Fluid Products, Non-Drip Stainless Steel Couplings & Nipples

DN19 (Series 777)

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

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

DN19 (Series 777)
Technical data
Nominal flow diameter: 19.0 mm (3/4")
Water flow (double shut-off): 306 l/min (67.3 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): 9.18
Cv (double shut-off): 10.67
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)
DN19 (Series 777)
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 10 777 0210107770210G 1"FPM82.35246
 10 777 0410107770410NPT 1"FPM79.35246


Couplings with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 777 1210107771210G 1"FPM825246
 10 777 1410107771410NPT 1"FPM795246


Nipples without valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 777 5210107775210G 1"FPM67.54441
 10 777 5410107775410NPT 1"FPM64.54441


Nipples with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 777 6210107776210G 1"FPM67.54441
 10 777 6410107776410NPT 1"FPM64.54441


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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