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The DIXON VALVE COUPLING -14255-9 is a steel pneumatic hose nipple coupling designed for compressed-air and pneumatic tool lines in industrial and mechanical service environments. Threaded to 3/4-inch MNPT (male national pipe taper), it connects hose assemblies to air supply lines, tool inlets, and manifold ports. Rated to 600 psi maximum working pressure, this coupling is built to handle demanding shop and field conditions. The NPT thread standard ensures reliable, leak-resistant engagement with standard pipe fittings. Steel construction provides durability in high-cycle applications. Sold in packages of 10, making it practical for shop restocking or fleet service operations.
This nipple coupling is suited for use in industrial pneumatic systems, air compressor distribution lines, and production floor tool drops. It is appropriate for both stationary compressor installations and portable air supply setups where a 3/4-inch MNPT connection is required. Typical installers include industrial mechanics, pipefitters, and maintenance technicians working on compressed-air infrastructure. The 600 psi pressure rating accommodates a broad range of pneumatic system operating pressures common in light and heavy manufacturing environments.
Designed as an OEM-style replacement or new-install fitting for pneumatic hose assemblies requiring a 3/4-inch MNPT nipple coupling connection with NPT thread standard.
Installation should be performed by a qualified industrial mechanic, pipefitter, or pneumatic systems technician. Depressurize and lock out the air supply line completely before removing or installing any pneumatic coupling. Apply thread sealant or PTFE tape appropriate for compressed-air service to the male threads before engagement. Do not overtighten; hand-tighten to thread engagement and then wrench-tighten to a snug fit without exceeding the fitting or mating component thread rating.
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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