SCHROEDER INDUSTRIES 105

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 100 gpm (380 L/min) for 150 SUS (32 cSt) ﬂuids

With 2" porting only, up to 150 gpm (570 L/min) for 150 SUS (32 cSt) ﬂuids

Max. Operating Pressure:

5000 psi (345 bar)

Min. Yield Pressure:

15,000 psi (1035 bar), per NFPA T2.6.1

Rated Fatigue Pressure:

3500 psi (240 bar), per NFPA T2.6.1-2005

Temp. Range:

-20°F to 225°F (-29°C to 107°C)

Bypass Setting:

Cracking: 40 psi (2.8 bar) Optional Cracking: 50 psi (3.5 bar)

Full Flow: 61 psi (4.2 bar)

Non-bypassing model has a blocked bypass.

Porting Base & Cap:

Element Case:

Ductile Iron

Steel

Weight of KF50-1K:

Weight of KF50-2K:

Weight of KF50-3K:

59.7 lbs. (27.1 kg)

80.7 lbs. (36.6 kg)

102.0 lbs. (46.3 kg)

Element Change Clearance:

8.50" (215 mm) for 1K; 17.50" (445 mm) for KK; 26.5" (673 mm) for 27K

Base-Ported Pres sure Filter

KF50

100/150 gpm

380/570 L/min

5000 psi

345 bar

Filter

Housing

Speciﬁcations

Applications

Features and Beneﬁts

■

Base-ported high pressure ﬁlter

■

Can be installed in vertical or horizontal

position

■

Meets HF4 automotive standard

■

Element changeout from top minimizes

oil spillage

■

Offered in pipe, SAE straight thread,

ﬂanged and ISO 228 porting

■

No-Element indicator option available

■

Available with non-bypass option

with high collapse element

■

Integral inlet and outlet female test

points option available

■

Offered in conventional subplate

porting

■

Double and triple stacking of K-size

elements can be replaced by single

KK or 27K-size elements

Model No. of ﬁlter in photograph is KF501K10SD.

106 SCHROEDER INDUSTRIES

Base-Ported Pressure Fil ter

KF50

Element

Performance

Information

Element

DHC

(gm) Element

DHC

(gm) Element

DHC

(gm) Element

DHC

(gm) Element

DHC

(gm)

KK3 108 27K3 162

K10

KK10 88 27K10 132

KZ1

112

KKZ1 224 27KZ1 336 KZW1 61

KZ3/KAS3

115

KKZ3/KKAS3 230 27KZ3/27KAS3 345 KZW3 64 KKZW3

128

KZ5/KAS5

119

KKZ5/KKAS5 238 27KZ5/27KAS5 357 KZW5 63 KKZW5

126

KZ10/KAS10

108

KKZ10 216 27KZ10/27KAS10 324 KZW10 57 KKZW10

114

KZ25

KKZ25 186 27KZ25 279 KZW25 79 KKZW25

158

KZX3

40*

KKZX3 80 27KZX3 120

KZX10

49*

KKZX10 98 27KZX10 147

Element Collapse Rating: 150 psid (10 bar) for standard elements

3000 psid (210 bar) for high collapse (ZX) versions

Flow Direction:

Outside In

Element Nominal Dimensions:

K: 3.9" (99 mm) O.D. x 9.0" (230 mm) long

KK: 3.9" (99 mm) O.D. x 18.0" (460 mm) long

27K: 3.9" (99 mm) O.D. x 27.0" (690 mm) long

* Based on 100 psi

terminal pressure

Dirt Holding

Capacity

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

Element ß

≥ 75 ß

≥ 100 ß

≥ 200 ß

(c)

≥ 200 ß

(c)

