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Change-Over
Pressure Filter DFDK
up to 2500 l/min, up to 315 bar
1. TECHNICAL
SPECIFICATIONS
1.1 FILTER HOUSING
Construction
The lter housings are designed
in accordance with international
regulations. They consist of a lter
head with screw-in lter bowls.
Standard equipment:
ball change-over valve
two-piece lter bowl for DFDK 990,
1320 (as an option for DFDK 660)
connection for a clogging indicator
drain screw with pressure relief
pressure equalization line
(for size DFDK 330 and above)
1.2 FILTER ELEMENTS
HYDAC lter elements are validated
and their quality is constantly
monitored according to the following
standards:
ISO 2941, ISO 2942, ISO 2943,
ISO 3724, ISO 3968, ISO 11170
ISO 16889
Contamination retention capacities
in g
Betamicron
®
(BN4HC)
DFDK Elements
per side
3 µm 5 µm 10 µm 20 µm
30 1x0030 D 4.6 5.1 5.4 5.6
60 1x0060 D 6.5 7.3 7.8 8.0
110 1x0110 D 13.8 15.5 16.4 16.9
140 1x0140 D 18.1 20.3 21.5 22.2
160 1x0160 D 19.8 22.2 23.5 24.3
240 1x0240 D 32.3 36.3 38.4 39.6
280 1x0280 D 70.6 79.3 83.9 86.6
330 1x0330 D 47.2 53.1 56.1 57.9
500 1x0500 D 76.9 86.5 91.5 94.4
660 1x0660 D 102.2 114.9 121.5 125.4
990 1x0990 D 154.5 173.7 183.7 189.5
1320 1x1320 D 209.9 236.0 249.6 257.5
1320.3.X 1x1320 D 209.9 236.0 249.6 257.5
2640.3.X 2x1320 D 419.8 472.0 499.2 515.0
3960.3.X 3x1320 D 629.7 708.0 748.8 772.5
Betamicron
®
(BH4HC)
DFDK Elements
per side
3 µm 5 µm 10 µm 20 µm
30 1x0030 D 3.0 2.9 3.2 3.7
60 1x0060 D 4.6 4.5 5.0 5.7
110 1x0110 D 10.1 9.9 10.9 12.4
140 1x0140 D 13.3 13.0 14.3 16.3
160 1x0160 D 12.9 12.6 13.9 15.9
240 1x0240 D 21.6 21.1 23.2 26.5
280 1x0280 D 48.1 47.1 51.8 59.1
330 1x0330 D 34.6 33.9 37.2 42.5
500 1x0500 D 57.5 56.3 61.8 70.5
660 1x0660 D 76.8 75.2 82.6 94.3
990 1x0990 D 111.8 109.4 120.2 137.2
1320 1x1320 D 153.8 150.7 165.5 188.8
1320.3.X 1x1320 D 153.8 150.7 165.5 188.8
2640.3.X 2x1320 D 307.6 301.4 331.0 377.6
3960.3.X 3x1320 D 461.4 452.1 496.5 566.4
Filter elements are available with the
following pressure stability values:
Betamicron
®
(BN4HC): 20 bar
Betamicron
®
(BH4HC): 210 bar
Wire mesh (W/HC,W): 20 bar
Stainless steel bre (V): 210 bar
1.4 SEALS
NBR (= Perbunan)
1.5 INSTALLATION
As inline lter
1.6 SPECIAL MODELS AND
ACCESSORIES
Pressure equalization line
DFDK 160 - 280
1.7 SPARE PARTS
See Original Spare Parts List
1.8 CERTIFICATES AND APPROVALS
On request
1.9 COMPATIBILITY WITH
HYDRAULIC FLUIDS ISO 2943
Hydraulic oils H to HLPD DIN 51524
Lubrication oils DIN 51517, API,
ACEA, DIN 51515, ISO 6743
Compressor oils DIN 51506
Biodegradable operating uids VDMA
24568 HETG, HEES, HEPG
Fire-resistant uids HFA, HFB, HFC
and HFD
Operating uids with high water
content (>50% water content) and
CLP-oil on request
1.10 IMPORTANT INFORMATION
Filter housings must be earthed.
When using electrical clogging
indicators, the electrical power supply
to the system must be switched off
before removing the clogging indicator
connector.
