Applied Product Catalog 2017 2018 Page 730 Hydraulic Products

730 Call your local Applied service center to order at 1-866-351-3464 or visit us online at Applied.com Hydraulic Products Selecting a filter assembly that is sized properly for the viscosity and amount of fluid that will be flowing through it is critical. An improperly sized filter assembly can result in short filter life, poor filtration efficiency, collapsed filter elements, static discharge (which leads to carbon particle generation) and poor machine performance. A properly sized filter assembly exhibits an acceptable clean element pressure drop. Clean element pressure drop (CEPD) is the measurement of unavoidable energy loss resulting from fluid flowing through the filter when it is new and clean. Table 1 shows the maximum acceptable pressure drop guidelines recommended. Pressure drop varies greatly with media type, viscosity and flow rate. Generally, as tighter media is selected for an application, CEPD increases. When oil viscosity increases, pressure drop increases. Viscosity increases when oil cools, like when a machine is shut down or as ambient temperature changes. When flow rate increases, pressure drop increases. Table 2 lists acceptable maximum flow rates for the filter housings and elements offered in this catalog. Use this table as a selection guide, and remember a filter cannot be oversized but it can easily be undersized. So, choose a filter housing that exhibits a higher flow than what you intend to pass through it by at least a factor of 1.2 or 20%. FILTER ASSEMBLY SELECTION GUIDE Filter Assembly Type Maximum Acceptable Pressure Drop Pressure Filter w/ by-pass valve >50 psid 10 psid Return or Lube Filter w/ by-pass valve <50 psid 5 psid Housing without element 10 psid Table 1 Housing Series Element Length (in) Head Only No. 1 Media ISO 32 No. 1 Media ISO 68 No. 2 Media ISO 32 No. 2 Media ISO 68 No. 2-1/2 Media ISO 32 No. 2-1/2 Media ISO 68 Pressure Filters Maximum Flow Rate (gpm) HPK02 4 14 <5* <3** 5 3 7 4 HPK02 8 25 <12* <6** 12 6 24 14 FPK02 4 14 <5* <3** 5 3 7 4 FPK02 8 25 <12* <6** 12 6 24 14 HPK03 8 60 23 14 56 37 60 50 HPK04 8 80 25 10 58 35 80 50 HPK04 16 120 50 30 85 50 100 90 HPK05 26 200 90 70 185 155 n/a n/a Return Filters Maximum Flow Rate (gpm) HMK03 9.5 25 12 7 25 17 25 20 HMK04 9.4 35 16 10 35 26 35 30 HMK24 9.4 60 32 20 60 52 60 60 HMK05 11.6 50 45 25 50 50 HMK25 11.6 100 90 50 100 100 LPS04 5.35 30 18 12 n/a 18 12 LPS04 7.87 30 n/a 30 15 SP50 10.7 60 50 40 n/a 60 50 HBK05 10.7 60 50 28 60 60 SP80 10.7 120 100 80 n/a 120 100 TI12 3.82 60 n/a 10 5 TI25 9 60 22 12 40 23 60 45 HAK05 8 120 10 5 60 50 n/a n/a HAK05 16 120 20 10 120 100 n/a n/a HDK06 16 150 n/a 150 110 n/a n/a HFK08 18 300 28*** 18*** 225 200 300 200 HEK11 22 600 n/a 200 125 300 180 *ISO 32 is 150 SUS @ 100 F. ** ISO 68 is 278 SUS @ 100 F. *** No.1/2 Media. Max. Housing Pressure Drop: 10 psid Max. Clean Element Pressure Drop (Pressure Filter): 10 psid Max. Clean Element Pressure Drop (Return Filter w/ bypass valve <25 psi): 5 psid Note: Manufacturer does not publish clean element pressure drop for No. 1 media. Note that pressure drop may exceed 10 psid at these flow rates. Table 2 Hydraulic Filters

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