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The DIXON VALVE COUPLING -14255-11 is a steel pneumatic hose coupling nipple designed for compressed-air and pneumatic fluid-transfer lines. Machined with a 1-inch male NPT (MNPT) thread, it mates to standard NPT-threaded hose ends and fittings. The coupling is rated to 600 psi maximum working pressure, making it suitable for demanding industrial and shop-air applications. Construction is all steel for durability in environments where abrasion, heat, and mechanical stress are routine. Installation requires no special tooling beyond a pipe wrench and appropriate thread sealant. This fitting is a standard stock item used by plumbing, industrial maintenance, and pneumatic system technicians.
This coupling nipple is used in pneumatic hose assemblies where a secure, leak-free NPT threaded connection is required. Typical applications include shop-air distribution lines, compressor outlet connections, pneumatic tool supply lines, and general industrial fluid-transfer piping. The 1-inch thread size accommodates hose inside diameters of 1 inch, matching common medium-to-large bore pneumatic hose and pipe configurations found in commercial and industrial settings.
Designed as an OEM-style replacement or new-installation nipple fitting for pneumatic hose assemblies using 1-inch MNPT threaded connections rated to 600 psi or below.
Installation should be performed by a qualified technician familiar with pneumatic and compressed-air systems. Depressurize and lock out the air supply before removing or installing any fitting. Apply an appropriate thread sealant or PTFE tape to the MNPT threads before assembly and tighten with a pipe wrench to a snug, leak-free fit. Follow applicable OSHA and facility safety codes for compressed-air system 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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