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The DIXON stc2015 is a King Combination Nipple Reducer, jump-size configuration, designed to transition between a 1-1/4 inch Male NPT threaded fitting and a 1-1/2 inch hose barb connection. Constructed from plated steel, this straight-body fitting delivers reliable mechanical strength for low-pressure discharge and suction service. It is a standard trade fitting installed by plumbers and fluid system technicians wherever a threaded pipe connection must step up to a larger-diameter hose barb. The straight orientation keeps routing clean and predictable in tight plumbing assemblies.
This fitting is suited for low-pressure discharge and suction applications involving compatible liquids. Typical installations include irrigation systems, industrial fluid transfer lines, pump suction and discharge piping, and general-purpose liquid handling setups where an NPT-to-hose-barb reducer is required. The jump-size design accommodates the one-size step between a 1-1/4 inch NPT male thread and a 1-1/2 inch hose inside diameter, making it a practical solution when standard same-size fittings will not bridge the connection.
Designed as an OEM-style replacement or direct-fit reducer for systems requiring a 1-1/4 inch Male NPT to 1-1/2 inch hose barb transition in low-pressure liquid service applications.
Installation of this fitting is typically performed by licensed plumbers or fluid system technicians. Shut off all upstream pressure and drain the line before removing or installing any threaded fitting. Apply thread sealant or PTFE tape to the male NPT threads per standard IPC practice before make-up. Do not overtighten threaded connections — hand-tight plus wrench turns appropriate for the pipe material is the standard approach. Ensure the hose barb end is secured with a properly rated clamp for the operating pressure and hose ID.
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