Value Collection 12135 Black Steel Reducing Coupling 1/2x3/8 Npt

Product Description

The VALUE COLLECTION 12135 is a black-finish steel reducing coupling designed to connect pipes of two different diameters in threaded piping systems. It transitions from a 1/2-inch female NPT connection to a 3/8-inch female NPT connection, allowing technicians to reduce pipe size inline without additional fittings. The steel construction and black finish suit low-pressure fluid and gas distribution lines common in HVAC, plumbing, and light industrial applications. Licensed plumbers and HVAC pipefitters install this fitting where a direct threaded reduction is required in a run of iron or steel pipe. This listing includes a package quantity of 5 couplings.

This reducing coupling is used in residential and light commercial piping installations where NPT-threaded black iron or steel pipe is specified. Typical applications include gas supply lines, compressed air distribution, and hydronic heating systems where a pipe diameter reduction is needed at a junction point. The black finish is standard for gas piping installations per common mechanical codes. The coupling threads onto standard NPT male pipe ends and is compatible with pipe thread sealant or PTFE tape as required by the applicable code.

Key Features

• Transitions 1/2-inch NPT female to 3/8-inch NPT female in a single fitting
• Steel construction for durability in gas, air, and fluid piping systems
• Black finish consistent with standard black iron pipe for gas line applications
• Threaded NPT end connections for tool-tight assembly without welding or soldering
• Sold in a package of 5 couplings for multi-joint or multi-location installs

Compatibility

Designed as an OEM-style replacement and general-use fitting compatible with standard 1/2-inch and 3/8-inch NPT-threaded black iron or steel pipe systems.

Installation Notes

Installation is performed by a licensed plumber or HVAC pipefitter following applicable code requirements such as the IFGC or IPC. Shut off the gas or fluid supply and depressurize the line completely before removing or installing any fitting. Apply an appropriate pipe thread sealant or PTFE tape to male NPT threads before assembly and tighten to a wrench-tight connection using a pipe wrench. Do not overtighten, as this can crack fittings or damage threads.