Nipples 331028209 Galvanized Steel Pipe Nipple 1-1/4 in

Product Description

The NIPPLES 331028209 is a close-pattern, threaded-both-ends (TBE) galvanized steel pipe nipple sized at 1-1/4 inches nominal pipe size (NPS) and manufactured to Schedule 40 wall thickness. It carries a Grade B steel classification with welded pipe construction and a hot-dip galvanized finish for corrosion resistance. With a maximum operating pressure of 150 psi at 150 degrees F, this nipple is suited for moderate-pressure systems across a range of media. Plumbers, pipefitters, and HVAC mechanics install this type of fitting when a minimum-length threaded connection is needed between two female-threaded components.

This pipe nipple is appropriate for use with air, gases, non-potable water, and oil service lines in both residential and light commercial installations. The close pattern means the fitting is fully threaded from end to end with no unthreaded center section, making it ideal for tight-clearance situations where a longer nipple would not fit. It is manufactured in the United States and meets standard Schedule 40 dimensional requirements for 1-1/4 inch NPS fittings.

Key Features

• Close TBE (threaded both ends) pattern for minimum installed length
• Galvanized finish provides corrosion resistance for indoor and moderate-exposure environments
• Grade B steel with welded pipe construction rated to Schedule 40 wall thickness
• Rated to 150 psi at 150 degrees F for air, gas, non-potable water, and oil service
• 1-1/4 inch MNPT threads for compatibility with standard female NPT fittings and valves
• Made in the United States

Compatibility

Designed as an OEM-style replacement or new-installation fitting for standard 1-1/4 inch female NPT threaded piping systems carrying air, gases, non-potable water, or oils at Schedule 40 pressure ratings.

Installation Notes

Installation is typically performed by licensed plumbers or pipefitters following applicable IPC or IFGC requirements for the medium being conveyed. Shut off and depressurize the system fully before removing or installing any threaded pipe fitting. Apply an appropriate thread sealant or PTFE tape to the male threads before assembly, and tighten to a snug fit using a pipe wrench — avoid over-torquing, which can crack fittings or damage threads. Verify that the fitting material and pressure rating are compatible with the specific fluid or gas in the system before installation.

Technical Specifications

• Nominal Pipe Size: 1-1/4 inches
• Outside Diameter: 1-21/32 inches
• Inside Diameter: 1-3/8 inches
• Thread Type: MNPT (threaded both ends, close pattern)
• Schedule: 40
• Maximum Operating Pressure: 150 psi at 150 degrees F
• Material: Steel, Grade B
• Construction: Welded
• Finish: Galvanized
• Application: Air, gases, non-potable water, oils
• Country of Origin: United States

Standard Information

• Brand: NIPPLES
• Manufacturer Part Number: 331028209