≥ 1000

K3/KK3/27K

6.8 7.5 10.0 N/A N/A

K10/KK10/27K10

15.5 16.2 18.0 N/A N/A

KZ1/KKZ1/27KZ1

<1.0 <1.0 <1.0 <4.0 4.2

KZ3/KKZ3/27KZ3/KAS3/KKAS3/27KAS3

<1.0 <1.0 <2.0 <4.0 4.8

KZ5/KKZ5/27KZ5/KAS5/KKAS5/27KAS5

2.5 3.0 4.0 4.8 6.3

KZ10/KKZ10/27KZ10/KAS10/KKAS10/27KAS10

7.4 8.2 10.0 8.0 10.0

KZ25/KKZ25/27KZ25

18.0 20.0 22.5 19.0 24.0

KZW1

N/A N/A N/A <4.0 <4.0

KZW3/KKZW3

N/A N/A N/A 4.0 4.8

KZW5/KKZW5

N/A N/A N/A 5.1 6.4

KZW10/KKZW10

N/A N/A N/A 6.9 8.6

KZW25/KKZW25

N/A N/A N/A 15.4 18.5

KZX3/KKZX3/27KZX3

<1.0

<1.0 <2.0 4.7 5.8

KZX10/KKZX10/27KZX10

7.4

8.2 10.0 8.0 9.8

Metric di men sions in ( ).

SCHROEDER INDUSTRIES 107

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

Type Fluid Appropriate Schroeder Media

Petroleum Based Fluids

All E media (cellulose), Z-Media

and ASP Media (synthetic)

High Water Content

All Z-Media

and ASP Media (synthetic)

Invert Emulsions

10 and 25 µ Z-Media

(synthetic), 10 µ ASP Media

Water Glycols

3, 5, 10 and 25 µ Z-Media

(synthetic) and all ASP Media (synthetic)

Phosphate Esters

All Z-Media

and ASP Media (synthetic) with H (EPR) seal designation and 3

and 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

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)

sp gr = speciﬁc gravity

Sizing of elements should be based on element ﬂow

information provided in the Element Selection chart above.

∆P

element

∆P

element

= ﬂow x element ∆P factor x viscosity factor

El. ∆P factors @ 150 SUS (32 cSt):

1K 2K/KK 3K/27K

K3 .25 .12 .08

K10 .09 .05 .03

K25 .02 .01 .01

KZ1 .20 .10 .05

KZ3/KAS3/KKAS3/27KAS3 .10 .05 .03

KZ5/KAS5/KKAS5/27KAS5 .08 .04 .02

KZ10/KAS10/

KKAS10/27KAS10

.05 .03 .02

KZ25 .04 .02 .01

KZX10 .08 .04 .03

1K 2K

KZW1 .43

KZW3 .32 .16

KZW5 .28 .14

KZW10 .23 .12

KZW25 .14 .07

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

KF50 ∆P

housing

for ﬂuids with sp gr = 0.86:

Pressure

Element

Flow capacity 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.

5000 psi

(345 bar)

Media

K3 1K3 2K3† 3K3 See MKF50

K10 1K10 2K10† 3K10† 3K10† See MKF50

K25 1K25 2K25†

Z-

Media

KZ1 1KZ1 2KZ1† 3KZ1†

KZ3 1KZ3/KAS3/KKAS3/27KAS3 2KZ3† 3KZ3†

KZ5 1KZ5/KAS5/KKAS5/27KAS5 2KZ5† 3KZ5†

KZ10 1KZ10/KAS10/KKAS10/27KAS10 2KZ10†

3KZ10†

KZ25 1KZ25 2KZ25†

Flow

gpm 25 50 75 100 125 150

(L/min) 100 200 300 400 500 570

† Double and triple stacking of K-size elements can

be replaced by single KK & 27K elements, respectively.

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.

requires 2" porting (P32)

∆P

ﬁlter

= ∆P

housing

+ ∆P

element

Exercise:

Determine ∆P at 50 gpm (190 L/min) for

KF501KZ3PD5 using 200 SUS (44 cSt) ﬂuid.

Solution:

∆P

housing

= 3.0 psi [.20 bar]

∆P

element

= 50 x .10 x (200÷150) = 6.7 psi

= [190 x (.10÷54.9) x (44÷32) = .48 bar]

∆P

total

= 3.0 + 6.7 = 9.7 psi

= [.20 + .48 = .68 bar]

Base-Ported Pres sure Filter

KF50

Flow Capacity

Selection

Based on

Pressure Drops

Fluid

Compatibility

Pressure

Drop

Information

Based on

Flow Rate

and Viscosity

Skydrol

is a registered

trademark of Solutia Inc.

