Jones Stephens b1650666 Black Iron Reducing Coupling 3x1

Product Description

The JONES STEPHENS b1650666 is a black iron reducing coupling designed to connect pipes of two different diameters within a threaded black steel piping system. This banded reducing coupling transitions from a 3-inch pipe to a 1-inch pipe and is manufactured from steel, meeting ANSI 372-2016 standards. The fitting measures 4.20 inches in overall pipe length with an outside diameter of 4.30 inches. It is a standard threaded fitting installed by licensed plumbers and pipefitters in gas distribution, fire suppression, and industrial piping applications.

This reducing coupling is suited for use in commercial and residential piping systems where black steel pipe is the specified material. Typical installation scenarios include natural gas supply lines, compressed air systems, and other applications requiring a durable, threaded steel fitting. The banded design aids in handling and alignment during assembly. Installers working on gas systems should ensure compliance with applicable IFGC and local code requirements.

Key Features

• Reduces from 3-inch to 1-inch pipe diameter in a single threaded fitting
• Banded construction for improved handling and installation alignment
• Steel construction meets ANSI 372-2016 standard
• Overall pipe length of 4.20 inches and outside diameter of 4.30 inches
• Compatible with standard black iron threaded pipe systems

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard threaded black iron pipe systems requiring a 3-inch by 1-inch reducing coupling.

Installation Notes

Installation should be performed by a licensed plumber or pipefitter in accordance with applicable local codes and the International Fuel Gas Code where gas service is involved. Ensure all pressure in the system is fully relieved and the supply is shut off before removing or installing any threaded fittings. Apply an appropriate pipe thread sealant or PTFE tape rated for the intended service medium to all threaded connections. Do not over-tighten threaded joints, as this can damage the fitting or connected pipe threads.

Technical Specifications

• Inlet Size: 3 inches
• Outlet Size: 1 inch
• Overall Pipe Length: 4.20 inches
• Outside Diameter: 4.30 inches
• Material: Steel
• Standard: ANSI 372-2016
• Country of Origin: China

Standard Information

• Brand: JONES STEPHENS
• Manufacturer Part Number: b1650666