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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.
Technical data
| Nominal flow diameter | 4.0 mm (0.2″) |
| 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) | 0.39 |
| Cv (double shut-off) | 0.45 |
| Comment | Single shut-off must utilize valved coupling and valveless nipple |
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Technical data:
| Couplings without valve | Part No. | Connection | Seal | Length | Diameter | Hexagon |
| Female thread | 10 277 0210 | G 1/4″ | FPM | 43.5 | 23 | 19 |
| 10 277 0410 | 1/4″ NPT | FPM | 59.2 | 23 | 19 | |
| Couplings with valve | Part No. | Connection | Seal | Length | Diameter | Hexagon |
| Female thread | 10 277 1210 | G 1/4″ | FPM | 43.5 | 23 | 19 |
| 10 277 1410 | 1/4″ NPT | FPM | 59.2 | 23 | 19 | |
| Nipples without valve | Part No. | Connection | Seal | Length | Diameter | Hexagon |
| Female thread | 10 277 5210 | G 1/4″ | FPM | 48.5 | 20 | 19 |
| 10 277 5410 | 1/4″ NPT | FPM | 48.5 | 20 | 19 | |
| Nipples with valve | Part No. | Connection | Seal | Length | Diameter | Hexagon |
| Female thread | 10 277 6210 | G 1/4″ | FPM | 48.5 | 20 | 19 |
| 10 277 6410 | 1/4″ NPT | FPM | 48.5 | 20 | 19 | |