COMPATIBILITY (ISO 2943:1999)

Full with fl uids: HH-HL-HM-HV-HTG(according to ISO 6743/4)For fl uids different than the above mentio-ned, please contact our Sales Department.

WORKING TEMPERATURE

From -25° to + 110° C

MATERIALS

Cover & housing:Anodized aluminium alloy

For 61&62 only:Cover: anodized aluminium alloyHousing: steel

Bypass valve:Polyammide

Seals:NBR Nitrile (FKM - on request fl uoroelastomer)

Indicator housing:Brass

PRESSURE (ISO 10771-1:2002)

Max working:2 MPa (20 bar)

Test:3 MPa (30 bar)

Bursting:6 MPa (60 bar)

Collapse, differential for the fi lter element (ISO 2941): 1 MPa (10 bar)

BYPASS VALVE

Setting: 300 kPa (3 bar) ±10%

RD

APPLICATION EXAMPLE

COMPONENTS

R E T U R N F I L T E R S

FILTER HOUSING

kg

FRD11

FRD21

FRD31

FRD41

FRD51

FRD61

FRD62

D1 D3 D4 D5 E1 H1 H2 H3 H4 H6 H7 RD2 H5

1/2”

3/4”

1”

1” 1/2

2” 1/2

3” 1/2

4”

95

138

154

180

275

275

275

90

128

147

174

254

300

300

43

57

67

82

117,5

178

178

160

191

250

343

420

673

1.108

62,5

105

140

177

218

-

-

96

100

117

155

192

248

423

31,5

52

63

82

91

130

255

3

3

4

4

8

5

5

96

145

197

269

320

-

950

105

110

155

240

275

525

1.020

1,3

2,6

3,7

6,5

14,2

49,0

70,0

4

6

8

8

10

10

10

INSTALLATION DRAWINGR E T U R N F I LT E R SRD

FRD 61- 62 FRD 11-21-31-41-51

Ø D3 Ø D3

Tank mounting pattern Tank mounting pattern

(*) Adjustable for RD62 only - loose flange (to be welded)

Ø D

2

Ø D

2

D5 D5

45° 45°

45° 45°

85

123

137

164

239

239

239

M5

M6

M6

M8

M10

M12

M12

E1

D4

D4

H7

H7

H4

H2

H4

H3

30

H5

H6

D1

D1

H5

H6

H3

E1

6 R

R

H1

H1

(*)

FILTER ELEMENTArea (cm2)

Media F+ Media C+ Media M+A B C

C

B

A

ERD11

ERD21

ERD31

ERD41

ERD51

ERD61

ERD62

52

70

70

99

130

130

143

28/24

34

34

51

74

74/85

96,3

70

85

130

211

251

500

896

310

620

1.000

3.800

7.930

16.720

40.000

380

990

1.600

4.280

8.350

17.600

40.000

245

460

740

2.330

3.340

9.860

22.000

0,10

0,20

0,25

0,70

1,50

2,00

3,80

kg

ORDERING AND OPTION CHARTR E T U R N F I LT E R S RD

DR11 624131

N

6121

BNS

04 = 1/2"06 = 3/4"08 = 1"12 = 1" 1/220 = 2" 1/228 = 3" 1/32 = 4"

2

WW

FC FCFD FDCC CCCD CD

NF

FCFDCCCD

NF

FCFDCCCD

FA FAFB FB

FAFB

FAFB

7C = indicator 6C with LED

5C = visual differential 200 kPa (2 bar)03 = port, plugged 03

5C6C

XX XXXX XXXXXX XX

DD

6C = electrical differential 200 kPa (2 bar)

T1 = elect. diff. 200 kPa (2 bar) with thermostat 30°C

F- F

BNS

F F

BNS

WD

WD

NF

NF

FCFDCCCD

FAFB

FCFDCCCD

FAFB

7CT1

035C6C7CT1

035C6C7CT1

035C6C7CT1

035C6C7CT1

035C6C7CT1

035C6C7CT1

FAMILYSIZE & LENGTH

ELEMENT ER D

FILTER MEDIA

CC = cellulose 10CD = cellulose 25

SEALS

F = FKMN = NBR

PORT TYPE

FAMILYNOMINAL SIZE & LENGTH

B = BSP threadN = NPT threadS = SAE threadF = SAE flange 3000 psi, metric screwsPORT SIZE

BYPASS VALVEW = without

FILTER MEDIA

CC = cellulose 10CD = cellulose 25

SEALS

CLOGGING INDICATOR

D = 300 kPa (3 bar)

ACCESSORIESXX = no accessory available

XX

-

04

-

---

- 06-

---- 08

-

---

--

12

-

--

- -

-

28

-

--

---

---

F

--

--

--

F = FKM FluoroelastomerN = NBR Nitrile

WR = water removal (*) -- WR WRWR WR WR = water removalME = wire mesh 60 ME ME MEME ME ME ME = wire mesh 60MD = wire mesh 25 MD MD MDMD MD MD

FCFDCCCD

FAFB

WRMEMD MD = wire mesh 25

(*) water removal media - see "hydro dry" brochure

B = FILTER HOUSINGF = FILTER COMPLETETYPE

FB

FB

FB

FB

FB

51

BBNSS

WD

NF

WD

NF

WD

NF

20

-

-- - - - - 32-

-

--

FB

FB

m>2>2

m

>1.000FA = fiber 5 m(c)

>1.000FB = fiber 7 m(c)

>1.000FC = fiber 12 m(c)

>1.000FD = fiber 21 m(c)

mm

mm

FA = fiber 5 m(c)

FB = fiber 7 m(c)

FC = fiber 12 m(c)

FD = fiber 21 m(c)

mm

When the filter is ordered with FKM seals, the first digit of the indicator code is a letter (please see page 184 - 185).

