Fluid Products, Classic Couplings & nipples

Series 704

  • One-hand operated
  • High-flow capacity
  • Low connection force

Requiring only one hand for operation, Series 704 couplings feature a two-way shut-off. Series 704 is suitable for water inlet and return for injection molding lines.


Please refer to CEJN Series 706 for a stainless steel version. Straight through version available on request.

Series 704
Technical data
Nominal flow diameter: 19.0 mm (3/4")
Water flow (double shut-off): 260 l/min (57.2 GPM UK)
Water flow (single shut-off): 390 l/min (85.8 GPM UK)
Max. working pressure: 35 bar (507 PSI)
Min. burst pressure: 140 bar (2030 PSI)
Temperature range: -30°C — +100°C (-22°F — +212°F)
Material coupling: Chrome-plated brass
Material nipple: Chrome-plated brass
Kv (double shut-off): 7.80
Cv (double shut-off): 9.07
Kv (single shut-off): 11.7
Cv (single shut-off): 13.6

Flow capacity is measured at 4 bar (58 PSI) pressure drop.

Fluid Flow
Pressure drop, bar (PSI)
Series 704
Flow, l/min. (GPM UK)
Black: Double shut-off, Grey: Single shut-off
Couplings with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 704 1203107041203G 1"NBR9453.146
 10 704 1213107041213G 1"FPM9453.146
 10 704 14031070414031" NPTNBR9453.146
 10 704 14131070414131" NPTFPM9453.146


Nipples with valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 704 6203107046203G 1"NBR91.553.146
 10 704 6213107046213G 1"FPM91.553.146
 10 704 64031070464031" NPTNBR91.553.146
 10 704 64131070464131" NPTFPM91.553.146


Nipples without valve Part No. Connection Seal Length Diameter Hexagon
Female thread 10 704 5203107045203G 1"NBR91.553.146


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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