3/8 inch x 6 inch Galvanized Steel Nipple

3/8" x 6" Galvanized Steel Pipe Nipple – Threaded Extension for Low-Pressure Piping Systems

The 3/8" x 6" Galvanized Steel Nipple is a straight, Schedule 40 pipe segment with male National Pipe Taper (NPT) threads on both ends. Designed for mechanical piping systems, this nipple allows the extension or connection of threaded pipe runs in applications involving non-potable water, air, and low-pressure gas. It is fabricated from carbon steel pipe conforming to ASTM A53 or equivalent, with a hot-dip galvanized finish to provide enhanced corrosion resistance in indoor and lightly exposed environments.

Product Specifications

• Nominal Size: 3/8" NPT x 6" overall length
• Material: Carbon steel, hot-dip galvanized coating
• Wall Thickness: Schedule 40
• Thread Type: NPT per ANSI/ASME B1.20.1
• Manufacturing Standard: ASTM A733 (for pipe nipples)

Installation Guidelines

Before installation, confirm compatibility with mating components and ensure all threads are clean and undamaged. Apply a suitable thread sealant or PTFE tape to male threads before tightening. Tighten using standard pipe wrenches with care to avoid over-torquing. All assembled joints should be tested per system and code requirements prior to being placed in service.

Common Applications

This nipple is typically used in:

• Water distribution (non-potable)
• Low-pressure natural gas or propane piping
• Compressed air systems
• Fire sprinkler branch connections (non-potable)

It is intended for use in commercial and light industrial environments requiring rigid, corrosion-resistant pipe extensions.

Material Performance

Galvanized steel pipe offers increased service life over black steel in mildly corrosive environments. The zinc coating helps resist surface oxidation caused by moisture, but the fitting is not recommended for continuous use with potable water unless otherwise certified. For outdoor or harsh environments, additional protection or alternative materials may be necessary to prevent long-term corrosion.

The 3/8" x 6" Galvanized Steel Pipe Nipple is a durable and standardized fitting used to extend or connect threaded components in code-compliant piping systems. Its hot-dip galvanized coating and NPT thread compliance make it suitable for general-purpose mechanical applications where corrosion resistance and pressure containment are required.