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The DIXON VALVE COUPLING -14255-3 is a male NPT (MNPT) pneumatic hose nipple coupling designed for use in compressed air and pneumatic tool applications. Constructed from steel, this nipple-style coupling features a 3/8 inch MNPT thread and is rated to a maximum working pressure of 600 psi. It is compatible with hoses having a 3/8 inch inside diameter. This fitting is typically installed by HVAC technicians, pipefitters, industrial maintenance mechanics, and plumbers working on pneumatic supply lines and compressed air distribution systems.
This nipple coupling is suited for residential, commercial, and light industrial pneumatic systems where a reliable threaded male connection is required. It is commonly used to join pneumatic hose assemblies to tools, valves, manifolds, or other fittings along a compressed air circuit. The steel construction makes it appropriate for higher-pressure service environments where durability under repeated connection cycles is a priority. Sold in a package quantity of 10, making it practical for shop stocking or multi-point installations.
Designed as an OEM-style replacement or standard stock nipple coupling for pneumatic systems utilizing 3/8 inch NPT threaded connections and 3/8 inch inside diameter hose.
Installation should be performed by a qualified pipefitter, HVAC technician, or industrial mechanic. Always depressurize and isolate the compressed air line completely before removing or installing any coupling. Apply appropriate thread sealant or PTFE tape to the MNPT threads in accordance with the fitting manufacturer guidance and applicable plumbing or pneumatic system codes. Do not exceed the rated maximum working pressure of 600 psi in service.
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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