Page 227 - Schroeder - Hydraulic And Lube Filtration

Return Line Filter with Threaded Bowl KL3

Type Fluid Appropriate Schroeder Media Fluid IRF
Petroleum Based Fluids All E media (cellulose), Z-Media and ASP media (synthetic) Compatibility TF1
®
®
High Water Content All Z-Media and ASP media (synthetic)
Invert Emulsions 10 and 25 µ Z-Media (synthetic), 10 µ ASP media (synthetic) KF3
®
Water Glycols 3, 5, 10 and 25 µ Z-Media (synthetic), 3, 5, and 10 µ ASP media (synthetic)
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Phosphate Esters All Z-Media with H (EPR) seal designation and all ASP media (synthetic)
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KL3
Element
Element selections are predicated on the use of 150 SUS (32 cSt) LF1–2"
Element petroleum based fluid, SAE-24 porting for K-size elements, SAE-32 Selection
Pressure Series Part No. porting for 18LC elements, and a 30 psi (2.1 bar) bypass valve. Based on
K3 1K3 2K3 3K3 Flow Rate MLF1
K10 1K10 2K10 3K10
E Media K25 1K25 2K25 RLD
18LC3
18LC10
KZ1 1KZ1 2KZ1 3KZ1 GRTB
To KZ3 1KZ3 2KZ3 3KZ3
300 psi KZ5 1KZ5 2KZ5 3KZ5 MTA
(20 bar) KZ10 1KZ10 2KZ10 3KZ10
Z- KZ25 1KZ25 2KZ25
Media ® 18LCZ1 18LCZ1 MTB
18LCZ3 18LCZ3
18LCZ5 18LCZ5
18LCZ10 18LCZ10 ZT
18LCZ25 18LCZ25
gpm 0 20 40 60 80 100 120 KFT
Flow
(L/min) 0 100 200 300 400 455
RT
Shown above are the elements most commonly used in this housing.
Note: Contact factory regarding use of E media in High Water Content, Invert Emulsion and Water Glycol
Applications. For more information, refer to Fluid Compatibility: Fire Resistant Fluids, pages 19 and 20. RTI
Pressure LRT
∆P housing ∆P element
KL3 ∆P housing for fluids with sp gr = 0.86: ∆P element = flow x element ∆P factor x viscosity factor Drop
El. ∆P factors @ 150 SUS (32 cSt): Information ART
Based on
1K 2K 3K Flow Rate
K3 .25 .12 .08 BFT
K10 .09 .05 .03 18LC3 .12 and Viscosity
K25 .02 .01 .01 18LC10 .05
KZ1 .20 .10 .05 18LCZ1 .10 QT
KZ3/KAS3 .10 .05 .03 18LCZ3 .05
KZ5/KAS5 .08 .04 .02 18LCZ5 .04
KZ10/KAS10 .05 .03 .02 18LCZ10 .03
KZ25 .04 .02 .01 18LCZ25 .02 KTK

1K 2K LTK
sp gr = specific gravity KZW1 .43
KZW3 .32 .16
Sizing of elements should be based on element flow KZW5 .28 .14 MRT
information provided in the Element Selection chart
above. KZW10 .23 .12
KZW25 .14 .07
∆P filter = ∆P housing + ∆P element If working in units of bars & L/min, divide above Accessories
Exercise: factor by 54.9. for Tank-
Determine ∆P at 60 gpm (225 L/min) for Viscosity factor: Divide viscosity by 150 SUS (32 cSt). Mounted
KL32KZ10P24 using 200 SUS (44 cSt) fluid. Filters
Solution:
∆P housing = 6 psi [.4 bar] PAF1
∆P element = 60 x .03 x (200÷150) = 2.4 psi
or
= [225 x (.03÷54.9) x (44÷32) = .17 bar] MAF1
∆P total = 6 + 2.4 = 8.4 psi
or
= [.4 + .17 = .57 bar] MF2

SCHROEDER INDUSTRIES 225