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The ASC Engineered Solutions 300150406 is a concentric reducer coupling made from cast iron, designed to connect two female NPT pipe ends of different diameters in a single inline fitting. The larger end accepts 1-1/2 inch female NPT pipe and the smaller end accepts 1/2 inch female NPT pipe, making it a reliable solution for reducing pipe diameter within a run. Rated at 175 psi at 150 degrees F maximum operating pressure and classified as Class 125, this coupling is suited for Schedule 40 pipe systems. Plumbers and pipefitters install this fitting in commercial and industrial water, steam, and general fluid service piping systems.
This concentric reducer coupling is intended for use in Schedule 40 pipe installations where an inline diameter reduction is required. It is commonly installed in residential and commercial plumbing, hydronic heating, and general industrial piping applications where a transition from 1-1/2 inch to 1/2 inch pipe is needed. The female NPT threads on both ends allow straightforward threaded assembly with standard pipe. The cast iron construction and Class 125 pressure rating make it appropriate for moderate-pressure service environments.
Designed for use with Schedule 40 threaded pipe systems using 1-1/2 inch and 1/2 inch female NPT connections in Class 125 service applications.
Installation should be performed by a licensed plumber in accordance with applicable local plumbing codes and the International Plumbing Code (IPC). Shut off and depressurize the pipe system completely before removing or installing any threaded fittings. Apply thread sealant or PTFE tape to the male pipe threads before assembly and hand-tighten before using a pipe wrench to bring threads to full engagement. Do not over-torque cast iron fittings, as the material is brittle and can crack under excessive force.
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