Fluid Products, Non-Drip Stainless Steel Couplings & Nipples

DN14 (Series 677)

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

With unlimited combination possibilities, CEJN Series 677 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 677 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 277, 477, 577 and 777. Please refer to Series 667 for an all brass version. For other sizes in brass, refer to Series 267, 467, 567 and 767.

DN14 (Series 677)
Technical data
Nominal flow diameter: 14 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: -5°C — +205°C (23°F — +401°F)
Material coupling: Stainless steel, AISI 316
Material nipple: Stainless steel, AISI 316
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 677)
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 10 677 0210106770210G 3/4"FPM74.74136
 10 677 0410106770410NPT 3/4"FPM72.24136


Couplings with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 677 1210106771210G 3/4"FPM74.74136
 10 677 14101067714103/4" NPTFPM72.24136


Nipples without valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 677 5210106775210G 3/4"FPM663936
 10 677 5410106775410NPT 3/4"FPM633936


Nipples with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 677 6210106776210G 3/4"FPM663936
 10 677 6410106776410NPT 3/4"FPM633936


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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