Anvil 0321201121 Steel Pipe Coupling 3/8 Inch Threaded

Product Description

The ANVIL 0321201121 is a Class 300 threaded steel pipe coupling designed for use in liquid, gas, and steam piping systems. It accepts 3/8-inch NPS threaded pipe ends and is rated at 300 psi for both liquid and gas service as well as steam service, making it a reliable choice across a wide range of fluid and pressure applications. The galvanized finish provides corrosion resistance for use in demanding environments. Licensed plumbers, pipefitters, and mechanical contractors install this type of fitting in commercial and industrial piping assemblies where a durable, standards-compliant threaded connection is required.

This coupling is suited for 3/8-inch NPS piping runs in residential, commercial, and light industrial settings. Typical applications include natural gas distribution lines, compressed air systems, water supply piping, and low-pressure steam systems. It is manufactured to API standards, which makes it appropriate for installations where code-compliant fittings are specified. The compact size and threaded end connections make it straightforward to integrate into existing threaded pipe systems without specialty tooling.

Key Features

• Class 300 rating supports 300 psi liquid and gas pressure as well as 300 psi steam pressure
• 3/8-inch NPS threaded end connections for standard pipe thread engagement
• Galvanized steel construction provides corrosion resistance in wet or outdoor environments
• Manufactured to API standards for code-compliant installations
• Threaded coupling design allows tool-free disassembly and reassembly during maintenance

Compatibility

Designed as an OEM-style replacement or new-installation fitting for 3/8-inch NPS threaded steel pipe systems in liquid, gas, and steam service.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable mechanical codes such as the IPC or IFGC. Depressurize and isolate the pipe system completely before installing or replacing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads before making up the joint, following the sealant manufacturer's instructions for the service fluid. Do not overtighten threaded connections, as this can crack fittings or distort threads.