SCHROEDER INDUSTRIES 73
NF30
NFS30
YF30
CFX30
PLD
DF40
CF40
PF40
RFS50
RF60
CF60
CTF60
VF60
LW60
KF30
TF50
KF50
KC50
MKF50
KC65
NOF30-05
NOF50-760
FOF60-03
NMF30
RMF60
Cartridge
Elements
HS60
MHS60
KFH50
Flow Rating:
Up to 30 gpm (115 L/min) for 150 SUS (32 cSt) fluids
Max. Operating Pressure:
5000 psi (345 bar)
Min. Yield Pressure:
15,500 psi (1070 bar), per NFPA T2.6.1
Rated Fatigue Pressure:
Contact Factory
Temp. Range:
-20°F to 225°F (-29°C to 107°C)
Bypass Setting:
Cracking: 40 psi (2.8 bar)
Full Flow: 56 psi (3.9 bar)
Porting Head:
Element Case:
Steel
Steel
Weight of RFS50-8R:
16.50 lbs. (7.5 kg)
Element Change Clearance:
3.0" (75 mm)
Manifold Mounted Pres sure Filter
RFS50
30 gpm
115 L/min
5000 psi
345 bar
Filter
Housing
Specifications
Applications
Features and Benefits
■
Manifold mounted high pressure filter
■
Offered in square head conventional
subplate porting
■
Direct mounting to customer’s manifold
■
Standard drain plug in bowl for easy
servicing
■
Various dirt alarm options available
Model No. of filter in photograph is RFS508R10O.
74 SCHROEDER INDUSTRIES
Manifold Mounted Pres sure Filter
RFS50
Metric di men sions in ( ).
Element DHC (gm)
8R3
6
8R10
7
8RZ1
33
8RZ3
26
8RZ5
51
8RZ10
29
8RZ25
30
Element Collapse Rating:
150 psid (10 bar) for standard elements
Flow Direction:
Outside In
Element Nominal Dimensions:
2.18" (55 mm) O.D. x 8.15" (206 mm) long
Element
Filtration Ratio Per ISO 4572/NFPA T3.10.8.8
Using automated particle counter (APC) calibrated per ISO 4402
Filtration Ratio wrt ISO 16889
Using APC calibrated per ISO 11171
ß
x
≥ 75 ß
x
≥ 100 ß
x
≥ 200 ß
x
(c)
≥ 200 ß
x
(c)
≥ 1000
8R3
6.8 7.5 10.0 N/A N/A
8R10
15.5 16.2 18.0 N/A N/A
8RZ1
<1.0 <1.0 <1.0 <4.0 4.2
8RZ3
<1.0 <1.0 <2.0 <4.0 4.8
8RZ5
2.5 3.0 4.0 4.8 6.3
8RZ10
7.4 8.2 10.0 8.0 10.0
8RZ25
18.0 20.0 22.5 19.0 24.0
Element
Performance
Information
Dirt Holding
Capacity
SCHROEDER INDUSTRIES 75
NF30
NFS30
YF30
CFX30
PLD
DF40
CF40
PF40
RFS50
RF60
CF60
CTF60
VF60
LW60
KF30
TF50
KF50
KC50
MKF50
KC65
NOF30-05
NOF50-760
FOF60-03
NMF30
RMF60
Cartridge
Elements
HS60
MHS60
KFH50
∆P
filter
= ∆P
housing
+ ∆P
element
Exercise:
Determine ∆P at 15 gpm (57 L/min) for
RFS508R10OD5 using 200 SUS (44 cSt) fluid.
Solution:
∆P
housing
= 5.0 psi [.38 bar]
∆P
element
= 15 x .30 x (200÷150) = 6.0 psi
or
= [57 x (.30÷54.9) x (44÷32) = .41 bar]
∆P
total
= 5.0 + 6.0 = 11.0 psi
or
= [.38 + .41 = .79 bar]
Type Fluid Appropriate Schroeder Media
Petroleum Based Fluids
All E media (cellulose) and Z-Media
®
(synthetic)
High Water Content
All Z-Media
®
(synthetic)
Invert Emulsions
10 and 25 µ Z-Media
®
(synthetic)
Water Glycols
3, 5, 10 and 25 µ Z-Media
®
(synthetic)
Phosphate Esters
All Z-Media
®
(synthetic) with H (EPR) seal designation
Skydrol
®
3, 5, 10 and 25 µ Z-Media
®
(synthetic) with H.5 seal designation (EPR seals and
stainless steel wire mesh in element, and light oil coating on housing exterior)
Sizing of elements should be based on element flow information provided in the Element Selection chart above.
sp gr = specific gravity
Pressure
Element
Element selections are predicated on the use of 150 SUS (32 cSt)
petroleum based fluid and a 40 psi (2.8 bar) bypass valve.Series Part No.