1.3 FILTER SPECIFICATIONS
Nominal pressure 160 bar (DFDK with type code 3.X)
315 bar (DFDK with type code 1.X
and 2.X)
Fatigue strength At nominal pressure 10
6
cycles
from 0 to nominal pressure
Temperature range -10 °C to +100 °C
(-30 °C to -10 °C: p
max
= 157.5 bar)
Material of lter head EN-GJS-400-15
Material of lter bowl Steel
Type of clogging indicator VD (differential pressure measurement
up to 420 bar operating pressure)
Pressure setting of the clogging indicator 8 bar (others on request)
Symbol for hydraulic systems
DFDK
30
DFDK
110
DFDK
140
DFDK
160
DFDK
240
DFDK
280
DFDK
330
DFDK
500
DFDK
660 1.x
DFDK
660 2.x
DFDK
990 2.x
DFDK
1320 2.x
DFDK
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DFDK
1320 3.x
DFDK
3960 3.x
DFDK
2640 3.x
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DFDK BN/HC 160 Q A F 10 D 1 . X /-L24
Filter type
DFDK
Filter material of element
BN/HC Betamicron
®
(BN4HC) V Stainless steel bre
BH/HC Betamicron
®
(BH4HC) W/HC, W Wire mesh
Size of lter or element
DFDK: 30, 60, 110, 140, 160, 240, 280, 330, 500, 660, 990, 1320, 2640, 3960
Operating pressure
Q = 315 bar
K = 160 bar (only for DFDK 1320, 2640, 3960...3.x)
Type of change-over
A Ball
Type and size of connection
Type Connection
type
Filter size
30 60 110 140 160 240 280 330 500 660 990 1320 1320/2640/3960...3.x
B G ½
C G ¾
F G1 ½
L SAE DN 50*
M SAE DN 65
*DIN ISO 228 (6000 PSI)
Filtration rating in µm
BN/HC, BH/HC, V: 3, 5, 10, 20
W/HC, W: 25, 50, 100, 200
Type of clogging indicator
Y plastic blanking plug in indicator port
A steel blanking plug in indicator port
B visual
for other clogging indicators,
C electrical
see brochure no. 7.050../..
D visual and electrical
Type code
1 model with one-piece lter bowls
2 model with two-piece lter bowls (only for DFDK 660 to 1320)
3 top-removable model (only DFDK 1320 to 3960)
Modication number
X the latest version is always supplied
Supplementary details
B. light with appropriate voltage (24, 48, 110, 220 Volt) only for clogging
LED 2 light-emitting diodes up to 24 Volt indicators type "D"
V FPM seals
W suitable for HFA and HFC emulsions
2.3 REPLACEMENT CLOGGING INDICATOR VD 8 D . X /-L24
Type
VD Differential pressure indicator up to 420 bar operating pressure
Pressure setting
8 standard 8 bar, others on request
Type of clogging indicator
D (see Point 2.1)
Modication number
X the latest version is always supplied
Supplementary details
L..., LED, V, W (for descriptions, see Point 2.1)
0160 D 010 BN4HC /-V
Size
0030, 0060, 0110, 0140, 0160, 0240, 0280, 0330, 0500, 0660, 0990, 1320
Type
D
Filtration rating in µm
BN4HC, BH4HC, V: 003, 005, 010, 020
W/HC, W: 025, 050, 100, 200
Filter material
BN4HC, BH4HC, V, W/HC, W
Supplementary details
V, W (for descriptions, see Point 2.1)
2.2 REPLACEMENT ELEMENT
2. MODEL CODE (also order example)
2.1 COMPLETE FILTER
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3. FILTER CALCULATION /
SIZING
The total pressure drop of a lter at a
certain ow rate Q is the sum of the
housing ∆p and the element ∆p and is
calculated as follows:
∆p
total
=∆p
housing
+∆p
element
∆p
housing
= (see Point 3.1)
∆p
element
= Q •
SK*
•
viscosity
1000 30
(*see point 3.2)
For ease of calculation, our Filter
Sizing Program is available on request
free of charge.
NEW: Sizing online at www.hydac.com
3.1 ∆p-Q HOUSING CURVES BASED
ON ISO 3968
The housing curves apply to mineral oil
with a density of 0.86 kg/dm³ and
a kinematic viscosity of 30 mm²/s.
In this case, the differential pressure
changes proportionally to the density.