N.B. Indicator series 71 only on request

10

ERD 11

0 20 30 40 50 60

25

50

75

100

l/min

Δp (kPa)

FCFD

CC

CD

FA FB

MD ME

Δp (bar)

0,25

0,5

0,75

1

R E T U R N F I LT E R S

CLEAN FILTER ELEMENT PRESSURE DROPWITH F+ AND C+ MEDIA

(depending both on the internal diameter of the element and on the fi lter media)

FILTER HOUSING PRESSURE DROP(mainly depending on the port size)

The “Assembly Pressure Drop (∆p)” is obtained by adding the pressure drop values of the Filter Housing and of the Clean Filter Element corresponding to the considered Flow Rate and it must be lower than 50 kPa (0,5 bar).

PRESSURE DROP CURVES (∆p)

FLUID SPEEDwhen selecting the fi lter size, we suggest to consider also the max recommended fl uid speed (in return lines normally 1,5 < v < 4 m/s)

2000

1900

1800

1700

1600

1500

1400

1300

1200

1100

1000

900

800

700

600

500

400

300

200

100

03” 1/23/4” 1” 2” 4”1” 1/2 2” 1/21/2”

FLO

W R

ATE

[l/

min

]

PORT SIZE

Recommended range

1,5

< v

< 4

m/s

0

10

20

30

40

100 200 300 400 500 600 700 800 1000 1100 1200

FRDΔp (kPa)

3/4"1/2"

1"

l/min

Δp (bar)

0,1

0,2

0,3

0,4

1300900 1500 17001400 1600 1800

4"

1” 1/2 2” 1/2

3” 1/2

RD

15

FRD 11

0 30 45 60 75 90

100

200

300

400Δp (kPa)

l/min

Δp (bar)

1

2

3

4

25

FRD 21-31

0 50 75 100 125 150

100

200

300

400Δp (kPa)

l/min

Δp (bar)

1

2

3

4

50

FRD 41

0 100 150 200 250 300

100

200

300

400Δp (kPa)

l/min

Δp (bar)

1

2

3

4

2000 400 600 800 1000 1200

100

200

300

400Δp (kPa)

l/min

Δp (bar)

1

2

3

4

10

ERD 21

0 20 30 40 50 60

25

50

75

100

l/min

Δp (kPa)

FCFA FB

FD

CCCD MD ME

Δp (bar)

0,25

0,5

0,75

1

25

ERD 31

0 50 75 100 125 150

25

50

75

100

l/min

Δp (kPa)

FC

CD

FA FB

FDCC

MD ME

Δp (bar)

0,25

0,5

0,75

1

BYPASS VALVE PRESSURE DROPWhen selecting the filter size, these curves must be taken into account if it is foreseen that any flow peak is to be absorbed by the bypass valve,

it also must be of proper configuration to avoid pressure peaks. The valve pressure drop is directly proportional to fluid specific gravity.

R E T U R N F I LT E R S

N.B. All the curves have been obtained with mineral oil having a kinematic viscosity 30 cSt and specific gravity 0,9 kg/dm3; for fluids with different features, please consider the factors described in the first part of this catalogue. All the curves are obtained from test done at the UFI HYDRAULIC DIVISION Laboratory, according to the specification ISO 3968:2005. In case of discrepancy, please check the contamination level, viscosity and features of the fluid in use.

50

ERD 41

0 100 150 200 250 300

25

50

75

100Δp (kPa)

FC

CD

FA FB

CC

FD

l/min

MD ME

Δp (bar)

0,25

0,5

0,75

1

600100

ERD 51

0 200 300 400 500

25

50

75

100Δp (kPa)

FC

CD

FA FB

CC

FD

l/min

MD ME

Δp (bar)

0,25

0,5

0,75

1

200

ERD 61

0 400 600 800 1000 1200

25

50

75

100Δp (kPa)

CD

FA FBFC

FDCC

l/min

MD ME

Δp (bar)

0,25

0,5

0,75

1

600

FRD 51-61-62

0 1200

25

50

75

100Δp (kPa)

FB FCFD

l/min

Δp (bar)

0,25

0,5

0,75

1ERD 62

ME1500 1800300 600 090

FA

CDCC

MD

RD

DE RDRB X X

For further technical informations and other options see page 185.

Tech

nica

l dat

a su

bjec

t to

varia

tions

with

out p

rior n

otic

e. R

D -

EN

- 06

/201

1

R E T U R N F I LT E R S

FRD11

FRD21

FRD31

FRD41

FRD51

FRD61

FRD62

521.0045.2

521.0046.2

521.0047.2

521.0031.2

521.0048.2

521.0049.2

521.0049.2

521.0050.2

521.0051.2

521.0052.2

521.0019.2

521.0053.2

521.0054.2

521.0094.2

NBR FKMSPARE SEAL KIT

SERIES 6C - 7C

SERIES T1

SERIES 5C

CLOGGING INDICATOR

SPARE PARTS ELEMENTS (For filling up see table “Ordering and option chart”)

FILTER ELEMENT CLOGGING INDICATORFILTER HOUSING

STRONG CONSTRUCTIONThe strong filter housing makes the FRD filters particularly suitable for applications where each compo-nent must provide the highest reliability.

CLOGGING INDICATORA visual or electrical indicator is available as an option and allows monitoring of the element condi-tion. The port for the indicator is a standard feature.

FLEXIBILITY OF ASSEMBLINGA second inlet port, supplied plugged, permits you to easily solve special installation needs.

NO LEAKSThe end caps with captive O-ring ensure a perfect sealing between filter element and housing.

RD

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