Nipples 331033803 Galvanized Steel Pipe Nipple Sch 40

Product Description

The NIPPLES 331033803 is a Schedule 40 galvanized steel pipe nipple used to extend or connect threaded pipe runs in mechanical, plumbing, and industrial piping systems. It features a 1-1/2 inch male NPT (MNPT) thread on one end and a 4-1/2 inch threaded-both-ends (TBE) configuration. The welded steel construction meets Grade B material standards. With a maximum operating pressure of 150 psi at 150 degrees F, this nipple is rated for use with air, gases, non-potable water, and oils. The hot-dip galvanized finish provides corrosion resistance for interior and light exterior applications. Plumbers, pipefitters, and mechanical contractors use this fitting in a wide range of commercial and industrial piping assemblies.

This pipe nipple is suited for use in air distribution lines, gas piping, oil supply systems, and non-potable water piping where a short close-nipple or extension is required. The MNPT thread pattern is compatible with standard NPT fittings including couplings, tees, elbows, and valves. Residential and commercial mechanical contractors commonly install this nipple when connecting branch lines, equipment unions, or shutoff valves in Schedule 40 threaded pipe systems.

Key Features

• Schedule 40 wall thickness for standard-duty threaded pipe applications
• Galvanized finish for corrosion resistance in air, gas, oil, and non-potable water service
• Grade B steel with welded pipe construction
• Rated to 150 psi at 150 degrees F operating conditions
• 1-1/2 inch nominal pipe size with MNPT threading on both ends
• Made in the United States

Compatibility

Designed as a standard Schedule 40 threaded pipe nipple compatible with 1-1/2 inch NPT fittings including couplings, unions, elbows, tees, and valves used in air, gas, oil, and non-potable water piping systems.

Installation Notes

Installation is typically performed by licensed plumbers or pipefitters following applicable codes such as the International Plumbing Code or International Fuel Gas Code. Shut off the supply line and relieve system pressure before removing or installing any threaded fitting. Apply appropriate thread sealant or PTFE tape to the male threads before assembly. Do not use this nipple in potable water systems or steam service applications.

Technical Specifications

• Nominal Pipe Size: 1-1/2 inches
• Thread Type: MNPT
• Length: 4-1/2 inches TBE
• Outside Diameter: 1-29/32 inches
• Inside Diameter: 1-39/64 inches
• 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: 331033803