DFDK 30 ... 1.x DFDK 1320 ... 3.x
∆p [bar]
∆p [bar]
Q [l/min] Q [l/min]
DFDK 60, 110, 140 ... 1.x DFDK 2640 ... 3.x
∆p [bar]
∆p [bar]
Q [l/min] Q [l/min]
DFDK 160, 240, 280 ... 1.x DFDK 3960 ... 3.x
∆p [bar]
∆p [bar]
Q [l/min] Q [l/min]
DFDK 330, 500, 660 ... 1.x
DFDK 660, 990, 1320 ... 2.x
∆p [bar]
Q [l/min]
0
0.5
1
1.5
2
0 200 400 6 00 800 100 0
0
0.5
1
1.5
2
0 200 400 600 800 1000 1200
0
0.5
1
1.5
2
2.5
0 100 200 300 400 500 600 700 800
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3.2 GRADIENT COEFFICIENTS (SK) FOR FILTER ELEMENTS
The gradient coefcients in mbar/(l/min) apply to mineral oils with a kinematic
viscosity of 30 mm²/s. The pressure drop changes proportionally to the change in
viscosity.
∆p [bar]
Q [l/min]
BN4HC: DFDK... 30
∆p [bar]
Q [l/min]
BN4HC: DFDK... 160
∆p [bar]
Q [l/min]
BN4HC: DFDK... 60
∆p [bar]
Q [l/min]
BN4HC: DFDK... 240
∆p [bar]
Q [l/min]
BN4HC: DFDK... 110
∆p [bar]
Q [l/min]
BN4HC: DFDK... 280
∆p [bar]
Q [l/min]
BN4HC: DFDK... 500
∆p [bar]
Q [l/min]
BN4HC: DFDK... 660
∆p [bar]
Q [l/min]
BN4HC: DFDK... 990
∆p [bar]
Q [l/min]
BN4HC: DFDK... 1320
∆p [bar]
Q [l/min]
BN4HC: DFDK... 140
∆p [bar]
Q [l/min]
BN4HC: DFDK... 330
DFDK V W/HC, W BH4HC
3 µm 5 µm 10 µm 20 µm – 3 µm 5 µm 10 µm 20 µm
30 18.4 13.5 7.5 3.6 3.030 91.2 50.7 36.3 19.0
60 16.0 9.3 5.4 3.3 0.757 58.6 32.6 18.1 12.2
110 8.2 5.6 3.3 2.2 0.413 25.4 14.9 8.9 5.6
140 5.8 4.8 3.1 2.3 0.324 19.9 11.3 8.1 4.3
160 4.6 3.2 2.3 1.4 0.284 16.8 10.4 5.9 4.4
240 3.1 2.5 1.7 1.1 0.189 10.6 6.8 3.9 2.9
280 2.3 1.7 1.2 0.8 0.162 5.7 3.4 1.8 1.6
330 2.2 1.8 1.2 0.8 0.138 7.7 4.5 2.8 2.0
500 1.5 1.2 0.8 0.5 0.091 4.2 2.6 1.5 1.2
660 1.1 0.9 0.6 0.4 0.069 3.3 1.9 1.0 0.9
990 0.8 0.6 0.4 0.3 0.046 2.2 1.3 0.8 0.6
1320 0.6 0.5 0.3 0.2 0.035 1.6 1.0 0.6 0.4
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4. DIMENSIONS
blanking plug SW 27 or
clogging indicator if required
deep
E = vent
inlet
outlet
DFDK 30 - 280
DFDK 30 60 110 140 160 240 280
b1 130 138 138 138 190 190 190
b2 145 170 170 170 210 210 210
b4 80 92 92 92 128 128 128
b5 35 45 45 45 52.5 52.5 52.5
b6 96 121.5 121.5 121.5 157.5 157.5 157.5
b7 47 54 54 54 75.5 75.5 75.5
b8 22,8 26 26 26 35.5 35.5 35.5
b9 80.9 87 87 87 105 105 105
b10 80.9 48.5 48.5 48.5 52.5 52.5 52.5
b11 59 54 54 54 75.5 75.5 75.5
b12 7.5 16 16 16 10 10 10
b13 (≈) 131 150 150 150 193 193 193
b14 (≈) 155 181 181 181 221 221 221
d1* G ½ G ¾ G ¾ G ¾ G 1½ G 1½ G 1½
d2* G ½ G ¾ G ¾ G ¾ G 1½ G 1½ G 1½
d3 52.2 68.2 68.2 68.2 95.2 95.2 95.2
d4 M6 M6 M6 M6 M10 M10 M10
h1 64 78 78 78 96 96 96
h2 80 117 117 117 162 162 162
h3 8 19.5 19.5 19.5 33 33 33
h4 47 64.5 64.5 64.5 106 106 106
h5 43 76 76 76 100 100 100
h6 171 204.5 272.0 315.5 282.5 342.5 524.5
