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Series 777, DN19 Stainless steel

  • Stainless steel version with high resistance to corrosion
  • Durable and robust to tolerate long periods of connection
  • No-spill sealing suitable for cooling applications


The robust and reliable quick connect coupling series 777 with DN19 made of stainless steel is corrosion-free and adaptable to virtually all applications within the thermal management field. The non-drip design of the series ensures no spill and eliminates contamination and air inclusion into the cooling system. The one-hand-operated series is available in three versions: double shut-off, single shut-off and straight through. The coupling withstands over 10,000 connection cycles. Series 777 is available with colour-coding and/or key coding for extra safety. Optional sealing material is available 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. If you can’t find a product that meets your requirements, don’t hesitate to contact us, and we’ll put our R&D department at your disposal. Applications: Data server chiller cooling lines, chassis manifolds, IGBT’s, power converters, power inverters, rectifiers, industrial drives, power generators, heat exchangers, medical and industrial lasers, traction control, machine tools, solar power, alternative energy.

Technical data

Nominal flow diameter 19.0 mm (0.7″)
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) 10.8
Cv (double shut-off) 12.5
Comment Single shut-off must utilize valved coupling and valveless nipple

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Technical data:

Couplings (Socket) Part No. Connection Seal Length Diameter Hexagon
Female thread 10 777 1220 G 1″ (BSP), green code* EPDM 82 52 46
Nipple (Plug) Part No. Connection Seal Length Diameter Hexagon
Female thread 10 777 6220 G 1″ (BSP), green code* EPDM 67.5 44 41