Page 101 - Schroeder - Hydraulic And Lube Filtration

Base-Ported Pres sure Fil ter KF30

Type Fluid Appropriate Schroeder Media Fluid NF30
®
Petroleum Based Fluids All E media (cellulose), Z-Media and ASP Media (synthetic) Compatibility NFS30
High Water Content All Z-Media and ASP Media (synthetic)
®
®
Invert Emulsions 10 and 25 µ Z-Media (synthetic), 10 µ ASP Media YF30
®
Water Glycols 3, 5, 10 and 25 µ Z-Media (synthetic) and all ASP Media
®
Phosphate Esters All Z-Media and ASP Media (synthetic) with H (EPR) seal designation and 3 and CFX30
10 µ E media (cellulose) with H (EPR) seal designation
Skydrol ® 3, 5, 10 and 25 µ Z-Media (synthetic) and all ASP Media (synthetic) with H.5 seal PLD
®
designation and W media (water removal) with H.5 seal designation (EPR seals and ®
stainless steel wire mesh in element, and light oil coating on housing exterior) Skydrol is a registered DF40
trademark of Solutia Inc.
Element Element selections are predicated on the use of 150 SUS (32 cSt) Element CF40
Pressure Series Part No. petroleum based fluid and a 40 psi (2.8 bar) bypass valve. Selection
Based on
K3 1K3 2K3† 3K3 See MKF50 PF40
E Flow Rate
Media K10 1K10 2K10† 3K10† 3K10† See MKF50
K25 1K25 2K25† RFS50
To KZ1 1KZ1 2KZ1† 3KZ1†
3000 psi RF60
(210 bar) KZ3 1KZ3/KAS3/KKAS3/27KAS3 2KZ3† 3KZ3†
Z-
Media ® KZ5 1KZ5/KAS5/KKAS5/27KAS5 2KZ5† 3KZ5† CF60
KZ10 1KZ10/KAS10/KKAS10/27KAS10 2KZ10† 3KZ10†
KZ25 1KZ25 2KZ25† CTF60
gpm 0 25 50 75 100 125 150
Flow VF60
(L/min) 0 100 200 300 400 500 570
† Double and triple stacking of K-size elements can be requires 2" porting (P32 or F32)
replaced by single KK & 27K elements, respectively. LW60
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 KF30
Applications. For more information, refer to Fluid Compatibility: Fire Resistant Fluids, pages 19 and 20.
∆P housing ∆P element Pressure TF50
KF30 ∆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 KF50
Based on
1K 2K/KK 3K/27K Flow Rate
K3 .25 .12 .08 and Viscosity KC50
K10 .09 .05 .03
K25 .02 .01 .01 MKF50
KZ1 .20 .10 .05
KZ3/KAS3/KKAS3/27KAS3 .10 .05 .03 KC65
KZ5/KAS5/KKAS5/27KAS5 .08 .04 .02
KZ10/KAS10/ .05 .03 .02
KKAS10/27KAS10 NOF30-05
KZ25 .04 .02 .01
sp gr = specific gravity KZX10 .08 .04 .03 NOF50-760
Sizing of elements should be based on element flow
information provided in the Element Selection chart above.
1K 2K FOF60-03
KZW1 .43
KZW3 .32 .16 NMF30
∆P filter = ∆P housing + ∆P element KZW5 .28 .14
Exercise: KZW10 .23 .12 RMF60
Determine ∆P at 75 gpm (285 L/min) for KZW25 .14 .07
KF302K10PD using 200 SUS (44 cSt) fluid. If working in units of bars & L/min, divide above
factor by 54.9. Cartridge
Solution: Viscosity factor: Divide viscosity by 150 SUS (32 cSt). Elements
∆P housing = 7.0 psi [.50 bar]
∆P element = 75 x .05 x (200÷150) = 5.0 psi HS60
or
= [285 x (.05÷54.9) x (44÷32) = .35 bar]
∆P total = 7.0 + 5.0 = 12.0 psi MHS60
or
= [.50 + .35 = .85 bar] KFH50

SCHROEDER INDUSTRIES 99