Cejn 10 550 5404 Pneumatic Coupling 1/2 in Fnpt

Product Description

The CEJN 10 550 5404 is a high-flow pneumatic hose connector in the 550 Series, designed for industrial compressed-air systems. The connector features a 3/8-inch FNPT threaded connection and a 1/2-inch body diameter, and is rated for a maximum working pressure of 232 psi. Built from steel with a zinc finish, this fitting is engineered to handle demanding shop and industrial environments. It mates with Industrial Interchange-standard couplers, making it a direct-fit option for existing pneumatic infrastructure. Licensed HVAC technicians, pipefitters, and industrial maintenance mechanics typically specify this type of connector when building or extending compressed-air distribution lines.

The 10 550 5404 is suited for use in industrial and commercial compressed-air applications where high-flow capacity and reliable sealing are required. Its FNPT thread type allows straightforward connection to standard pipe threads on air headers, manifolds, and pneumatic tool supply lines. The Industrial Interchange configuration ensures broad compatibility with the most widely used quick-disconnect coupler bodies found in production facilities, maintenance shops, and service bays. Operating temperature range spans -4 degrees F to 212 degrees F, supporting use across a wide range of indoor and outdoor service conditions.

Key Features

• High-flow connector design in the CEJN 550 Series for increased air volume delivery
• 3/8-inch FNPT threaded connection for standard pipe-thread fitment
• 1/2-inch body diameter for reduced pressure drop in high-demand applications
• 232 psi maximum working pressure rating
• Steel body with zinc finish for corrosion resistance in shop environments
• Wide operating range: -4 degrees F to 212 degrees F

Compatibility

Designed for use with Industrial Interchange-standard pneumatic quick-disconnect coupler bodies. Fits any application requiring a 3/8-inch FNPT high-flow connector in the 1/2-inch coupler size class.

Installation Notes

Installation is performed by qualified pipefitters or industrial maintenance mechanics working on compressed-air distribution systems. Depressurize and bleed the air line completely before removing or installing any fitting. Apply thread sealant appropriate for compressed-air service to the FNPT threads per the sealant manufacturer and applicable codes. Do not overtighten; hand-snug plus wrench turns per fitting size is the standard practice to avoid thread damage on steel fittings.