h7 (≈) 180 205 205 205 245 245 245
h8 75 75 75 75 85 85 85
h9 5 5 5 5 5 5 5
t1 7 7 7 7 11 11 11
SW1 24 27 27 27 32 32 32
SW2 6 10 10 10 10 10 10
SW3 9 12 12 12 14 14 14
Weight
incl. 7.4 15.0 17.0 18.9 33.0 36.0 45.0
element [kg]
Volume of
pressure 2x0.13 2x0.20 2x0.33 2x0.40 2x0.60 2x0.80 2x1.60
chamber [l]
drain
* SAE connection 6000 psi
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DFDK 330 - 660..1.x
ange connection
drain
DFDK 330 500 660 1.x 660 2.x 990 1320
b1 359 359 359 359 359 359
b2 385 385 385 385 385 385
b3 127 127 127 127 127 127
b4 265 265 265 265 265 265
b5 115 115 115 115 115 115
b6 309 309 309 309 309 309
b7 96.8 96.8 96.8 96.8 96.8 96.8
b8 60.5 60.5 60.5 60.5 60.5 60.5
b9 212 212 212 212 212 212
b10 44.5 44.5 44.5 44.5 44.5 44.5
b11 175.5 175.5 175.5 175.5 175.5 175.5
b12 13 13 13 13 13 13
b13 (≈) 326 326 326 326 326 326
b14 (≈) 405 405 405 405 405 405
d1* DN 50 (2") DN 50 (2") DN 50 (2") DN 50 (2") DN 50 (2") DN 50 (2")
d2* DN 50 (2") DN 50 (2") DN 50 (2") DN 50 (2") DN 50 (2") DN 50 (2")
d3 130.2 130.2 130.2 130 130 130
d4 M12 M12 M12 M12 M12 M12
d5 M20 M20 M20 M20 M20 M20
h1 239 239 239 239 239 239
h2 190 190 190 190 190 190
h3 13 13 13 13 13 13
h4 98 98 98 98 98 98
h5 108 108 108 108 108 108
h6 357.5 450.5 527.0 521.5 677.5 843.5
h7 (≈) 309 309 309 309 309 309
h8 95 95 95 95 500 670
t1 13 13 13 13 13 13
t2 27 27 27 27 27 27
Weight
incl. 151.5 159.0 165.0 171.0 184.4 202.4
element [kg]
Volume of
pressure 2x1.50 2x2.20 2x3.00 2x3.00 2x4.50 2x6.00
chamber [l]
DFDK 660 - 1320..2.x
blanking plug SW 27 or
clogging indicator as an option
outlet
drain
E = vent
pressure equalization spindle
ange connection
inlet
* SAE connection 6000 psi
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DFDK top-removable models 1320, 2640, 3960 ... 3.x
DFDK 1320 ... 3.x 2640 ... 3.x 3960 ... 3.x
b1 - 245 245
b2 - - 405
b3 170 325 485
b4 60 135 135
b5 135 135 135
b6 110 265 425
h1 991 991 991
h2 570 570 570
Weight incl. element [kg] approx. 250 approx. 445 approx. 640
Vol. of pressure chamber [l] 2 x 7.00 2 x 14.00 2 x 20.00
deep
pressure
equalization
inlet
vent
blanking plug SW 27
or clogging indicator
as an option
Series 3960
Series 2640
Series 1320
outlet
test point
drain
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NOTE
The information in this brochure relates to the operating conditions and
applications described.
For applications or operating conditions not described, please contact the relevant
technical department.
Subject to technical modications.
HYDAC FILTERTECHNIK GMBH
Industriegebiet
D-66280 Sulzbach/Saar
Tel.: 0 68 97 / 509-01
Fax: 0 68 97 / 509-300
Internet: www.hydac.com
E-Mail: lter@hydac.com
NOTES
