Fax             706-265-1477

Toll Free     855-457-4474

Text           770-887-0470

Phone         770-887-0470

Air Products Company is a leading distributor, serving this industry for the last 72 years, specializing in the sales and service of the Danfoss Hansen quick disconnect couplings, Graco pumps, sprayers, industrial fluid handling, and Fastest Inc line of leak detection equipment and fittings. 

* 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

Part Number Body Size ISO Size Nominal Flow Diameter Thread Size* Dimensions
NBR+AU FKM EPDM (in) (mm) (mm) NPT BSPP Fig D (in) E (in) F (in) G (in) Hex (in) D (mm) E (mm) F (mm) G (mm) Hex (mm)
ML6FFP25 ML6FFP25143 ML6FFP25192 1/4 6.3 6 1/4-18 - 2 2.01 0.46 0.94 1.58 0.87 51 11.6 24 40.1 22
ML6FFP25BS22 ML6FFP25BS143 ML6FFP25BS192 1/4 6.3 6 - 1/4-19 2 2.01 0.46 0.94 1.58 0.87 51 11.6 24 40.1 22
ML10FFP37 ML10FFP37143 ML10FFP37192 3/8 10 8.6 3/8-18 - 2 2.56 0.78 1.16 1.97 1.06 65 19.7 29.5 50 27
ML10FFP37BS ML10FFP37BS143 ML10FFP37BS192 3/8 10 8.6 - 3/8-19 2 2.56 0.78 1.16 1.97 1.06 65 19.7 29.5 50 27
ML10FFP50BS ML10FFP50BS143 ML10FFP50BS192 3/8 10 8.6 - 1/2-14 2 2.68 0.78 1.16 2.09 1.06 68 19.7 29.5 53 27
ML12FFP50 ML12FFP50143 ML12FFP50192 1/2 12.5 11 1/2-14 - 2 2.72 0.96 1.56 2.05 1.42 69 24.5 39.5 52 36
ML12FFP50BS ML12FFP50BS143 ML12FFP50BS192 1/2 12.5 11 - 1/2-14 2 2.72 0.96 1.56 2.05 1.42 69 24.5 39.5 52 36
ML12FFP75BS ML12FFP75BS143 ML12FFP75BS192 1/2 12.5 11 - 3/4-14 2 2.83 0.96 1.56 2.17 1.42 72 24.5 39.5 55 36
ML16FFP75 ML16FFP75143 ML16FFP75192 5/8 16 13 3/4-14 - 2 2.83 1.06 1.56 1.42 1.42 72 27 39.5 36 36
ML16FFP75BS ML16FFP75BS143 ML16FFP75BS192 5/8 16 13 - 3/4-14 2 2.83 1.06 1.56 1.42 1.42 72 27 39.5 36 36
ML19FFP75 ML19FFP75143 ML19FFP75192 3/4 19 15 3/4-14 - 2 3.70 1.18 1.77 2.83 1.61 94 29.9 45 72 41
ML19FFP75BS ML19FFP75BS143 ML19FFP75BS192 3/4 19 15 - 3/4-14 2 3.70 1.18 1.77 2.83 1.61 94 29.9 45 72 41
ML19FFP100 ML19FFP100143 ML19FFP100192 3/4 19 15 1-11.5 - 2 3.70 1.18 1.77 2.83 1.61 94 29.9 45 72 41
ML19FFP100BS ML19FFP100BS143 ML19FFP100BS192 3/4 19 15 - 1-11 2 3.70 1.18 1.77 2.83 1.61 94 29.9 45 72 41
ML25FFP100BS ML25FFP100BS143 ML25FFP100BS192 1 25 18 - 1-11 2 4.12 1.42 2.36 2.17 2.17 104.6 36 60 55 55
