Aqualine GPN-30-C Galvanized Steel Pipe Nipple 3 in Close Sch 40

Product Description

The AQUALINE GPN-30-C is a 3-inch close-pattern Schedule 40 galvanized steel pipe nipple designed for threaded piping systems in plumbing, HVAC, and industrial applications. A close nipple has no exposed center unthreaded section — the threads on each end meet or nearly meet at the midpoint, making it the shortest possible nipple for a given pipe size. This configuration is used where minimal fitting-to-fitting distance is required. The Schedule 40 wall thickness provides standard pressure ratings for water, gas, and steam service. Hot-dip galvanizing delivers corrosion resistance for wet or outdoor installations. Licensed plumbers and pipefitters are the primary installers.

This nipple is suited for residential and light commercial piping systems where a 3-inch threaded connection must be made with the tightest possible inline spacing. Common applications include water supply mains, boiler piping, gas distribution headers, and pool or spa equipment plumbing where NPT threaded fittings are used throughout. The close configuration is also frequently used to extend a valve or coupling directly from a threaded port without adding measurable pipe length.

Key Features

• Close-pattern configuration — minimal center-to-center length between fittings
• Schedule 40 wall thickness for standard-service pressure ratings
• Hot-dip galvanized carbon steel construction for corrosion resistance
• NPT threaded ends for compatibility with standard threaded fittings and valves
• Suitable for water, gas, and steam service in threaded piping systems

Compatibility

Designed as an OEM-style replacement or new-installation component for 3-inch NPT threaded piping systems using Schedule 40 galvanized steel pipe and fittings.

Installation Notes

Installation is performed by licensed plumbers or pipefitters following applicable IPC or IFGC code requirements for the service type. Apply thread sealant tape or pipe dope rated for the intended service — gas, water, or steam — before threading into fittings. Use a pipe wrench on the fitting body, not the nipple center, to avoid deforming the threads. Shut off and depressurize the system completely before removing or installing any threaded components.

Technical Specifications

• Pipe Size: 3 inches
• Pattern: Close
• Schedule: 40
• Material: Galvanized Steel
• Thread Type: NPT
• Weight: 1.01 pounds
• UPC: 675135120901

Standard Information

• Brand: AQUALINE
• Manufacturer Part Number: GPN-30-C