Cejn 10 320 2404 Safety Coupler 1/4 in High Flow Fnpt

Product Description

The CEJN 10 320 2404 is a Series 320 pneumatic safety coupler designed for high-flow compressed air applications in industrial and trade environments. The coupler features a 1/4 inch body diameter and accepts a 3/8 inch female NPT threaded connection, with a zinc-finished brass and steel construction that balances durability with corrosion resistance. It is rated to a maximum working pressure of 230 psi and handles temperatures from -4 degrees F to 212 degrees F, making it suitable for a wide range of shop, production, and field pneumatic systems. HVAC technicians, industrial maintenance techs, and plumbers who work with pneumatic tools install this type of coupler as a standard service fitting.

This coupler fits into high-flow pneumatic tool circuits where a standard interchange coupler would restrict airflow and reduce tool performance. The High Flow interchange type is commonly specified on air-powered impact wrenches, grinders, and other high-demand pneumatic tools. The FNPT threaded connection allows direct installation into air hose assemblies, manifolds, and pneumatic tool inlets with standard pipe thread sealant. It is sold individually and is appropriate for both new installations and replacement of worn or damaged couplers in existing pneumatic systems.

Key Features

• High Flow interchange type for reduced pressure drop across the coupling
• 3/8 inch FNPT threaded connection for standard pipe thread compatibility
• 1/4 inch coupler body diameter rated to 230 psi maximum working pressure
• Brass and steel construction with zinc finish for corrosion resistance
• Operating range from -4 degrees F to 212 degrees F suits most shop and field environments
• Series 320 design with safety coupler mechanism to prevent accidental disconnection under pressure

Compatibility

Designed as an OEM-style replacement or new-install safety coupler for pneumatic systems using High Flow interchange standard fittings with 3/8 inch FNPT threaded connections.

Installation Notes

Installation should be performed by a qualified technician. Depressurize and bleed the air line completely before removing or installing any pneumatic coupler. Apply a compatible thread sealant or PTFE tape to the FNPT threads before tightening. Do not overtighten brass-body fittings; hand-tight plus one to two turns with a wrench is the standard practice for NPT connections in pneumatic service.