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The ANVIL INTERNATIONAL INC 8700134003 is a black reducing coupling designed to connect pipe segments of two different diameters in a single inline fitting. The coupling transitions from a 1/2 inch female end to a 3/8 inch female end and is finished in black iron, making it appropriate for gas piping, compressed air, and similar low-pressure threaded piping systems. It is installed by licensed plumbers, pipefitters, and HVAC technicians working on residential and light commercial systems. The threaded configuration follows standard NPT fitting conventions, allowing straightforward installation with common hand tools.
This reducing coupling is suited for applications where a piping run must step down in diameter without an intermediate nipple or union. Common uses include gas supply lines, black iron piping assemblies, shop air distribution, and general trade piping layouts. The black iron finish distinguishes it from galvanized fittings and is widely accepted for natural gas and propane distribution piping within structures, subject to local code requirements.
Designed as an OEM-style replacement and general-use fitting for standard NPT threaded black iron piping systems in residential and light commercial installations.
Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes, including IFGC requirements for gas piping. Shut off the gas supply or compressed air source completely before disassembling or extending any piping run. Apply an approved pipe thread sealant or PTFE tape rated for the intended service to all threaded connections before assembly. Do not overtighten threaded fittings; use a pipe wrench for proper engagement without cracking the fitting body.
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