Couplings and Nipples

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Hydraulic Products

Snap-Check / 358 - Quick Connect Pressure Testing

Couplings and Nipples

  • Connect under pressure up to 30 MPa
  • Compact design
  • High working pressure
  • One-hand operated
  • Dust caps included as standard

The couplings and nipples of the Snap-Check system have a maximum working pressure of 60 MPa. This ensures extra long, leak-free service and unsurpassed reliability. The system can also be connected under pressure up to 30 MPa on the nipple side and is available with G, R, NPT, UNF and metric threads. Couplings and nipples come with standard red dust caps to keep them clean and prevent dirt from entering the system.


CEJN's Snap-Check pressure testing system, monitors and diagnoses fluid systems in a snap. This monitoring system identifies operating pressure surges without the need for a permanently installed gauge. Applications include mobile equipment, injection molding machines, oil and gas equipment, marine vessels, and production machinery. For specific requirements, customized systems are available that include a wide range of gauges.

Technical data
Nominal flow diameter: 1.5 mm (1/16Inch)
Connection under pressure: 30.0 MPa
Max. working pressure connected: 60.0 MPa
Min. burst pressure connected: 130.0 MPa
Min. burst pressure disconnected: 240.0 MPa
Temperature range: -30°C — +100°C (-22°F — +212°F)
Couplings without valve Part No. Connection Length Diameter Hexagon
Female thread 103580202G 1/4"46.823.420
 1035804021/4" NPT46.323.420
Female, 90° angle thread 103580232G 1/4"56.323.422
 1035804321/4" NPT56.323.422


Nipples with valve Part No. Connection Length Diameter Hexagon
Male thread 103586151R 1/8"49.719.617
 103586152R 1/4"53.819.617
 103586154R 3/8"53.819.617
 103586251G 1/8"51.819.617
 103586282G 1/4"53.721.919
 103586254G 3/8"53.827.724
 1035864511/8" NPT48.819.617
 1035864521/4" NPT52.719.617
 1035864543/8" NPT52.719.617
 103586551M10x1.2550.819.617
 103586552M12x1.553.819.617
 103586554M14x1.553.723.120
 103586752UNF 7/16" - 2054.819.617
 103586755UNF 7/8" - 1455.334.630


Thread connections are listed according to ISO Standards. All measurements are in mm. Check with an authorized CEJN distributor for availability and prices.