Fluid Products, Non-Drip Brass Couplings & Nipples

DN14 (Series 667)

  • Non-Drip design
  • Unlimited combination possibilities
  • Different safety levels to avoid mixing media

With unlimited combination possibilities, CEJN Series 667 non-drip modular couplings are adaptable to virtually all applications and system requirements. The Non-Drip design of the Series ensures practically zero spillage and eliminates pollution and air inclusion during connection and disconnection. The Series is available in three configurations: straight through, single shut-off and double shut-off. Series 667 is also available with color-coding and/or key coding for extra safety. Optional seal material upon request.


The Series is also available in four other sizes: Series 267, 467, 567 and 767. Please refer to Series 677 for a stainless steel version. For other sizes in stainless steel, refer to Series 277, 477, 577 and 777.

DN14 (Series 667)
Technical data
Nominal flow diameter: 14.0 mm (9/16")
Water flow (double shut-off): 168 l/min (37.0 GPM UK)
Max. working pressure: 20 bar (290 PSI)
Min. burst pressure: 80 bar (1160 PSI)
Temperature range: -15°C — +100°C (5°F — +212°F)
Material coupling: Nickel-plated brass
Material nipple: Nickel-plated brass
Kv (double shut-off): 5.04
Cv (double shut-off): 5.86
Comment: Single shut-off must utilize valved coupling and valveless nipple

Flow capacity is measured at 4 bar (58 PSI) pressure drop.

Fluid Flow
Pressure drop, bar (PSI)
DN14 (Series 667)
Flow, l/min. (GPM UK)
Black: Double shut-off, Grey: Single shut-off, Light grey: Straight through
Couplings without valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 667 0200106670200G 3/4"NBR74.74136
 10 667 04001066704003/4" NPTNBR72.24136


Couplings with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 667 1200106671200G 3/4"NBR74.74136
 10 667 14001066714003/4" NPTNBR72.24136


Nipples without valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 667 5200106675200G 3/4"NBR663634
 10 667 54001066754003/4" NPTNBR633634


Nipples with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 667 6200106676200G 3/4"NBR663634
 10 667 64001066764003/4" NPTNBR633634


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.

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