To
5000 psi
(345 bar)
E
Media
8R3 8R3
8R10 8R10
Z-
Media
®
8RZ1 8RZ1
8RZ3 8RZ3
8RZ5 8RZ5
8RZ10 8RZ10
8RZ25 8RZ25
Flow
gpm 10 15 20 25 30
(L/min) 50 75 100 115
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.
0
0
∆P
element
∆P
element
=
flow x element ∆P factor x viscosity factor
El. ∆P factors @ 150 SUS (32 cSt):
8R3
.35
8R10
.30
8RZ1
.87
8RZ3
.43
8RZ5
.39
8RZ10
.36
8RZ25
.11
If working in units of bars & L/min, divide above
factor by 54.9.
Viscosity factor: Divide viscosity by 150 SUS (32 cSt).
∆P
housing
RFS50 ∆P
housing
for fluids with sp gr = 0.86:
Manifold Mounted Pres sure Filter
RFS50
Fluid
Compatibility
Element
Selection
Based on
Flow Rate
Pressure
Drop
Information
Based on
Flow Rate
and Viscosity
Skydrol
®
is a registered
trademark of Solutia Inc.
Notes
76 SCHROEDER INDUSTRIES
Manifold Mounted Pres sure Filter
RFS50
Filter
Model
Number
Selection
NOTES:
Box 2. Replacement element
part numbers are a
combination of Boxes
2, 3, and 4.
Example: 8RZ1V
E media (cellulose)
elements are only
available with Buna N
seals.
Box 4. Viton
®
is a registered
trademark of DuPont
Dow Elastomers.
Box 5. For option O, O-rings
included, fastening
hardware not included.
BOX 1 BOX 2 BOX 3
Filter
Series
Element
Length
(in)
Element Size and Media
RFS50
8
R3 = R size 3 µ E media (cellulose)
R10 = R size 10 µ E media (cellulose)
RZ1 = R size 1 µ Excellement
®
Z-Media
®
(synthetic)
RZ3 = R size 3 µ Excellement
®
Z-Media
®
(synthetic)
RZ5 = R size 5 µ Excellement
®
Z-Media
®
(synthetic)
RZ10 = R size 10 µ Excellement
®
Z-Media
®
(synthetic)
RZ25 = R size 25 µ Excellement
®
Z-Media
®
(synthetic)
BOX 4
Seal Material
Omit = Buna N
H = EPR
V = Viton
®
BOX 5
Inlet Port
O = Manifold
mounting
BOX 6
Options
Omit = None
X = Blocked bypass
50 = 50 psi bypass setting
L = Two
1
⁄
4
" NPTF inlet and outlet
female test ports
U = Schroeder Check
7
⁄
16
"-20 UNF
Test Point installation in head
(upstream)
BOX 7
Dirt Alarm
®
Options
Omit = None
Visual D5 = Visual pop-up
Visual with
Thermal
Lockout
D8 = Visual w/ thermal lockout
Electrical
MS5 = Electrical w/ 12 in. 18 gauge 4-conductor cable
MS5LC = Low current MS5
MS10 = Electrical w/ DIN connector (male end only)
MS10LC = Low current MS10
MS11 = Electrical w/ 12 ft. 4-conductor wire
MS12 =
Electrical w/ 5 pin Brad Harrison connector (male end only)
MS12LC = Low current MS12
MS16 = Electrical w/ weather-packed sealed connector
MS16LC = Low current MS16
MS17LC = Electrical w/ 4 pin Brad Harrison male connector
Electrical
with
Thermal
Lockout
MS5T = MS5 (see above) w/ thermal lockout
MS5LCT = Low current MS5T
MS10T = MS10 (see above) w/ thermal lockout
MS10LCT = Low current MS10T
MS12T = MS12 (see above) w/ thermal lockout
MS12LCT = Low current MS12T
MS16T = MS16 (see above) w/ thermal lockout
MS16LCT = Low current MS16T
MS17LCT = Low current MS17T
Electrical
Visual
MS13 = Supplied w/ threaded connector & light
MS14 = Supplied w/ 5 pin Brad Harrison connector & light
(male end)
Electrical
Visual
with
Thermal
Lockout
MS13DCT = MS13 (see above), direct current, w/ thermal lockout
MS13DCLCT = Low current MS13DCT
MS14DCT = MS14 (see above), direct current, w/ thermal lockout
MS14DCLCT = Low current MS14DCT
How to Build a Valid Model Number for a Schroeder RFS50:
BOX 1 BOX 2 BOX 3 BOX 4 BOX 5 BOX 6 BOX 7
RFS50 – – – – – –
Example:
NOTE: Only box 6 may contain more than one option
BOX 1 BOX 2 BOX 3 BOX 4 BOX 5 BOX 6 BOX 7
RFS50 – 8 – RZ10 – V – O – – D5 = RFS508RZ10VOD5