ML25FFP125 ML25FFP125143 ML25FFP125192 1 25 18 1 1/4-11.5 - 2 4.12 1.42 2.36 2.17 2.17 104.6 36 60 55 55
ML40FFP150 ML40FFP150143 ML40FFP150192 1 1/2 - 30.1 1 1/2-11.5 - 2 4.13 2.24 2.61 3.01 2.36 105 57 66.3 76.5 60
ML40FFP150BS ML40FFP150BS143 - 1 1/2 - 30.1 - 1 1/2-11 2 4.13 2.24 2.61 3.01 2.36 105 57 66.3 76.5 60
- ML50FFP200143 - 2 - 39.2 2-11.5 - 2 5.31 2.87 3.29 3.80 2.95 135 73 83.5 96.6 75
- ML50FFP200BS143 - 2 - 39.2 - 2-11 2 5.31 2.87 3.29 3.80 2.95 135 73 83.5 96.6 75
Body Size ISO Size Size Socket Ring Part Number** Plug Ring Part Number** Tool Part Number Tool & Ring Kit Part Number***
- - - Blue Red Yellow Green Blue Red Yellow Green - -
3/8 10 10FF CR10FFSLB CR10FFSRD CR10FFSYL CR10FFSDG CR10FFPLB CR10FFPRD CR10FFPYL CR10FFPDG CR10FFSP93 CRKIT10FF
1/2 12.5 12FF CR12FFSLB CR12FFSRD CR12FFSYL CR12FFSDG CR12FFPLB CR12FFPRD CR12FFPYL CR12FFPDG CR12FFSP93 CRKIT12FF
5/8 16 16FF CR16FFSLB CR16FFSRD CR16FFSYL CR16FFSDG CR16FFPLB CR16FFPRD CR16FFPYL CR16FFPDG CR16FFSP93 CRKIT16FF
3/4 19 19FF CR19FFSLB CR19FFSRD CR19FFSYL CR19FFSDG CR19FFPLB CR19FFPRD CR19FFPYL CR19FFPDG CR19FFSP93 CRKIT19FF
ISO Size* Coupling Size Connected Plug/Male Half Socket/Female Half Connected Plug/Female Half Socket/Female Half Rated Flow** Fluid Loss Air Inclusion Force to Connect
(mm) (in) (bar) (psi) (bar) (psi) (bar) (psi) (bar) (psi) (bar) (psi) (bar) (psi) (lpm) (gpm ml-cc ml-cc N Lbs
6.3 1/4 250 3625 250 3625 250 3625 2335 33858 1640 23780 1330 19285 17 4.49 0.004 0.007 80 18
10 3/8 250 3625 250 3625 250 3625 1672 24244 1664 24128 845 12253 29 7.66 0.006 0.010 140 31.5
12 1/2 250 3625 250 3625 250 3625 1679 24346 997 14457 993 14399 55 14.53 0.012 0.013 195 43.8
16 5/8 250 3625 250 3625 250 3625 1190 17255 950 13775 880 12760 67 17.70 0.016 0.030 205 46.1
19 3/4 250 3625 250 3625 250 3625 1370 19865 882 12789 845 12253 105 27.74 0.034 0.0115 215 48.3
25 1 250 3625 250 3625 250 3625 1690 24505 1000 14500 850 12325 177 46.76 0.032 0.033 260 58.5
- 1-1/2 250 3625 250 3625 250 3625 750 10875 750 10875 750 10875 450 118.9 0.265 0.45 385 86.6
- 2 175 2535 175 2535 175 2535 525 7610 525 7610 525 7610 700 184.9 0.390 0.260 375 84.3

