Quick Disconnect Couplings - Flipbook - Seite 68
Fluid transfer & Hydraulic application
Global region
Danfoss Hansen MLFF Series stainless steel coupling is
a flat face dry break coupling used for hydraulic applications. The MLFF Series interchanges with all ISO 16028
profiles. Due to its stainless steel design, it is corrosion
resistant and can handle aggressive environments.
MLFF Series (Stainless Steel)
ISO 16028 Flat Face/Dry Break
Product Features
• Designed and manufactured under Article 4.3
of the European Pressure Equipment Directive
PED 2014/68/EU
• Shock resistant color coding ring option
available in sizes 10FF, 12FF, 16FF and 19FF to
prevent accidental crossing of lines
• Safety sleeve lock prevents accidental
disconnections
• Resistant to aggressive environments and
corrosion
• Push to connect with double shut-o昀昀 valving
• Utilize FF Series dust caps
• Standard body material: 316L Stainless steel
corrosion resistant (valve material is F15NM)
• Alternative end connections available upon
request
• Standard seal material: FKM, EPDM, NBR+AU,
HNBR (upon request)
Physical Characteristics
ISO
Size*
(mm)
Coupling
Size
(in)
6.3
¼
10
12
½
16
Maximum Operating Pressure
Plug/
Socket/
Male Half
Female Half
(bar) (psi)
(bar) (psi)
Connected
(bar) (psi)
Minimum Burst Pressure
Plug/
Connected
Male Half
(bar) (psi)
(bar)
(psi)
Socket/
Female Half
(bar) (psi)
Fluid
Loss
ml-cc.
Rated Flow**
(lpm) (gpm)
Air
Inclusion
ml-cc.
Force to Connect
N
Lbs
250
3,625
250
3,625
250
3,625
2,335
33,858
1,640
23,780
1,330 19,285
17
4.49
0.004
0.007
80
18.0
250
3,625
250
3,625
250
3,625
1,672
24,244
1,664
24,128
845
29
7.66
0.006
0.010
140
31.5
12,253
250
3,625
250
3,625
250
3,625
1,679
24,346
997
14,457
993
14,399
55
14.53
0.012
0.013
195
43.8
250
3,625
250
3,625
250
3,625
1,190
17,255
950
13,775
880
12,760
67
17.70
0.016
0.030
205
46.1
48.3
19
¾
250
3,625
250
3,625
250
3,625
1,370
19,865
882
12,789
845
12,253
105
27.74
0.034
0.015
215
25
1
250
3,625
250
3,625
250
3,625
1,690
24,505
1,000
14,500
850
12,325
177
46.76
0.032
0.033
260
58.5
-
1"½
250
3,625
250
3,625
250
3,625
750
10,875
750
10,875
750
10,875
450
118.9
0.265
0.445
385
86.6
-
2"
175
2,535
175
2,535
175
2,535
525
7,610
525
7,610
525
7,610
700
184.9
0.390
0.260
375
84.3
* The ISO size corresponds to the internal diameter of the hose or the external diameter of the rigid tube (as defined in ISO 4397 Standard)
** Indicated values refer to a 1 bar/14.5 psi pressure drop
Flow Data
Flow rate (l/min)
European Pressure
Equipment Directive
All couplings are designed and
manufactured under Article
4.3 of the European Pressure
Equipment Directive PED
2014/68/EU. Couplings with
nominal diameters greater than
25 mm should not be used
to convey gases in Group 1
(hazardous).
10
100
1000
5
58,0
4
43,5
3
29,0
2
14.5
1
7,25
0,5
4,35
0,3
2,90
0,2
1.45
0.264
Pressure drop (bar)
Applications & Markets
• Construction
• Agriculture
• Iron and Steel Industry
• Railway
• Oil and Gas
• Marine
• Material Handling
• General Hydraulic
Applications
Pressure drop (PSI)
1
72,5
0.1
2.64
26.4
264
Flow rate (gpm)
Seal Elastomer Data*
Seal Elastomer
P/N Code
ISO Size (6FF to 25FF)
Maximum Operation
Temperature Range
Non-ISO Size (40FF and 50FF)
Maximum Operation
Temperature Range
NBR (Nitrile) + AU (Polyurethane)
-
-25°C +100°C/-13°F +212°F
on request
FKM
-143
-20°C +200°C/-4°F +392°F
-20°C +200°C/-4°F +392°F
EPDM (Ethylene-Propylene)
-192
-40°C +150°C/-40°F +302°F
on request
*For reference only, based on Danfoss recommended temperatures.
Contact Danfoss technical support for further information on fluid compatibility.
Maximum Operating Pressure
Non hazardous liquids Group 2 Non hazardous gases Group 2 Hazardous liquids Group 1
Coupling Nominal Flow Plug &
Size
Diameter
Connected
Socket
Plug &
Connected
Socket
Plug &
Connected
Socket
(in)
1½
2
30.1
39.2
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
bar
(psi)
300
300
4350
4350
270
225
3915
3260
300
25
4350
360
270
25
3915
360
66
50
955
725
66
50
955
725
* Nominal diameters over 25mm should not be used to convey gases in group 1 (PED 2014/68/EU)
Danfoss Quick Disconnect Couplings Master Catalog
AF435258198969en-000102
68
