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The CEJN 10 310 5451 is a zinc-plated steel pneumatic hose coupling designed for use in compressed air and pneumatic fluid transfer systems. Classified as an Industrial Interchange connector, it features a 1/4-inch body diameter and a 1/8-inch male NPT threaded connection. Rated to 230 psi maximum working pressure, this coupling handles a temperature range of -4 degrees F to 212 degrees F, making it suitable for demanding shop and industrial environments. Licensed HVAC technicians, plumbers, and industrial maintenance mechanics commonly install this type of fitting when connecting pneumatic lines, hoses, and equipment in pressurized air systems.
This coupling is intended for use in industrial and commercial pneumatic systems where standard Industrial Interchange compatibility is required. It is well suited for connecting air tools, pneumatic actuators, and compressed air distribution lines in shop settings, manufacturing facilities, and mechanical rooms. The threaded NPT connection allows direct assembly into standard pipe fittings and manifolds without adapters.
Designed as an OEM-style replacement or direct-install fitting for Industrial Interchange pneumatic systems using 1/8-inch MNPT threaded connections and 1/4-inch body diameter couplings.
Installation should be performed by a qualified mechanic or technician familiar with pressurized pneumatic systems. Depressurize and lock out the air supply before removing or installing any coupling. Apply thread sealant appropriate for pneumatic service to the MNPT threads before assembly. Verify that the system operating pressure does not exceed the 230 psi rating of this fitting.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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