*For reference only, based on Eaton recommended temperatures. Contact Us for technical support for further information on fluid compatibility.

  • Standard body material: 316L Stainless steel corrosion resistant
  • Alternative end connections available upon request
  • Standard seal material: FKM, EPDM, NBR+AU, HNBR (upon request)
Body Size (in) Body Size (in) with color ring Part Number Coupling Type Dust Plug Material
1/4 - SDC6FF Socket PVC
3/8* - SDC10FF Socket PVC
1/2 3/8 SDC12FF Socket PVC
5/8 - SDC16FF Socket PVC
3/4 1/2 SDC19FF Socket PVC
1 3/4 SDC25FF Socket PVC

Color Coding Ring Option

* Alternative end connections available upon request. To obtain connected length of coupling, add dimensions A (Fig. 1) and G (Fig. 2) together.

Hansen's 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.

Seal Elastomer P/N Code ISO Size (6FF to 25FF) Max Operation Temp Range Non-ISO Size (40FF and 50FF) Max Operation Temp 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

​Product Features

Body Size (in) Body Size (in) with color ring Part Number Coupling Type Dust Plug Material
1/4 - PDC6FF Plug PVC
3/8* - PDC10FF Plug PVC
1/2 3/8 PDC12FF Plug PVC
5/8 - PDC16FF Plug PVC
3/4 1/2 PDC19FF Plug PVC
1 3/4 PDC25FF Plug PVC
Part Number Body Size ISO Size Nominal Flow Diameter Thread Size* Dimensions
NBR+AU FKM EPDM (in) (mm) (mm) NPT BSPP Fig A (in) B (in) C (in) Hex (in) A (mm) B (mm) C (mm) Hex (mm)
ML6FFS25 ML6FFS25143 ML6FFS25192 1/4 6.3 6 1/4-18 - 1 2.13 1.06 0.94 0.87 54 27 24 22
ML6FFS25BS ML6FFS25BS143 MLSFFS25192 1/4 6.3 6 - 1/4-19 1 2.13 1.06 0.94 0.87 54 27 24 22
ML10FFS37 ML10FFS37143 ML10FFS37192 3/8 10 8.6 3/8-18 - 1 2.68 1.26 1.16 1.06 68 32 29.5
ML10FFS37BS ML10FFS37BS143 ML10FFS37BS192 3/8 10 8.6 - 3/8-19 1 2.68 1.26 1.16 1.06 68 32 29.5 27
ML10FFS50BS ML10FFS50BS143 ML10FFS50BS192 3/8 10 8.6 - 1/2-14 1 2.80 1.26 1.16 1.06 71 32 29.5 27
ML12FFS50 ML12FFS50143 ML12FFS50192 1/2 12.5 11 1/2-14 - 1 3.27 1.50 1.56 1.42 83 38 39.5 36
ML12FFS50BS ML12FFS50BS143 ML12FFS50BS192 1/2 12.5 11 - 1/2-14 1 3.27 1.50 1.56 1.42 83 38 39.5 36
ML12FFS75BS ML12FFS75BS143 ML12FFS75BS192 1/2 12.5 11 - 3/4-14 1 3.39 1.50 1.56 1.42 86 38 39.5 36
ML16FFS75 ML16FFS75143 ML16FFS75192 5/8 16 13 3/4-14 - 1 3.39 1.66 1.56 1.42 86 42 39.5 36
ML16FFS75BS ML16FFS75BS143 ML16FFS75BS192 5/8 16 13 - 3/4-14 1 3.39 1.66 1.56 1.42 86 42 39.5 36
ML19FFS75 ML19FFS75143 ML19FFS75192 3/4 19 15 3/4-14 - 1 3.82 1.81 1.77 1.61 97 46 45 41
ML19FFS75BS ML19FFS75BS143 ML19FFS75BS192 3/4 19 15 - 3/4-14 1 3.82 1.81 1.77 1.61 97 46 45 41
ML19FFS100 ML19FFS100143 ML19FFS100192 3/4 19 15 1-11.5 - 1 3.80 1.82 1.77 1.61 97 46 45 41
ML19FFS100BS ML19FFS100BS143 ML19FFS100BS192 3/4 19 15 - 1-11 1 3.82 1.81 1.77 1.61 97 46 45 41
ML25FFS100BS ML25FFS100BS143 ML25FFS100BS192 1 25 18 - 1-11 1 4.07 2.36 2.36 2.17 104 60 60 55
ML25FFS125 ML25FFS125143 ML25FFS125192 1 25 18 1 1/4-11.5 - 1 4.07 2.36 2.36 2.17 104 60 60 55
ML40FFS150 ML40FFS150143 ML40FFS150192 1 1/2 - 30.1 1 1/2-11.5 - 1 5.01 3.13 2.76 2.56 127.4 79.5 70 65
ML40FFS150BS ML40FFS150BS143 - 1 1/2 - 30.1 - 1 1/2-11 1 5.01 3.13 2.76 2.56 127.4 79.5 70 65
- ML50FFS200143 - 2 - 39.2 2-11.5 - 1 6.17 3.84 3.46 3.15 156.8 97.5 87.8 80
- ML50FFS200BS143 - 2 - 39.2 - 2-11 1 6.17 3.84 3.46 3.15 156.8 97.5 87.8 80
  • Construction
  • Agriculture
  • Iron and Steel Industry
  • Railway
  • Oil and Gas
  • Marine
  • Material Handling
  • General Hydraulic applications

Figure 2

* For requests on alternative colors or installation instructions, please contact us. ** Orders must be in multiples of 10 pcs.

*** The kit consists of a tool plus 10 socket rings and 10 plug rings of each color.


* Alternative end connections available upon request. To obtain connected length of coupling, add dimensions A (Fig. 1) and G (Fig. 2) together.

​Applications & Markets

  •  Designed and manufactured under Article 3.3 of the European Pressure Equipment Directive PED 2014/68/EU
  • ​​Safety sleeve lock prevents accidental disconnections
  • ​Push to connect with double shut-off valving
  • Shock resistant color coding ring option available in sizes 10FF, 12FF, 16FF and 19FF to prevent accidental crossing of lines
  •  Resistant to aggressive environments and corrosion
  • Utilize FF Series dust caps

Figure 1

HANSEN MLFF FLAT FACE STAINLESS STEEL
google6163dcd91b0151c5.html