Page 181 - Schroeder - Hydraulic And Lube Filtration

Single Pass Filter Kit 3K9

Patent No. 7,604,738 for connecting end cap

Type Fluid Appropriate Schroeder Media Fluid GH
Petroleum Based Fluids All Z-Media and ASP media (synthetic) Compatibility
®
®
High Water Content All Z-Media and ASP media (synthetic) RLT
Invert Emulsions 10 and 25 µ Z-Media and 10 µ ASP media (synthetic)
®
®
Water Glycols 3, 5, 10 and 25 µ Z-Media and all ASP media (synthetic) KF5
Phosphate Esters All Z-Media (synthetic) with H (EPR) seal designation and 3 and 10 µ
®
E media (cellulose) with H (EPR) seal designation and all ASP Media (synthetic)
Skydrol ® 3, 5, 10 and 25 µ Z-Media (synthetic) with H.5 seal designation and W media (water SRLT
®
removal) with H.5 seal designation (EPR seals and stainless steel wire mesh in element, ®
and light oil coating on housing exterior) and all ASP media (synthetic) Skydrol is a registered
trademark of Solutia Inc.
K9
Element
Element Element selections are predicated on the use of 150 SUS (32 cSt)
Pressure Series Part No. petroleum based fluid and a 40 psi (2.8 bar) bypass valve. Selection 2K9
Based on
KZ1 1KZ1 2KZ1 †
Flow Rate
KZ3 1KZ3/KAS3/KKAS3/27KAS3 3K9
To
900 psi Z- ® KZ5 1KZ5/KAS5/KKAS5/27KAS5
(60 bar) Media KZ10 1KZ10/KAS3/KKAS3/27KAS3
QF5
KZ25 1KZ25
gpm 0 20 40 60 80 100
Flow 3QF5
(L/min) 0 50 150 250 380
† Double and triple stacking of K-size elements can be replaced by single KK & 27K elements, respectively.
Note: Contact factory regarding use of E media in High Water Content, Invert Emulsion and Water Glycol QFD2
Applications. For more information, refer to Fluid compatibility: Fire Resistant Fluids, pages 19 and 20.
QFD5
∆P housing ∆P element Pressure
K9 ∆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 QF15

1K 2K/KK 3K/27K Based on
K25 .02 .01 .01 Flow Rate QLF15
KZ1 .20 .10 .05 and Viscosity
KZ3/KAS3 .10 .05 .03
KZ5/KAS5 .08 .04 .02 SSQLF15
KZ10/KAS10 .05 .03 .02
KZ25 .04 .02 .01
1K 2K
KZW1 .43
KZW3 .32 .16
KZW5 .28 .14
KZW10 .23 .12
sp gr = specific gravity
KZW25 .14 .07
Sizing of elements should be based on element flow
information provided in the Element Selection chart above. If working in units of bars & L/min, divide above factor by 54.9.
Viscosity factor: Divide viscosity by 150 SUS (32 cSt).
∆P filter = ∆P housing + ∆P element
Exercise:
Determine ∆P at 80 gpm (303 L/min) for
3K9209EDBBP24P24 using 150 SUS (32 cSt) fluid.
Solution:
∆P housing = 18.0 psi [1.2 bar]
∆P element1 = 80 x .02 = 1.6 psi [0.1 bar]

∆P element2 = 80 x .03 = 2.4 psi [0.2 bar]

∆P element3 = 80 x .05 = 4.0 psi [0.3 bar]

∆P total = 18.0 + 1.6 + 2.4 + 4.0 = 26.0 psi [1.8 bar]
SCHROEDER INDUSTRIES 179