Page 73 - Schroeder - Hydraulic And Lube Filtration

Top-Ported Pressure Filter PF40

Type Fluid Appropriate Schroeder Media Fluid NF30
Petroleum Based Fluids All E media (cellulose) and Z-Media (synthetic) Compatibility NFS30
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®
High Water Content All Z-Media (synthetic)
Invert Emulsions 10 and 25 µ Z-Media (synthetic) YF30
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Water Glycols 3, 5, 10 and 25 µ Z-Media (synthetic)
Phosphate Esters All Z-Media (synthetic) with H (EPR) seal designation CFX30
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PLD
Element Element selections are predicated on the use of 150 SUS (32 cSt) Element DF40
Pressure Series Part No. petroleum based fluid and a 40 psi (2.8 bar) bypass valve. Selection
Z1 5HZ1 9HZ1 Based on CF40
Flow Rate
Z3 5HZ3 9HZ3
To Z-
4000 psi ® Z5 5HZ5 9HZ5 PF40
(275 bar) Media
Z10 5HZ10 9HZ10
Z25 5HZ25 9HZ25 RFS50
gpm 0 10 20 30 40 50
Flow RF60
(L/min) 0 50 100 150 190
Shown above are the elements most commonly used in this housing. CF60

CTF60
∆P housing ∆P element Pressure
PF40 ∆P housing for fluids with sp gr = 0.86: ∆P element = flow x element ∆P factor x viscosity factor Drop VF60
Information
El. ∆P factors @ 150 SUS (32 cSt):
Based on LW60
5H 9H Flow Rate
Z1 2.01 1.07 and Viscosity KF30
Z3 0.77 0.41
Z5 0.65 0.35 TF50
Z10 0.44 0.23
Z25 0.29 0.15 KF50
ZX3 1.17 0.62
ZX10 0.50 0.26 KC50
ZX25 0.27 0.14
If working in units of bars & L/min, divide above MKF50
factor by 54.9.
Viscosity factor: Divide viscosity by 150 SUS (32 cSt). KC65

NOF30-05
sp gr = specific gravity
Sizing of elements should be based on element flow information provided in the Element Selection chart above.
NOF50-760

FOF60-03
Notes ∆P filter = ∆P housing + ∆P element
Exercise: NMF30
Determine ∆P at 20 gpm (76 L/min) for
PF405HZ10D5 using 200 SUS (44 cSt) fluid.
RMF60
Solution:
∆P housing = 2.5 psi [.17 bar] Cartridge
∆P element = 20 x .44 x (200÷150) = 11.7 psi Elements
or
= [76 x (.44÷54.9) x (44÷32) = .84 bar]
∆P total = 2.5 + 11.7 = 14.2 psi HS60
or
= [.17 + .84 = 1.01 bar] MHS60

KFH50

SCHROEDER INDUSTRIES 71