Fluid Products, Non-Drip Stainless Steel Couplings & Nipples

DN4 (Series 277)

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

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

DN4 (Series 277)
Technical data
Nominal flow diameter: 4.0 mm (5/32")
Water flow (double shut-off): 17 l/min (3.7 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): 0.51
Cv (double shut-off): 0.59
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)
DN4 (Series 277)
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 10 277 0210102770210G 1/4"FPM43.52319
 10 277 04101027704101/4" NPTFPM59.22319


Couplings with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 277 1210102771210G 1/4"FPM43.52319
 10 277 14101027714101/4" NPTFPM59.22319


Nipples without valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 277 5210102775210G 1/4"FPM48.52019
 10 277 54101027754101/4" NPTFPM48.52019


Nipples with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 277 6210102776210G 1/4"FPM48.52019
 10 277 64101027764101/4" NPTFPM48.52019


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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