Connection Types

There are 6 main connection types outlined in the ISO 12151

ISO 12151-1 Connections for hydraulic fluid power and general use. Hose couplings with ISO 8434-3 O-ring face-seal ends
ISO 12151-2 Connections for hydraulic fluid power and general use. Hose couplings with ISO 8434-1 and ISO 8434-4 24° cone connector ends with O-rings
ISO 12151-3 Connections for hydraulic fluid power and general use. Hose couplings with ISO 6162 flange ends
ISO 12151-4 Connections for hydraulic fluid power and general use. Hose couplings with ISO 6149 metric stud ends
ISO 12151-5 Connections for hydraulic fluid power and general use. Hose couplings with ISO 8434-2 37° flared ends
ISO 12151-6 Connections for hydraulic fluid power and general use. Hose couplings with ISO 8434-6 60° cone ends

Threads PDF_AnchorCouplingsThreadidentification.pdf

 

ISO 12151-1 Hose couplings with ISO 8434-3 O-ring face-seal ends, common name ORFS CFS description PR (male) and OR (female)

 

This was originally a joint development between Caterpillar, John Deere, Parker and Aeroquip

  • There is a short and a long version for the straights
  • 90° elbows are available in short (S), medium (M) and long (L) drop
  • Mainly female, but as well male couplings available

 

ISO 12151-2 Hose couplings with ISO 8434-1 and ISO 8434-4 24° cone connector ends with O-rings, Metric light and heavy series, common name DKOL, DKOS CFS description CL/CH male, DL/DH female

 

This metric connection is very common in Germany and many other European countries, former DIN 20078

  • Light and heavy series thread connections sometimes confusing
  • Male (straight) and female versions (str., 45°, 90°)

 

ISO 12151-3 Hose couplings with ISO 6162 flange ends, common name Code 61 (3000 psi) and Code 62 (6000 psi) flanges CFS description FH and FL

 

This is the most common high-pressure connection, especially in sizes ¾” and above

  • Commonly called SAE Flanges light and heavy
  • Not specified in -10
  • Straights, 22,5°, 30°, 45°, 60°, 67,5°, 90°elbows
  • O-ring grove for soft-seal to flat port surface
  • Mounted with split- or captive flanges

 

ISO 12151-5 Hose couplings with ISO 8434-2 37° flared ends, SAE J 517, common name JIC 37° CFS description male/female IC/JC

 

This is a very common connector in USA, as well as e.g. in Italy, precursor of ORFS as it has limited pressure-rates

  • Metallic sealing, UNF thread
  • Can be confused with SAE 45° or JIS 30°connector
  • Straights, 45°, 90°elbows
  • Straights specified with back-hexagon nut, but also produced without a back-hexagon nut
  • 90° elbows available in short, medium and long drop version

 

ISO 12151-6 Hose couplings with ISO 8434-6 60° cone ends, BSP, British standard pipe, BS 5200, common name AGR/DKR CFS description male/female AP/BP, with O-ring BO

 

This is a very common connector in UK

  • Metallic or soft-sealing (O-ring), Whitworth thread
  • Only soft-seal version is specified in ISO 12151-6
  • Straights, 45°, 90°elbows

 

JIS 30° Japanese standard JIS B8363

 

This is a very common connector in Japan, available in 3 different versions

  • BSP thread (Toyota type)
  • Metric thread (Komatsu type)
  • Inverted sealing seat (Nissan type)
  • Metallic sealing
  • Can be confused with JIC 37°

 

Banjo DIN 762 and DIN 763 for metric or BSP bolts German short description RGN (metric) and RGR (inch) CFS description DB (metric) and BB (inch)

 

Origin Germany

  • Metallic sealing with copper washer
  • Limited pressure-range
  • Used in tight space applications

 

Customized connectors for Kobelco in the style of Metric 24°ISO 12151-2

 

  • Metallic sealing
Metric Thread Tube O.D. (mm) Thread O.D. on male (mm) Thread I.D. in female (mm)
M30x1,5 22 30,00 28,50
M36x1,5 28 36,00 34,50
M45x1,5 35 45,00 43,50

 

NPTF SAE J 516, male port connection

 

CFS description NP

  • Origin USA, used by Caterpillar, John Deere etc.
    • Metallic sealing along the thread flanks
    • Cone thread
    • Do not confuse with cone BSP male port connector

 

Nomenclature of CFS Anchor couplings

Smart code description

  • There is a 9 digit smart-code for CFS Anchor couplings
  • Due to the smart-code it is very easy to identify and determine the correct coupling
1 Anchor ID. NO.
2 Thread or Head Type
3
4 Straight Elbow Conf.
5 Fitting Connection Size
6
7 Tail Hose Size
8
9 Optional Features
10 SAP system
11
12