Coilhose Pneumatics 123A Pneumatic Hose Coupler 1/2 in

Product Description

The COILHOSE PNEUMATICS 123A is a brass pneumatic hose coupler designed for use in compressed-air systems. It features a 1/2-inch body diameter and a 3/8-inch female NPT (FNPT) threaded connection, making it a standard threaded coupler for connecting air hoses and pneumatic tools. Rated for a maximum working pressure of 300 psi and a temperature range of -40 degrees F to 250 degrees F, this coupler handles the operating conditions found in typical shop and industrial compressed-air setups. Installation is straightforward for any technician working with pneumatic distribution lines.

This coupler follows the Industrial Interchange standard, which is one of the most widely used pneumatic coupling formats in North American shops, garages, and light industrial facilities. It is suited for residential and commercial applications where a reliable, pressure-rated brass fitting is needed to connect air hoses to compressors, manifolds, or pneumatic tool circuits. The FNPT thread type allows direct connection to standard pipe-threaded ports without adapters in most common installations.

Key Features

• Industrial Interchange coupling type for broad compatibility with standard pneumatic fittings
• Brass construction for corrosion resistance and durability in compressed-air service
• 3/8-inch female NPT thread for direct pipe-threaded connection
• 1/2-inch body diameter for adequate flow capacity in typical shop air circuits
• 300 psi maximum working pressure rating
• Wide temperature range: -40 degrees F to 250 degrees F

Compatibility

Designed as an OEM-style replacement or service coupler for pneumatic hose and air tool systems using Industrial Interchange-standard couplings with 3/8-inch FNPT threaded connections.

Installation Notes

This coupler is installed by a technician or pipefitter working on compressed-air distribution lines. Always depressurize and bleed down the air system completely before removing or installing any pneumatic fitting. Apply appropriate thread sealant tape or compound to the NPT threads before assembly to ensure a leak-free connection. Tighten to snug with a wrench, following standard pipe-fitting practice — do not overtighten brass fittings.