108 SCHROEDER INDUSTRIES

Base-Ported Pressure Fil ter

KF50

Filter

Model

Number

Selection

NOTES:

Box 2. Number of elements

must equal 1

when using KK

or 27K elements.

Replacement element

part numbers are

identical to contents

of Boxes 2, 3, 4 and 5.

Double and triple

stacking of K-size

elements can be

replaced by single

KK and 27K elements,

respectively. ZW media

not available in 27K

length.

Box 5. H.5 seal designation

includes the

following: EPR seals,

stainless steel wire mesh

on elements, and light

oil coating on housing

exterior. Viton

is a

registered trademark of

DuPont Dow Elastomers.

Skydrol

is a registered

trade mark of Solutia Inc.

Box 7. For option F, bolt depth

.75" (19 mm). For option

O, O-rings included;

hardware not included.

Box 9. Standard indicator

setting for non-

bypassing model is

50 psi unless otherwise

speciﬁed.

Box 10. Options N, G509 and

G588 are not available

with KFN50. N option

should be used in

conjunction with

dirt alarm.

How to Build a Valid Model Number for a Schroeder KF50:

BOX 1 BOX 2 BOX 3 BOX 4 BOX 5 BOX 6 BOX 7 BOX 8 BOX 9 BOX 10

KF50 – – – – – – – – –

Example:

NOTE: Only boxes 8 and 10 may contain more than one option

BOX 1 BOX 2 BOX 3 BOX 4 BOX 5 BOX 6 BOX 7 BOX 8 BOX 9 BOX 10

KF50 – 1K – Z – 10 – – – S – – D5 – = KF501KZ10SD5

BOX 1 BOX 2 BOX 3

Filter

Series

Number & Size of

Elements

Media Type

KF50

K, KK, 27K

Omit E Media (Cellulose)

Z Excellement

Z-Media

(synthetic)

KFN50

(Non-

bypassing:

requires ZX

high collapse

elements)

AS Anti-Stat Media (synthetic)

ZW Aqua-Excellement

™

ZW Media

Excellement

Z-Media

(High Collapse centertube)

W W Media (water removal)

M Media (reusable metal mesh)

BOX 7

Porting

P = 1

⁄2" NPTF

P32 = 2" NPTF

S = SAE-24

F = 1

⁄2" SAE

4-bolt

ﬂange

Code 62

O = Subplate

B24 =

SO 228

G-1

⁄2"

BOX 8

Options

Omit = None

X = Blocked bypass

50 = 50 psi bypass setting

L = Two

⁄4" NPTF inlet and outlet female test ports

U = Series 1215

⁄16 UNF Schroeder Check Test Point

installed in cap (upstream)

UU = Series 1215

⁄16 UNF Schroeder Check Test Point

installed in block (upstream and downstream)

BOX 10

Additional Options

Omit = None

N = No-Element Indicator

(not available w/

KFN50 or housings

w/ indicator in cap

G509 = Dirt alarm and drain

opposite standard

G588 = Electrical switch

and drain opposite

standard

BOX 4

MIcron Rating

1 = 1 Micron (Z, ZW, ZX media)

3 = 3 Micron

(AS,E, Z, ZW, ZX media)

5 = 5 Micron

(AS, Z, ZW, ZX media)

10 = 10 Micron

(AS,E,M, Z, ZW, ZX media)

25 = 25 Micron

(E,M, Z, ZW, ZX media)

60 = 60 Micron

(M media)

150 = 150 Micron

(M media)

260

= 260 Micron

(M media)

BOX 5

Seal Material

Omit = Buna N

V = Viton

H = EPR

H.5

= Skydrol

compatibility

BOX 6

Magnet Options

Omit = None

= Magnet

inserts (not

available w/

indicator in

cap)

BOX 9

Dirt Alarm

Options

Omit = None

Visual

D = Pointer

D5 = Visual pop-up

D5C = D5 in cap

D9 = All stainless D5

Visual with

Thermal

Lockout

D8 = Visual w/ thermal lockout

D8C = D8 in cap

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

MS = Cam operated switch w/ ½" conduit female connection

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