous media (e.G. poisonous, inflammable 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 usage. 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). - Check whether all screws and locks have been tightened properly. - 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 filter is open till the fluid discharges. The filter is ready-to-operate after venting the single filter. Approvals 3.1. Certificate, DGRL / TÜV, GL, LS, DNV, ABS, GOST/RTN 05/2015 © by Krone Filter Solutions GmbH, subj

Note: Since it is a pressure vessel, it is important to ensure that the container is without pressure prior to beginning of maintenance. DIN EN GJS-500-7 / (GGG-50 / ASTM 80-55-06) alternatively annealed GJS-400-18 / (GGG 40.3) 1. As soon as the filter half is dirty (increasing differential 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 and 3. if the filter is build with a pressure equalization...

Technical data and dimensions 1 Flange opposite duplex filter with switching valves Option differential pressure indicator Variant lid with screws and nuts Variant lever lock Switching valve marking points towards filter vessel in operation. Fit switching lever accordingly. *Switching direction of the switching lever can be changed by changing the stop. 03 05/2015 © by Krone Filter Solutions GmbH, subject to change

Technical data and dimensions 2 Flange opposite duplex filter with switching valves Nominal diameter Flange connection Pressure stage Flow rate Filter overhead space Installation length Lever length Filter area Basket strainer * all dimension subject to modification, as built in approved Krone Filter Solutions drawing. Dimensions only for information – certified dimensions in approved Krone Filter Solutions installation drawing. Foto shows optional - pressure equalization pipe for easy switching 04 05/2015 © by Krone Filter Solutions GmbH, subject to c

Technical data Standard version Special version and/or additional features Filter element Basket strainer insert Dual strainer, star strainer, wedged wire Filter unit 25 - 1000 μm: Fabric with support plate, 1 mm onwards: Perforated plate, 1 mm onwards: Perforated plate with round hole Stud screws and nuts Venting device Ball valve Draining device Ball valve Flange as per EN 1092-1 11B Flange position: as against the height ANSI, JIS, as per customer specification GOST Perforated plate/fabric EN GJS-500-7 / (GGG-50 / ASTM 80-55-06) oil version EN GJS-500-7 coated cock with Magna Coat® polymer/flourpolymer...

Example KDF-V NW 100 cast iron from product range NW 100-500 Example KDF-W NW 80 SS316 from product range NW 25-500 06 05/2015 © by Krone Filter Solutions GmbH, subject to change DN/NW 80 unit with Dp Indicator Dp-MAG