Thermal Control Products, ultraFLOW Couplings & Nipples

Series 787, DN20 Aluminium

  • Unequalled low pressure drop
  • Lightweight and compact design
  • Colour coding option to eliminate cross connection
  • Universal connections for total flexibility

The CEJN Series 787 ultraFLOW is especially suitable for the cooling systems in power electronics; transportation, industry, renewable energy but also in broadcasting and microelectronics such as data server cabinets with liquid cooled read door heat exchanger (RDHX) or for the manifold supply lines to direct liquid cooled server blades. This two-hand operated, lightweight, hard-coated, high strength aluminium connector has been provided with the best possible characteristics for applications where leaks are not an option! ultraFLOW’s smart design minimizes flow restrictions and provides a long-lasting connection, with non-leak performance during disconnection. It is resistant to vibrations and mechanical stresses, which is required in the railway traction sector. To give you maximum hardware output and low running costs, the ultraFLOW has an extreme high flow capacity meaning an unequalled low pressure drop to minimize system pressure required and, thus, reducing your Total Cost of Ownership.

Applications: High-performance computing (HPC) racks/switch blades, chassis manifolds, cold plate, rack CDU manifolds, GPU cards LED equipment, fuel cells, graphic cards, theatre projectors, medical imaging equipment, IGBTs, power converters, power inverters, rectifiers, Li-Ion batteries capacitors. Are you looking for a different size or sealing or body material? Don’t hesitate to contact us and we’ll put our R&D department at your disposal, other sizes are under development. (Water Flow Series 787 DN20 PDF)

Series 787, DN20 Aluminium
Couplings (Sockets) Part No. Connection Seal A B C D
Female thread 10 787 1223 107871223G 1" (BSP)EPDM116.154.0-46
 10 787 1224 107871224G 1 1/4" (BSP)EPDM126.155.0-50
 10 787 1233 107871233G 1" (BSP)FMVQ116.154.0-46
 10 787 1234 107871234G 1 1/4" (BSP)FMVQ126.155.0-50
Male thread 10 787 1273 107871273G 1" (BSP)EPDM135.154.019.046
 10 787 1274 107871274G 1 1/4" (BSP)EPDM135.155.020.050
 10 787 1283 107871283G 1" (BSP)FMVQ135.154.019.046
 10 787 1284 107871284G 1 1/4" (BSP)FMVQ135.155.020.050

Nipples (Plugs) Part No. Connection Seal A B C D
Female thread 10 787 6223 107876223G 1" (BSP)EPDM105.045.0-41
 10 787 6224 107876224G 1 1/4" (BSP)EPDM107.555.0-50
 10 787 6233 107876233G 1" (BSP)FMVQ105.045.0-41
 10 787 6234 107876234G 1 1/4" (BSP)FMVQ107.555.0-50
Male thread 10 787 6273 107876273G 1" (BSP)EPDM105.050.019.046
 10 787 6274 107876274G 1 1/4" (BSP)EPDM105.055.020.050
 10 787 6283 107876283G 1" (BSP)FMVQ105.050.019.046
 10 787 6284 107876284G 1 1/4" (BSP)FMVQ105.055.020.050

Accessories Part No. Connection Seal        
Washer/ O-ring 10 787 4283 107874283G 1" (BSP)FMVQ    
 10 787 4284 107874284G 1 1/4" (BSP)FMVQ    
 10 787 4273 107874273G 1" (BSP)EPDM    
 10 787 4274 107874274G 1 1/4" (BSP)EPDM    

Check with an authorized CEJN distributor for availability and prices. Other connections and sealing material on request. Some part numbers may be subject to minimum order quantities. CEJN reserves the right to make changes without further notification. Thread connections are listed according to ISO Standards. All measurements are in mm.
Technical data
Nominal flow diameter: 20 mm (4/5")
Max. working pressure: 10 bar (145 PSI)
Min. burst pressure: 40 bar (580 PSI)
Temperature range: -40°C — +150°C (-40°F — +302°F)
Material coupling: Hard anodized aluminium
Material nipple: Hard anodized aluminium
Kv (double shut-off): 15.7
Cv (double shut-off): 18.2
Comment: Flow coefficient Kv/ Cv are specified for flow direction with lowest value. Color coding possible as an option.
Material seal: EPDM -30°C - +150°C; FMVQ -40°C - +150°C


Pressure drop, bar (PSI) Series 787, DN20 Aluminium Flow, l/min. (GPM)

Available files for download

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